Interested in this battery? Use code EMILYANDCLARK for an extra 4% OFF: shrsl.com/461b3
@JohnnyLim-c9b
5 ай бұрын
I had 3 x Redodo 12v 100ah batteries and it works well a few times in the first 3 months. After that, when I had issues they were not forthcoming in their reply. Response and attitude are bad for the past weeks. I am still hoping they will handle this well.
@Clarks-Adventure
5 ай бұрын
Thanks for sharing your experience
@GeorgeShook-su8fs
5 ай бұрын
I do not quite understand on the comment that you made that on those batteries you can't take the cold so you're saying that if you are in a camper and it's 40 below outside that that battery could have some internal breakdowns because it's too cold to operate?
@Clarks-Adventure
5 ай бұрын
As I answered in your other comment. LiFePO4 cells are damaged if charged while frozen
@marzsit9833
Жыл бұрын
the reason batteries like this have internal spacers is because the case is designed to fit in existing battery boxes and holders designed for lead/acid batteries. yes, they could make them smaller but then they would not be a standard size and would require custom mounts.
@jwiger
Жыл бұрын
You're absolutely right. This battery size is a 4D. Common in tractors and other heavy duty applications.
@lenwhatever4187
Жыл бұрын
A good series. I think almost everyone will be looking at lithium replacements within the next 5 years, unless something else even more fantastic hits the market running. The reality though, is that while an E-car needs better power density going forward, a boat (besides dinghy) needs better power collection. I expect the power collection for boats will move slower than battery power density.
@justinschuchat3650
Жыл бұрын
Clark and Emily, you both provide such great information to the Sailing community. The battery teardown is also good information. There are so many battery teardown videos on KZitem already and I feel your time would be spent better on the things you both do already. By the way my Bank Manager is humming away and my batteries are happy and so am I.
@Clarks-Adventure
Жыл бұрын
Great
@landosharks9669
Жыл бұрын
I spent so so much time researching lithium batteries cost/value and ultimately took the chance on Redodo. Since that purchase back in January, these batteries are climbing in price. I respect your own hands-on research and am pleased that I went with them.
@Clarks-Adventure
Жыл бұрын
Thanks
@mondobizzarro79
7 ай бұрын
HI! How are you feeling with the redodo battery so far? There are many negative reviews of the cheap lifepo4s, I would also like to get one but I'm doubtful. Thank you!
@herberthahn6964
Жыл бұрын
Excellent beginning if you missed something I would not know. I now know more about lithium batteries than I did before the video. Thanks
@kbjerke
4 ай бұрын
After a fair bit of research, I selected a pair of 100 A/H batteries from this company. I've had them only a couple of weeks, but so far they work really well as a replacement for the AGMs I had in my small home emergency backup. Thanks for the review and deep dive into the insides!! 👍
@kirenireves
Жыл бұрын
Amazing content. Like a mini-class in batteries. Your service to the boating world (...and the RV world, and the off-grid homestead world, and the .....) is appreciated.
@Clarks-Adventure
Жыл бұрын
Thank you
@livingsimplytosimplylive6817
Жыл бұрын
Just really appreciate your videos
@Clarks-Adventure
Жыл бұрын
Thank you. I'll do better on the next one. This was so much more work than I thought it would be. It will be easier next time.
@livingsimplytosimplylive6817
Жыл бұрын
@@Clarks-Adventure You have a wonderful ability to explain technology.
@justinallen9104
Жыл бұрын
Your videos are such a valuable wealth of knowledge, I appreciate the way you explain the theory and application on most systems you have covered. You make the DIY of what can seem to someone unfamiliar with these systems, like me, easily achievable! I look forward to your videos! Thank You!
@Clarks-Adventure
Жыл бұрын
Thank you Justin. Let me share a joke that a patron made with me. Clark, you terrify my wife. You make me think I can do things I shouldn't be trying.
@justinallen9104
Жыл бұрын
@@Clarks-Adventure I love it!
@SirCharles12357
Жыл бұрын
Great job editing that video Emily! Thanks Clark! I learned a lot and will put that knowledge to use!
@DavidYoung-mi4zq
Жыл бұрын
I got 4 of these Redodo batteries for drop in replacement for the Ryobi 48V zero turn lead acid batteries. So far so good!
@Zshbk
11 ай бұрын
Woah. That's a cool application. What benefits have you seen by not using these over the ryobi branded cells?
@PyeGuySailing
Жыл бұрын
I'm glad it wasn't terrible, I bought the 100amp version for my electric dinghy setup. Funny enough because of Peukert's Law, 4 of these batteries in series could potentially replace the 16 golfcart batteries I have running my electric sailboat. It might even be better, I'd just have to change my motor controller 🤔🤔🤔
@johnnylightning1491
Жыл бұрын
Really good video Clark. I'm looking forward to the whole series, but since my batteries will be in an RV low temp protection is important. Hopefully some of the others will have low temp protection. Keep the good stuff coming.
@Clarks-Adventure
Жыл бұрын
Yes I have some coming with that feature
@bobuncle8704
Жыл бұрын
What an excellent battery review. I may well be building a system later this year, and this will help me. Thank you
@Clarks-Adventure
Жыл бұрын
Thanks
@Clarks-Adventure
Жыл бұрын
Remind me of your real name I know it's not Bob but I forgot.
@bobuncle8704
Жыл бұрын
@@Clarks-Adventure my real name is Ian.
@Clarks-Adventure
Жыл бұрын
Yep. Sorry I forgot Ian
@bobuncle8704
Жыл бұрын
@@Clarks-Adventure all good
@cgwworldministries83
Жыл бұрын
The best I have found currently is a tossup between timeusb's 220ah and redodo 230ah (they are the same battery getting around 227ah of time) Both have serviceable steel casing that you can unscrew for under $600USD. Find a better deal, I dare you. Holy shit someone who understands power like I do!!! Finally! It's like people buy things and slap them together and don't think about any of it. They end up catching $250,000 RVs on fire and scratch their heads wondering what went wrong but in the next RV they make the same mistakes! Instant subscribe from me!
@kurtschaefer8489
Жыл бұрын
Thank you Emily and Clark. I already purchased a BBM from you. I'll be checking your reviews on batteries before I buy.🌊
@TheOldGuy
Жыл бұрын
Great Job with the review! The only thing I could think of would be to have some thermal imaging capability. You could look at the heat dissipation of the heat sinks on the BMS, and if there were any hot spots on the bus bars ( that may indicate a substandard solder / weld). Thanks!
@Clarks-Adventure
Жыл бұрын
What a great excuse to buy a fun toy!
@TheOldGuy
Жыл бұрын
@@Clarks-Adventure You're Welcome!
@stephaneroy8415
8 ай бұрын
I've watch quite a lot of video to make up my mind about Lipo Batteries , but you've raise my understandind to a new level , and you really make it efficently and interresting , Thanks a bunch and keep up , i'll be back for sure.
@Clarks-Adventure
8 ай бұрын
Nice of you to say Stephan. Check out the leader board in the description for more reviews. Also we have a lot of other electrical videos. You might want to start here www.emilyandclarksadventure.com/bbms
@mattcaine7614
Жыл бұрын
Very good information guys, hope at some point you could do one on building you own battery. i.e. from the cells up.
@Clarks-Adventure
Жыл бұрын
Yes I think that's a good idea
@paulpozboater
Жыл бұрын
Wonderful! You're the best, Clark!!! I learn so much watching.
@Clarks-Adventure
Жыл бұрын
Thanks Paul
@jonathanwetherell3609
Жыл бұрын
As a Mech. Eng. that was spot on. Thanks for the tutorial.
@Clarks-Adventure
Жыл бұрын
Thanks Jonathan. High praise
@minivancampergal1554
Жыл бұрын
Wow, excellent review!! I’ve been learning how to review power stations for my channel. You’re so knowledgeable, thank you for sharing your expertise! (I also love the leaderboard idea- I hate that I gave my first batteries such glowing reviews!)
@closertothetruth9209
Жыл бұрын
im looking forward to seeing graphene batteries, they say they going to make them here in Australia, supposably graphene holds more power and charges faster.
@Clarks-Adventure
Жыл бұрын
Every new tech is better in the reports. Seldom do they make the impact that Lifepo4 did. I find for off-grid applications where weight is t critical LiFePO4 is quite useful. Lead is like a computer from the 90s. You always wanted just a bit more out of it. LiFePO4 feels like a computer from 2010. Perfectly capable of doing the job.
@USA-GreedyMenOfNoIntegrity
10 ай бұрын
Add a Renogy 200aH 12V to the board when you have time. Thank you for your excellent videos.
@Clarks-Adventure
10 ай бұрын
That process starts for us when a battery manufacturer contacts us with the offer of a review battery. For them it often starts from someone like you suggesting our channel to them. Balls in your court
@katiekumcgil
Жыл бұрын
the batteries i make now for high end ebikes with dc currents of up to 850 amps continuous ,use 3m Novac dilectric fluid ,and immersion cooling,cells now never go higher than a few degrees under full load ,.and can charge the battery at 80 amps continuous,and have advantage of never being able to catch fire
@katiekumcgil
Жыл бұрын
I think you could just drill a hole in that 12 volt box and fill it up with Novec fluid would make battery last years longer
@TrevorStruthers
11 ай бұрын
Disassembling one of these topless on the railings of a boat, probably wasn't what they had in mind, but meh...you did it! Edit: I added the topless.
@christophersimpson7052
Жыл бұрын
perfectly timed video thank you for all the hard work :D
@Clarks-Adventure
Жыл бұрын
Thanks Christopher
@DroneManMurphy
10 ай бұрын
Studying up to start a backup solar system; very interesting video! 👍😊
@matteng2332
10 ай бұрын
Your videos have been a great help to me, I have built a 200 amp hour 2000 W, portable battery box for camping.
@Clarks-Adventure
10 ай бұрын
I'm glad they helped
@petertychynskyi7943
9 күн бұрын
Great video! Thanks for explaining all of that stuff, it really helped
@Clarks-Adventure
9 күн бұрын
If you liked this you might like the others in the series(check the leaderboard in the description). Even if you aren't interested in buying the other offerings I hope that I added a bit of general battery knowledge to each.
@abelincoln3261
9 ай бұрын
Oh yeah I see what you mean that's one hot battery. I like the way she lays flat and shows off her power poles...oh my don't get me started... Whoooser..that one hot battery! 😅
@tomscolick3593
Жыл бұрын
im not a boat man but i use lifepro batterys for my solar home system its nice to see you do the tare down and run the test i also build battery pack with bms 12 up to 27 volt batterys i thank the lifepro with bms is theonly way to go save you lots money from replacements i have a lifepro battery i built that has 32 32650 battery per cell there is4 cells of 32 battery that run some of the appiance in my house thanks for your informatoin on the lifepro battery
@Clarks-Adventure
Жыл бұрын
Have you seen this to protect your Li investment from low current overcharge? www.emilyandclarksadventure.com/bbms
@sv.foamball
Жыл бұрын
A few items I've been adding to my list that you might want to include on your spreadsheet: Warranty Duration Minimum Cycles Maximum Continuous Charging Current Self-Heating Y/N Low Temp Shutoff Y/N Bluetooth While your casual style is obviously popular, a bit more of an organizational touch might help with review-type content. Just some graphics on what you'll be covering, tests, expected results, observed results, stuff like that. Keep it simple and minimal - the data is in the spreadsheet - just let us know what you'll be up to and what you found.
@Clarks-Adventure
Жыл бұрын
Good ideas
@Clarks-Adventure
Жыл бұрын
Yep.
@jasonsweet1868
Жыл бұрын
You need to do your own show it sounds really good more technical data and less banter should be able to fit it all in, maybe 2 minutes
@Clarks-Adventure
Жыл бұрын
Just jump to the end. There are indexs
@katiekumcgil
Жыл бұрын
the best dischager and charger tester is the cycle analyst version 3 you connect 2 x 4-500 amp current shunts and 2 x 2400watt bar heaters ,or huge load dump resistors
@katiekumcgil
Жыл бұрын
there was nothing i could find ready made online that could properly pressure test the big ebike batteries
@ballomni
Жыл бұрын
You should also include AGM lead, according too everything you have said, I have also researched There is no replacement for lead it has properties that, lithium does not have, my deep cycle 8D and 4D have started my 28 hp M2003 Volvo, I also had too start it by manual crank once, Life savor with a Hurricane 20 hours away. Yes, purchased a dedicated starter battery as soon as I got back, but never had too use it after that. Funny how that works. I have a 8D 4D AGM’s and standard Start car battery, think it is a die hard, was thinking about replacing the 8D with lithium iron, figure the weight savings and power increase would let me run a new 3000 watt inverter. Have a 500 watt one now , but refitting and space is always a premium the wife Loves her hot showers I have both Electric AC or engine coolant water heater, works great, with the new Water Maker, still have not decided on that also, with our 110 gallons of fresh water would not have too fill both tanks, rather use them as ballast on different tacks pump 50 gallons to either side, make water at the destination on hook. Also less weight faster boat. She is already very fast as a Beneteau 350 89, points also very high, winged shoal keel cast iron. Always wanted too sail the Chesapeake and beyond with her. Went all the way too Bangor Maine with her. So doing the work in planning her refit, Love your series, Troubled about your cough, my wife has that since Covid, slow too get better. If you both are ever up in Long Island reach out. Greenport on the north fork is where StarLight is Where in Smithtown, center North Shore. Family goes back to 1631 here.
@Clarks-Adventure
Жыл бұрын
Thanks. I agree with the advantages of lead. www.emilyandclarksadventure.com/bbms
@joelw2023
Жыл бұрын
Great test. I know you're retired but you're good and logical at this kind of stuff. Thanks for sharing.
@Clarks-Adventure
Жыл бұрын
They don't take your brain when you retire. :)
@joelw2023
Жыл бұрын
@@Clarks-Adventure Yeah, I mean thanks for still putting in the effort and passing along your findings.
@s.mendez7160
9 ай бұрын
Hey Clark, great to see you reviewing batteries. Would like to see you test the BMS thermal cut out sensors. Heat gun for high temp, and put the low temp sensor in ice water, and confirm the BMS FET's switch off. Would love to see a video of you doing manual balancing with your precision resistor. Thanks again!
@Clarks-Adventure
9 ай бұрын
I think the manual balance video would be important and I have a badly balanced battery here. I did the thermal test in an earlier review. The Elefast I think. If the unit has Bluetooth there is no sense testing that as I can see the temperature on the phone. And the units without Bluetooth tend to just have a high temp bimetallic switch. They tend to be reliable
@brownnoise357
Жыл бұрын
Great Review ! Loved it ! 👍🏴⛵️🌟🌟🌟
@Clarks-Adventure
Жыл бұрын
Thanks
@ferrelljohns545
Жыл бұрын
You said that your fingers might have touched the probe tips, my Fluke will show my heart beats when in R mode.
@bravofighter
Жыл бұрын
Great video, thanks for this. I’ve been shopping to eventually replace my AGM, but I have a lead acid still in my little sailboat, only because the battery compartment is so tiny. I have to shop around, but I don’t know what to trust. I like Dakota Lithium, but they’re out of my budget…by a LOT. I need something suited to reality, but with decent enough quality to not damage my VHF or burn smaller gauge wires.
@Clarks-Adventure
Жыл бұрын
I think there are cheap Jem's out there. I'm looking for them. No battery out there is going to damage your vhf or in itself burn your wire. I suggest my master class playlist
@oneeyedphotographer
10 ай бұрын
9:32 I presume those terminal posts are well sealed. So could be the USB charge points, by sealing around the entry points' grommet. You would need to inspect.
@dsanner
Жыл бұрын
Nice break down... multiple cheap batteries each with their own BMS seems like good/inexpensive solution. I would think the BMS should do some amount of passive cell balancing but only when you're getting one of the cells into the 'hockey stick' range. I agree it makes no sense to charge until the BMS cuts off but you may need to get into a higher voltage range to get balancing to kick in. I generally only charge to 80-90% but I do 'top off' from time to time to sync my SOC meter and get a bit of balancing done in the process.
@Clarks-Adventure
Жыл бұрын
Yes it turned out it has a slow balance circuit
@katiekumcgil
Жыл бұрын
this type of bms needs very high balancing currents so it charges as fast as it can so the battery preforms as a single cell or unit
@martinluther9983
Жыл бұрын
Sepperate cables bonded together create less heat than one solid cable and less voltage drop and the required cross sectional size can be reduced !
@typxxilps
Жыл бұрын
at the end the brand and model number of the cells matter the most. Then you have to find the spec sheet to get more about the whole cell at all and run charging and discharging cycles with a battery tester like zke tech. Then you might be able to say more, but I bet these are cheap spot market cells nicely rewrapped in blue foil, nothing else and of cause no brand like EVE. Therefore they are expensive and you can judge them only after 10 years of use and based on the capacty then, after maybe 3000 cycles or 1 per day.
@YTMegiddo
Жыл бұрын
Great stuff and doing this while not feeling well... Amazing!
@cleversolarpower
8 ай бұрын
'The air came right from China' So I'm not the only one thinking this while opening packages haha.
@Dresdenfiler
Жыл бұрын
Wow, that was a great video! Thank you for the teardown. Have you ever considered building a battery from scratch? From sourcing cells/BMSs to putting it all together?
@Clarks-Adventure
Жыл бұрын
Sure I've done that. We have a 50amphour battery I built in a pelican case we use a lot for portable needs. We also use it with an electric motor on Emily's boat. In the video when I talk about destroying cells. Well, that was the first attempt at that battery.
@kirenireves
Жыл бұрын
@@Clarks-Adventure Please do a video someday about building your own battery. D.I.Y-L.I. ^_^
@lolonav
Жыл бұрын
To compare the cell i would put them in almost short circuit (very short time to see the max Amp they can deliver I would use a multimeter wich can record they should be all close to each other
@thechiefsway2618
Жыл бұрын
I did a video on how to balance a new battery that was out of balance in a existing bank. Took several weeks though. Internal balancing is very low current and very slow and typically only balances during charging.
@torstenhansen4308
Жыл бұрын
Another good one, Clark but please don’t wear your steel band wristwatch when you are working on batteries; I can’t hold my breath that long😉.
@Clarks-Adventure
Жыл бұрын
I can't believe that it took 24 hours for someone to notice that. You are the second guy You are so right. I was a fool I kicked myself all during editing. It's why we don't have gold wedding rings.
@torstenhansen4308
Жыл бұрын
@@Clarks-Adventure No worries, Covid earns you a pass. Besides, I knew that had something bad happened you would have posted a very different video 🤣.
@davidpayne9933
Жыл бұрын
Good review. I have Bluetooth connection with my Lithium BMS. I find it useful and informative. Maybe no cheap batteries have this; if they do you might want to include a look at it.
@Clarks-Adventure
Жыл бұрын
I have one coming with that feature.
@ericklein5097
Жыл бұрын
Max charge voltage of Lithium Iron Phosphate is 4.20V so not dangerous at all to take them into the high region. You're just not getting any capacity past 3.60 vs the stress you're putting on the cells. Past 3.80 most people consider the stress put on the cells to be mildly hard in terms of degradation. I charged a 2.5Ah cell up 4.2V on accident once and the capacity I dishcarged from 4.2V to 3.6V.....was 28mAh. So thats why we don't care about using the top end.
@Clarks-Adventure
Жыл бұрын
I think you might have some confusion between li-ion and LiFePO4. LiFePO4 taken to that voltage will vent and fail very quickly. I accidently did that. Expensive
@HaroldMcDermott
5 ай бұрын
I've got 4 12 200ah in series 48v and they them in part of the house I don't heat so temperatures at times can't get down to -0° to -5 at times so I just cover the with at eclectic blanket 100 watts on high but have it set to level 4 so about 40 watts and that keeps them at +15° celsius, I've not gotten around to building an insulated box yet but I'm sure 10 watts would keep them warm.
@HaroldMcDermott
5 ай бұрын
Case standard case built for many different companies and perhaps different cell sizes, also foam Installation and help with shock if it should get dropped so that's good.
@bigdaadio.K2WW
Жыл бұрын
In your spreadsheet your cost value on the 100 ah was ok, yet it was cheaper per W/H...????? As far as thermal control, its much more likely to damage the battery cold wx charging than overtemp up North, Not DR...lol Keep up the good work!
@Clarks-Adventure
Жыл бұрын
Thanks , There is more to value than the ah rating. I didn't like the holes in the case. I'm reviewing a battery called FEENCE this week. If it stands up to claims it might be the very best. It has cold protection and is really cheap. Wait for that video before buying anything.
@Jesus_Creation_Channel
Жыл бұрын
Thank you for the video, I found it very informative!
@Clarks-Adventure
Жыл бұрын
You're very welcome John
@austinmesta9862
Жыл бұрын
"that air came straight from China"... "*cough cough* I have covid again"
@johnbaumgartner2137
Жыл бұрын
Hi all, I built my 4 batteries using 4, 280 Ah cells and a BMS from overkill solsr total cost was under $1000 for a 280 Ah battery. The BMS is a 120 amp max per batteri Bule tooth, with High and low temp cut-off with an automatic balance 400 miliamp so for $4000 I have 4- 280 amp hour bank and now with your Bank manager have added 280 Ah lead to protect my main engine alt. from smooking the diodes. I have a very expensive Balmar altinator with external regulator programable chcrge... I think that on this battery would get a fail because the BMS does not have high and low temp cutoff and no automatic balancer, not even a bule tooth connection. For me each battery cost over $600 for 200 Ah. I made my battery box to handle my 4 batteries. anyway BBMS seems to work as discribed.
@Clarks-Adventure
Жыл бұрын
Thanks John. Good to hear you are happy with the BankManager. I missed something in the video. This BMS has balancing but it's at a low current or I would have seen it. It doesn't kick in till the cells are at high voltage so the BankManager would block auto balancing. But this battery is too new to need to be balanced.
@Zshbk
11 ай бұрын
I understand the reasons for the over sized case but I really wish that foam wasn't there. I want to stuff one of these batteries in a Milwaukee packout and make my own battery powered generator but it's 1.5" too long. Great video.
@Clarks-Adventure
11 ай бұрын
Did you see my video on the redodo mini? It's linked to the leader board you can get to in the description. A couple of those would likely fit.
@Zshbk
10 ай бұрын
I was hoping to use a battery with a 150a bms minimum. Might take it out of the case and spray foam it in place 😬 I will provide plenty of ventilation.
@Clarks-Adventure
10 ай бұрын
Two in parallel would give you 200a of supply current. Also I have a battery box coming with an inverter and charge controllers. Basically a power station that you supply the battery for. Less than $200usd
@jasonsweet1868
Жыл бұрын
Don't know if it's been said but the foam could provide impact protection
@Lana_Warwick
Жыл бұрын
"I'm sexy & I know it" gif @ 7:15 would have been funny. Clarke reminds me of a young, more trusting/intelligent Rolf Harris (aussie). Have you had covid vaccine? It's going around Au again. Nice graph work @20:50 Em, be nice if my retirement shares looked like that
@Clarks-Adventure
Жыл бұрын
Thank you Lana, Yes we had two courses from two different companies and each had COVID twice now. Noore airplanes for me! -Clark
@uhjyuff2095
Жыл бұрын
the bms balancer circuit on those batteries probably sucks. The way I would test a BMS for balancing is I would take the heatsink off and use a temp sensor gun over the balancing resistors on the pcb to see if they are activating. Good job getting in there and top balancing your cells.
@Clarks-Adventure
Жыл бұрын
Turns out it does have one but a real low current one
@Clarks-Adventure
Жыл бұрын
With the BankManager charging it will never balance unless you manually force the voltage up. But if you stay out of the hockey stick it might never matter
@uhjyuff2095
Жыл бұрын
@@Clarks-Adventure thats the thing, your pack was out of balance so I would assume even though you think your cells are out of the hockey stick area one or two cells are higher than the other cells, that is why cell balancing is great. Try testing a bluetooth capable lithium battery pack bms so then you can confirm your bank manager is not overcharging ANY of the cells as intended.
@dicksonchan5112
Жыл бұрын
Great videos! Could you possibly do a review on the SOK marine lithium batteries? Looking forward to more of your videos
@Clarks-Adventure
Жыл бұрын
They haven't offered one yet. I'll write them a note. If you, as an independent buyer, wrote them suggesting it might go further. We are emilyandclarksadventure@gmail.com
@mpdsailing
Жыл бұрын
Excellent!!! Thanks
@haydenwatson7987
Жыл бұрын
I have two Basen Green 460Ah batteries which are built in an 8D case and it would be interested to see you do a tear-down on it. 460Ah in an 8D makes for a lot more Ah / cubic-in than is the Redodo. They cost me $1003 which comes out to $2.18/Ah which is much less than the $3.25/Ah on the Redodo. I had $70 shipping, and it took a couple of months to get to the US from China. FYI, these batteries have the 200A JBD BMS with Bluetooth. This BMS has thermal protection that shuts off charging at whatever temperature you set it to in the APP. I set mine to shut off charging at 5ºC. The cells are listed at EVE 230Ah in a 2p4s format.
@Clarks-Adventure
Жыл бұрын
Seems like a good battery. I don't have the budget to actually buy batteries for these videos but if you have a contact there and they would like to be in a video I'd love to have a look. Our last battery review video got like 120k views. I really like getting everything under one good BMS and not doing a bunch of parallel external connections.
@braithmiller
Жыл бұрын
Well torn down. I do greatly wonder about cycle life and how as consumers we can ascertain this as truth? Cycle life/ cost per watt hour cycle rather than just cost per watt hour capacity. Compactness will help them sell more as well. Please make cells with no unnecessary spacers! Very much considering limiting my cells to 100amp hour to ovoid internal parallels.
@Clarks-Adventure
Жыл бұрын
I think internal parallels are fine. It's external parallels that get you in trouble. Keeping as much as possible under one BMS. As far as cycle life numbers. I think I just won't mention them for Chinese batteries. That's just the kind of untestable stat they lie about.
@braithmiller
Жыл бұрын
@@Clarks-Adventure Thanks for your opinion on parallels. Much of my decision to build my own and use my own bms or buy prepared cells. Likely have to assume the lower cycle numbers till time proves them.
@TrevorRandall-f4y
Жыл бұрын
Good job. Thanks 👍😃
@Clarks-Adventure
Жыл бұрын
You're very welcome Trevor
@johnlove4183
Жыл бұрын
Very informative Clark. What are the critical safety things you look at when evaluating a battery's construction? Get well soon.
@Clarks-Adventure
Жыл бұрын
Kinda talked about them in the video.
@seymourpro6097
9 ай бұрын
There's me thinking varnished fine timber and a lithium battery violence....
@justinschwartz1433
Жыл бұрын
Thank for the great video. It would be great to get the tolerances of the devices and instruments being used (i.e. 1% or 5% resistor tolerance, etc.) to better understand the level of error between each measurement.
@Clarks-Adventure
Жыл бұрын
Yes. But using the same resistor on each test kinda cancels out error. My fingers on the probe ends likely caused loads of error. As per the disclaimer on screen title
@justinschwartz1433
Жыл бұрын
@@Clarks-Adventure Thanks for the reply. However, not necessarily as resistance will vary with temp of the element after each measure or/and ambient and length of average measurements. No worries not looking for additional details or methods taken. all acceptable I guess I getting lab environment nerdy. all good!
@Clarks-Adventure
Жыл бұрын
Great point. I didn't consider heat. In the future I'll "pre warm" it on the last cell first.
@whosnextrealestate
Жыл бұрын
can you do the 410 ah redodo please!!!!
@briansouth9325
Жыл бұрын
The case is the size to be an RV replacement battery that drops right in.
@OperationGetReady
4 ай бұрын
can you tear down a li time and chins
@jasonzuvela
Жыл бұрын
Omg that cough is the funniest sound ever!
@sccobyste
Жыл бұрын
Would be good if you can go through a tutorial on a 100ah battery and a BMS that has 50amp continuous use etc as I’ve just bought a 400ah battery and it says it’s got a 100amp continuous use BMS so not sure it will power my 3000w inverter as the max amp requirement is 230amps
@Clarks-Adventure
Жыл бұрын
No you shouldn't try to draw more than 100ah from your battery. It will power it fine, you just can't draw more than about 10 amps 120v through it without your BMS getting hot and shutting down.
@GuyIncognito764
Жыл бұрын
I believe it's common with all these Chinese batteries to have the BMS top balance cells (one at a time) when they hit some high cell voltage. I know you stated you didn't think that was the case here, and it may not be. However, I've also read these balancers use a really low current like 20mA so it's possible you wouldn't notice that. The idea (I think) is that they'd balance over many charges and keep things generally in charge. They should be balancing at something like C/50 IMO, but maybe I'm missing something important.
@Clarks-Adventure
Жыл бұрын
You are right. There is a balancer in the BMS. But the BankManager doesn't take the battery up where the voltages split. One could occasionally hold them at high voltage but once balanced they tend to stay that way.
@nicolasfilsdejean
2 ай бұрын
Hi Clark. Thank you for your videos in general and this one which I have watched twice😊. I finally made the leap and replaced my service batteries with this exact model. I have aboard a quite recent Victron 30amp charger. It has a built in setting for liFePO4 battery which is programmed to charge bulk up to 14.4V and float at 13.5V. The person on-line who acts as technician/engineer from Redodo says I should charge (bulk) up to 14.6V and float at 13.8V . Should I manually modifie the settings in the Victron program or should I keep it as is by default ?? Would this default setting prolongue my Redodo battery life?? Thanks for any info. And thanks for your time.
@Clarks-Adventure
2 ай бұрын
So you have received two opinions and came to me not expecting me to confuse matters further with a third opinion? I really believe that you can't charge li to a voltage and get a long life. I have a device that charges your LiFePO4 to percent full. It's the only way to charge li properly outside a lab environment. www.emilyandclarksadventure.com/bbms If you want the deep answer read Conrad's article linked near the bottom.
@WilliamAArnett
Жыл бұрын
I would like to see you run your analysis on one of the high end batteries like Victron for comparison.
@Clarks-Adventure
Жыл бұрын
If you have an in with Victron and they send me one I'm game.
@jeffgriglack9624
Жыл бұрын
As far as protecting the battery when it gets too cold, can't you just disconnect it from the charger over the winter? My understanding, with LiFePO batteries, is that the cold alone doesn't harm them, but charging when it is cold does. I ask this because I am up north where we pull our boats out for the winter.
@Clarks-Adventure
Жыл бұрын
You are correct. But if you wish to leave systems running and have solar panels for example.....
@jordandegeus5791
Жыл бұрын
It'd be beneficial if you included BMS quality as well in your sheet
@Clarks-Adventure
Жыл бұрын
Good idea
@Clarks-Adventure
Жыл бұрын
Do you find the table otherwise useful?
@jordandegeus5791
Жыл бұрын
@@Clarks-Adventure yeah the other parts are good.
@Sting_is_Glowing
11 ай бұрын
What BMS is the battery using?
@hmspain52
Жыл бұрын
That's 50 lbs of LITHIUM! What a monster battery! My HOUSE has 50A service! LOL
@bravofighter
Жыл бұрын
The great part about lithium is that it bonds to other minerals. In this case it binds to iron, but the latest batteries being developed by Tesla bond to silicon, basically sand, so they won’t need cobalt to make the cells, and the size and weight of the battery will be 2/3 less, but the capacity will be 2/3 higher. This is music to the ears of boaters, RVers, and electronics enthusiasts, I’m waiting with baited breath because Tesla always does their design work in open source, so that it can be reproduced by others.
@Clarks-Adventure
Жыл бұрын
Your house is running much higher voltage. I'm guessing 20 times higher. Remember power is amps times volts.
@Clarks-Adventure
Жыл бұрын
New tech is always exciting
@MmmHuggles
7 ай бұрын
Just like a engineer to do shady stuff indoors (and outdoors) with enough confidence lol. My clumsy arse would have to do this outside with a full face shield and welders gloves just to keep it from catching fire or getting a screwdriver through my hand.
@marscan1
Жыл бұрын
Clark; What about hi and low temperature shutdown?
@Clarks-Adventure
Жыл бұрын
I talked that in the video
@mememe5231
Жыл бұрын
Great video! Shouldn’t that BMS have slowed or stoped the cells that were charging faster to maintain balance? Also after charging would the not equalize on their own after a few minutes? Thank you for your effort!
@Clarks-Adventure
Жыл бұрын
It turns out that the BMS has a slow cell balancer. I'd have had to have held the cells into the hockey stick for a LONG time to balance.
@David-by3im
11 ай бұрын
any of these battery companies ship to Canada? as far as I've seen, not so much
@Clarks-Adventure
11 ай бұрын
I just don't know. Canada is expensive to ship into.
@Clifforddoltran
Жыл бұрын
is it possible to charge a 36v lithium Iron Phosphate battery of my marine 12v alternator (trolling motor)?
@Clarks-Adventure
Жыл бұрын
Sure, though trolling motors don't produce much power. You could do it cheaply with a boost converter. Next Saturday's video will be all about boost converters. Though for a different application.
@RD-qn4gt
Жыл бұрын
Now, what about bulk charging Lithium? My charge controller has one setting for Volts. Do I set it at 13.6? or 14.4?
@Clarks-Adventure
Жыл бұрын
Really... Neither. BankManager!
@bitsurfr46
Жыл бұрын
Would 2 100 ah redodo minis occupy a smaller footprint than 1 200 ah batteries.❤
@Clarks-Adventure
Жыл бұрын
Yes. Take a look at the leader board linked to in our description. There is a watt per cubic inch column. I have new batteries coming but as of now this mini is by far the most power dense.
@bitsurfr46
Жыл бұрын
@@Clarks-Adventure Would you please tell me how to access the link to the battery reviews. I am using the KZitem app on my phone and can't see it.
@Clarks-Adventure
Жыл бұрын
Click the ...more link just below the word Mini in the title (below the video window)
@borichards978
Жыл бұрын
Can you do a voltx 200ah battery review
@Clarks-Adventure
Жыл бұрын
They would have to get one to me here. Seems like they are shipped from Australia. We have lots of Australian viewers, might be worth it to them. Suggest it to them
@borichards978
Жыл бұрын
I have send them a email
@Clarks-Adventure
Жыл бұрын
Great
@rsalvaterra
9 ай бұрын
Most BMSs are set to shut down at 3.65v which is considered completely safe by extensive literature and tests. So I don’t understand why the statement that charging up to BMS limit is wrong. Of course using the battery at 100% DoD reduces the number of cycles but if you want to maximize the number of cycles you should keep it at around 80% DoD. BMS are not a nuclear option. These settings are easily configurable by the manufacturer. Why would they built a device that would reduce the battery lifespan or create a hazard risk? It doesn’t make sense from a commercial point of view.
@Clarks-Adventure
9 ай бұрын
I suggest you read Conrad's article linked to the bottom of this. www.emilyandclarksadventure.com/bbms BMSs are for keeping cells from venting. Not for charging. Charging Li properly is difficult and the BankManager is the only device that does it properly. It means the difference between 6 years of life and more than double that.
@rsalvaterra
9 ай бұрын
@@Clarks-Adventure I read it few times but there’s nothing written in there that states one shouldn’t charge to 100% BMS SoC. The text argues against charging to voltage only which is a different claim. The BMS not only accounts for voltage but also other factors. So it still I don’t see an argument as to why someone should not charge until the BMS shuts off. Can you please elaborate and be more specific?
@Clarks-Adventure
9 ай бұрын
Well first off the BMS only monitors cell voltage and temperature. I'm not here to convince you. Do the research, it's out there. There are research papers on cell life as effected by charging over 100 percent Also you might find it interesting to research exactly how LiFePO4 is charged and cycled for life cycle testing. Did you follow the links Conrad suggests? If you want the answers they are out there but so are a lot of claims that say charging Li like lead is OK.
@wayneboy69
Жыл бұрын
Want more info on bank manager
@Clarks-Adventure
Жыл бұрын
www.emilyandclarksadventure.com/bbms There you go
@matthewknight5641
Жыл бұрын
Can you build a bank manager that will let me connect lifepo4 to lead acid at 24 volts? Id also like a way of connecting my 24 volt nissan leaf powerwall to lifepo4 at 24 volts. I have nissan leaf modules and lead acid batteries but im buying lifepo4 this weekend. Any help with this would be awesome.
@Clarks-Adventure
Жыл бұрын
Bankanager works 12, 24, 36, and 48v. www.emilyandclarksadventure.com/bbms But it's Lifepo4 I'm not sure what chemistry leaf packs but I bet they are different.
@matthewknight5641
Жыл бұрын
@@Clarks-Adventure leaf packs are nmc. They have 2s2p per module. I have 24 modules in a 24 volt configuration so they are actually something like 2s4p-4s3p-2p. I know that's confusing it it's how it is lol. Yes I'd like to run the lifepo4- nmc- lead acid all together. Wish there was something I could but to make them all work together since ive invested so much in so many different chemistry batteries
@michaelcousins2191
Жыл бұрын
Clark -- I'm guessing that it's not as sunny where you are with Emily gone, but I'm still hopeful that you can find energy to answer these 2 (neophyte) questions about batteries: #1. UL CERTIFIED. Some batteries state this, others don't, while still other brands make it unclear whether the UL listing is for the whole battery system or just key specific parts. For example, the Redodo appears to be UL tested for the "cell" and "BMS" but because they list specific parts it makes me suspicious that the whole battery unit is not certified (yes, I'm a suspicious SOB). Does UL listing of specific parts rather than UL listing on the whole unit matter to you? What does an engineer look for regarding certification/testing? #2. SERVER RACK BATTERY. As I'm sure you know, some people are successfully using server rack batteries in RVs. Price points seem attractive especially for 48 volt, I assume due to high manufacturing volume. One brand that has good $/watt and supposedly robust for 48 volt is SOK (for example, "SOK 48V 100Ah Server Rack Battery - User Serviceable Rack Battery" with a 10 year warranty distributed by CurrentConnected com). I've also seen 12 volt, though at a higher $/watt (G4-LifePower4 Lithium Battery 12V 400AH Server Rack Battery). Note, I'll ask you about 12v vs 48v on a different video of yours. What are your initial general thoughts for using server rack batteries on boats? Might you consider testing a server rack battery for your Leaderboard? As always, thank you for all that you do for me and others!! You're inspiring me and others to help our communities, now I just gotta figure out what do I know that's worth sharing. .....Since I don't know much, in the meantime I'll just share my brute force. Thanks! Mike
@Clarks-Adventure
Жыл бұрын
1 I really don't know much about UL. It's an insurance thing and for the US 2 I haven't looked deep but the server rack batteries I've seen are in steel cases. Great for computer rooms but saltwater boats? 12 or 24 for boats where you need to run DC devices. 48 for houses where it all goes through the inverter anyway.
@jasonbrooks4996
Жыл бұрын
What AWG wires/cables would be suited for this battery and what is a good length to have the power cables so the wires/lugs/battery terminals don't heat up to dangerous levels?
@Clarks-Adventure
Жыл бұрын
I did this series just for you. ELECTRICITY ON BOATS - Clark's Full Masterclass: kzitem.info/door/PLsT7_jPsZM5ogT6or244F49-Gy7pYFV7V You will especially like the second video I expect As for length, it will make more sense after watching these but as short as possible.
@jasonbrooks4996
Жыл бұрын
@@Clarks-Adventure Fantastic. Thank you 💡
@hoosierdaddy3705
Жыл бұрын
All bms have balancing. If they didn't batteries wouldn't last long at all.
@Clarks-Adventure
Жыл бұрын
Some just don't. But it turned out this one did, slow balancing but it had the feature.
@curacao11
Жыл бұрын
😎
@mehmetbeydogan2090
4 ай бұрын
Are you still using it? Any downsides?
@Clarks-Adventure
4 ай бұрын
No I sold it to a friend. But I haven't heard any complaints.
@brownnoise357
Жыл бұрын
Hi Guys. I’ve finally come across Confirmation that just like with our Mobile phones Which to significantly extend Lithium ion Battery Life, you only charge them to 85% Capacity Also applies to Lifepo4 Batteries as well. The information came from a Power Station manufacturer with Lifepo4 Batteries in it with the instruction on how to make the batteries last longer. That information needs to be matched with the loss of Charge Cycles due to Lifepo4 Batteries ding damaged if they are discharged to below 50 % of Capacity as well. So the usable Non Damaging Capacity of Lifepo4 Batteries is therefore 35%. The other factor we are short of knowledge on, is just how many years the the internal Chemistry of Lifepo4 is going to hold up if Treated right ? Will Prowse made an interesting comment one point, to the effect that you may as well just use Lifepo4 Batteries hard, as the internals will Fail before you get to the Cycles limit of the battery, which I thought was a rather interesting thing to say. For me, that means I’m sticking with AGM with Lead plates of 99.9% purity Lead batteries, with a House Bank large enough to carry a maximum discharge of 20% during the hours when no charge is getting back into the battery, so they never go below an 80% charge capacity level, so barring accidents like lightning strikes, the potential service life of those AGM should be in excess of 30 years. Worth a try anyway. Best Wishes and Fair Winds. ❤ Bob in Wales. 👍🏴⛵️🌟🌟🌟
@Clarks-Adventure
Жыл бұрын
I use my 1500ah of AGM that way and tend to get 15 years out of a set. I think you have a bit of a misunderstanding with your LiFePO4 limits. Understandable as almost no one seems to understand but that doesn't seem to stop people from acting authoritatively. And of course I might be wrong as well. But my working assumptions are. 1 the 85% number is derived from the case where no one has a charge controller that knows how to stop at 100% link the BankManager can. So it's just a "play it safe" tactic. But stopping charge early repeatedly causes memory ,(we have seen it) 2. The 50% number is a lead thing. I personally feel that the "best" practice is to use your Li from 100 to 20 percent max. Doing that I forecast that the next thing to kill my Li is operating temperature here in the tropics. But no one has cycled li in the field with proper charging to a natural death yet. That test will likely take 15 years.
@brownnoise357
Жыл бұрын
@@Clarks-Adventure Well a big chunk of info did come to me from a Chinese Lifepo4 batteries Manufacfurer, and the 85% charge limit to greatly extend the Battery life for Mobile phones and Tablets, did have me Curious as to whether that extending the Service Life of Lifepo4 Batteries was the case as well, then there it was in a review of a Lifepo4 batteries Power Station. Cheapest way to check it out, will be to buy one, particularly as it will be a really useful item to complement the House Bank System, and I'll hopefully e able to make those batteries last a heck of a lot longer than I anticipate. Either way, it should easily earn its keep. I agree 💯 a out the superiority of having seperate Components to the system though. Best Wishes and Fair Winds to You All. Bob in Wales. 👍⛵️✨️✨️✨️
@brownnoise357
Жыл бұрын
@@Clarks-Adventure According to that Chinese Lifepo4 Manufacturer, it is also a Lifepo4 thing as well that eats into the Recharging Cycles available, so service Life Shortening. I got just over 15 years out of my House Battery Bank of cheap Heavy Duty Agricultural Tractor Batteries on my Offgrid Smallholding, but an extreme cold spell not forecasted that dropped temperatures below minus 45 degrees C Cracked the cases. Just by not going below 50% Charge. one guy reviewing very high quality AGM's with 99.9% pure Lead plates, got over 20 years out of his and it was an accident that took them out. So worth a try. All the best. Bob. 👍
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