Do at your own risk, batteries are dangerous and should be handled with care. This is for entertainment
@KTannerPaisleyKK
5 ай бұрын
Brad you reminded me when we would label our underwear at home with our names to avoid mixups😅
@hammerandhome
5 ай бұрын
@@KTannerPaisleyKK 🤣 so true
@tonyabdon9492
4 ай бұрын
It worked, I literally left it connected for three seconds. I have a feeling as soon as you see that spark you could probably put it on the charger, but it worked.
@hammerandhome
4 ай бұрын
👍 great
@wtop1054
Жыл бұрын
Unbelievable I just got my 60v battery working THANKS A LOT
@Johnbro8
8 ай бұрын
I have done this with my batteries before and it works, but I wouldn’t connect for more than 1-2 seconds otherwise heat builds up in the wire and it could damage the battery. Originally I contacted Dewalt, after I mistakenly, completely drained my battery and it wouldn’t charge, and their response was, buy a new battery.
@yasoutherncousin
7 ай бұрын
It worked.. I used thin wires.. started to smell it after about 5 seconds. but I left it in for about 10 seconds.. it's now charging.. thank you..Dewalt 20v 4ah
@JorgeFlores-im5vh
Ай бұрын
Good my friend thanks
@davidz9699
2 ай бұрын
Worked again. Thanks
@dominoespizza1756
Ай бұрын
You’ll get a lot of inrush current doing this, could damage the cells if they are still fine but just under the minimum voltage. I would get a cheap variable voltage power supply and limit current to 100 or 200 mA and the voltage to half the battery’s nominal and slowly bring it up as it charges.
@likemilfes
8 ай бұрын
Same here, a 60V on a third party lamp, probably some flow despite device off, or just too long not used….in any case, it now charges again!
@JarettHerder
2 ай бұрын
What did you jump it with? Another 60v?
@benshell8662
Жыл бұрын
Don't know about other brands, but dewalt batteries have a fusible link inside then that can blow if they get too hot inside, has happended to me several times. You can take the top cover off and solder it back together and fix it, if this doesn't work
@hammerandhome
Жыл бұрын
Thanks I didn’t know that👍
@scrogathon
9 ай бұрын
I had 11 of my batteries in storage for a few years and let's just say that was an expensive mistake. Only a few were able to take a charge and those don't work too well anymore
@lisburnger
Ай бұрын
This 100% works. Cheers. SAVED ME THE PRICE OF 2 BATTERIES. £80
@jonasorth
5 ай бұрын
Only do that if you know the Voltage of each cell or at least the total Voltage of the battery pack. Each Cell should have over 3V wich leads to a total voltage of 18V. If the Voltage is below that you need to replace atleast one cell. The equipment you need to repair a bad cell costs more than buying a new one. So keep in mind that something like that only pays out after multiple repairs. I would say you need at least 4 batteries. Repair it or Sell it. Don‘t throw it away!!!
@jlousy1901
8 ай бұрын
Thank you! Just revived a dead v20 battery
@hammerandhome
8 ай бұрын
Sweet!
@porschadominguez8262
8 ай бұрын
Dewalt will give you a new battery within 2 years if it goes bad. No questions asked!
@zack9912000
7 ай бұрын
Yep and tbis is how house fires start
@jackwilliams7738
7 ай бұрын
What number do I need to call?
@joranvandenhardenberg6723
7 ай бұрын
4 years old battery is fixid
@supersoccer88
25 күн бұрын
It’s 3 years
@KY_REDDYNESS
7 ай бұрын
Wow! Thank you! That worked for me! I think I used to light gauge wire cause they got a lil warm but it worked! YT ftw! 👍🏼
@samsno3667
7 ай бұрын
I just tried it today and it worked but reading other post states that the battery could be still bad as a cell might have lost the recharge capacity.
@WichhartAcres
3 ай бұрын
Thanks man you just saved my 6ah dewalt battery and my 8ah bosch core18v battery!
@hammerandhome
3 ай бұрын
Awesome 👍
@jimcatanzaro7808
Жыл бұрын
This won’t work most of the time usually 1 cell in the pack goes bad or is leaking
@MrOnesicpup
Ай бұрын
I have used this trick, it work's
@ambitious_drive
Жыл бұрын
Most definitely works!!!! Thanks!!!!
@hammerandhome
Жыл бұрын
That's Great!
@user-pr1nc9tl4i
2 ай бұрын
It worked...thanks a lot 😁😁😁😁
@Mattman4god
2 ай бұрын
Worked for me on Kobalt!
@brandonlee8400
Жыл бұрын
Thanks. This worked for me
@hammerandhome
Жыл бұрын
That’s great!
@keysautorepair6038
4 ай бұрын
Never let your battery get low on charge facts.
@hammerandhome
4 ай бұрын
True! So important
@Kmot9
11 ай бұрын
Thanks! Just saved some batteries!
@rushunstoppable5769
9 ай бұрын
Try it and get power to the battery but still wont charge
@davidgutierrez4932
5 ай бұрын
Mine too
@briandemedeiros4112
2 ай бұрын
What about the battery that your boost from? Is it OK? Or does it lose power?
@winsmanmicro565
Жыл бұрын
thanks mate its working well now
@Anonymous-zv9hk
8 ай бұрын
The only thing more fun than resurrecting dead 18 to 20 volt Li-On batteries with a battery charger connected to a wall outlet, is by removing dents in your truck's sheet metal by getting really cheap inflatable beach or basket balls from a dollar-type store, or from Amazon, and placing them behind the dents you want to straighten, and then wedging the deflated balls in place with suitable pieces of 2' x 4", and then connect a small air compressor, capable of 150 psi, with a long, strong piece of tubing, and then cutting the air pump on, while hiding behind a friend's near-by truck. (Always wear ear and eye protection and a ballistic vest, or an armored suit plus eye & ear protection if the ballistic vest is not available. Safety not assured.)
@HECKAKYH-ADEKBATEH
3 ай бұрын
Buy lab power supply and limit current!! Or add large high Watt but low Ohm resistor (10-50). Otherwise current is limited by battery impedence, which is low and you damage batteries. Also, your dewalt power supply lacks low volt detection, is crap.
@stephenhagen8976
Жыл бұрын
worked for me. Thanks.
@jf275
Жыл бұрын
Got my 40v dewalt working, took a chance and bought the charger, battery and weedeater for 48 dollars. Now it's value has tripled :P
@Alphasig336
10 ай бұрын
You should see if it actually charges. Seen may after this run for 5 minute and still show charged
@dalebarker510
9 ай бұрын
I've tried this trick many times and never works for me
@user-fx3nf4ui1h
6 ай бұрын
Does not work I hate liars
@luispulido5173
2 ай бұрын
Yeah for me too. It didn't work. Maybe the battery it's beyond tepair 😮
@JarettHerder
2 ай бұрын
@@user-fx3nf4ui1hit does work I literally just did it. 20v 5amp wouldn’t register at all on any of my chargers. I did this for 5 seconds and now it charges.
@JoshthePizzaman
2 ай бұрын
Thank you soo much!!! I brought 3 20v Dewalts back to life. You saved me soo much money!! 1 million thanks! 🎉
@hammerandhome
2 ай бұрын
Thanks , happy it worked for ya !
@iangonzalez9644
3 ай бұрын
worked on 3 of my dead batteries!
@Browneyegang
5 ай бұрын
Am I missing something? What are the positive and negative connecting to from the Dewalt battery?
@hammerandhome
5 ай бұрын
Watch as the video quickly passes by the 2nd batterie. There is a longer version of the video on my channel. This is just a short.
@jojohernandez13
2 ай бұрын
What gauge wire are you using or can you use any wire
@miguelruiz3097
Жыл бұрын
thanks this help to much to meee
@Tinovinni
6 ай бұрын
Same by battery thanks
@JarettHerder
2 ай бұрын
What causes this to be the solution? Is it just so dead that it can’t start charging? I only have 1 60V how could I jump a 60v flex?
@hammerandhome
2 ай бұрын
Yup that’s pretty much it. I used a 20v to do my flex volt.
@JarettHerder
2 ай бұрын
@@hammerandhome Awesome I tried it with 2 5amp 20v and it worked but I was hesitant to use my 5amp to do the 60v. Worked perfect on my 5amp ones! Will save me a few hundred dollars if it works on my 2 dead 60v!
@hammerandhome
2 ай бұрын
@@JarettHerder sweet.
@davidtubat2472
Ай бұрын
Did not work with my AEG18V lithium
@rodjohner7817
10 ай бұрын
I have a 20 volt that 1 lime on the battery lights up but when I put it on the charger it stays solid red DeWalt
@princeekantema9875
7 ай бұрын
Can I replace the cells with lithium cells
@garymorgan938
Жыл бұрын
How long if it's been drained,my Grandson lost it outside. It's not excepting any charge. Im only a Machinist electrical work is another deal. Please help me learn. Thank y'all, I'll follow with my results. Hopefully it will victory ✌️
@hammerandhome
Жыл бұрын
Really it just needs a quick second or two. Then put it on a charger. If it didn’t work than you probably have a damaged cell.
@user-pu5ez4if1x
3 ай бұрын
What gauge of wire is needed. 🤔
@Gollammeister
8 ай бұрын
They meant to only last 3 yrs use then that's it I wouldnt mess with em doing this
@outlaww3002
3 ай бұрын
Where can I get these cables
@hammerandhome
3 ай бұрын
It’s just wire. Any hardware store
@user-sj7md9me9j
Жыл бұрын
Thanks its work
@SacramentoCalifornia-ec9sz
10 ай бұрын
It really works
@alldones.a302
9 ай бұрын
I save one of my batteries flexvolt 9amp thanks
@hammerandhome
8 ай бұрын
👍 awesome
@toddmoss6370
9 күн бұрын
Did not work for me
@bobmackay9281
5 ай бұрын
I tried this it welded the terminals on the battery in under a second
@hammerandhome
5 ай бұрын
Wow! Never heard of that happening. Must have been something wrong with the battery or terminals.
@bobbybonnilla9979
Жыл бұрын
Cmon guys I got like 4 batteries won’t charge now imma have go blow myself w this hack lol thank you
@CitekCitek
8 ай бұрын
Tq friend save money👍👍👍👍
@KeenanWhitman-sv2oe
2 ай бұрын
Hey I've got a go-kart that I eraser go-kart and I'm putting a Segway battery into it I'm not sure how exactly hook it up to make sure the battery is charging
@hammerandhome
2 ай бұрын
Sorry couldn’t tell ya how to do that.
@littleboat888
3 ай бұрын
tried it, did'nt work
@VITAL313
4 ай бұрын
Спасибо, мастер! Сделал как показано, всё стало заряжаться. 😁👍
@bbbnz50
3 ай бұрын
I thought you werent meant to interrupt the charge when it wasnt fully charged
@Helaimiaabdelkarim
2 ай бұрын
Can we connect it directly to 220 volts?
@JarettHerder
2 ай бұрын
Please dont 😮 using a car battery or something below the voltage of the battery maximum. Also make sure ur wire is big enough so it doesn’t melt while ur doing this
@humbertofrias864
Жыл бұрын
Should I be worried about the spark?
@robindavis4404
6 ай бұрын
What if that doesn't work? Is there anything else you can do?
@hammerandhome
6 ай бұрын
Not really, You could replace a cell. But that’s tricky and dangerous. Best to just buy a new one.
@poushaun
11 ай бұрын
Hey brother I have an old Ryobi CDL1802P with 2 dead batteries it was sitting in the box too long and totally forget I had it. How do I revive if both batteries are dead please?
@hammerandhome
11 ай бұрын
Not to sure, but maybe you could use a small 9v battery to give one a bit of juice. I haven’t tried this. So do at your own risk.
@KeenanWhitman-sv2oe
2 ай бұрын
And mine's already taken a charge
@tetrahydrocanibonol
3 ай бұрын
I just use 2 pennies
@mysevencrew3625
11 ай бұрын
nice tq❤❤❤❤
@garygoldsmith3887
2 ай бұрын
Tried doesnt work
@davecichi1123
5 ай бұрын
I looked at this and it looks like your video is only halfway the first parts cut out because it doesn’t show you what you’re setting it on it just shows you you’re hooking it to the Dewalt battery🤔
@hammerandhome
5 ай бұрын
It’s just a short, there is a full video on the page. But if you watch the last half of this video, you can see it’s attached to another batterie.
@RommelEvangelista-to8zn
6 ай бұрын
Did this but it didn't last long
@williammendez6654
9 ай бұрын
Thanks. Fixed my 20v👍🏽
@TylerSmith-qx6uz
Жыл бұрын
Do you think this works for single 18650 batteries?
@Triple_C_RC
11 ай бұрын
I would get an 18650 charger, but yes it's all the same principle. If you take a good charged battery and hook positive to positive and negative to negative it will start charging it. Just don't keep it together very long as explosion can happen when overcharged.
@jjb0894
3 ай бұрын
I tried this on a Milwaukee battery and it didn’t work.
@ja054
Жыл бұрын
What did you use to spark it? Thank you!!!
@APinTheAK
Жыл бұрын
Electricity. The working battery is fully charged, you are essentially forcing the “dead” battery to take some juice from the good battery to where it will have enough to be recognized by the charger.
@jorgeobando8442
11 ай бұрын
Mi batería mala se queda la luz indicadora fija y no carga
@toddmoss6370
9 күн бұрын
NY work
@wesbrewer1791
7 ай бұрын
Tried this and it fried the good battery. U owe me a battery sir
@hammerandhome
7 ай бұрын
Sorry to hear that. Must have crossed your wires. Do at your own risk
@kalijasin
8 ай бұрын
Spark ⚡️ Not good!
@neillorenz5129
10 ай бұрын
This worked for me. Saved me from buying a new one.
@hammerandhome
10 ай бұрын
Excellent!
@terencemerritt
7 ай бұрын
That battery still has yellow light. Not charging
@hammerandhome
7 ай бұрын
Charged up just fine.
@treyonbaird9853
Жыл бұрын
Why is no one showing its now charging before
@user-wk9fb6hf3f
8 ай бұрын
I guess fixed for one time only
@jonkarres2877
10 ай бұрын
Tried jumping my 60v and it sparked like a mofo. No idea what that means ???
@z28black84
Жыл бұрын
Dose that work with 2 different styles
@Triple_C_RC
11 ай бұрын
I would think as long as voltage is the same shouldn't be an issue.
@danariusrobinson5215
7 ай бұрын
A technique from modern world Apocalypce after nuclear war. Hell yeah!!!☢️☢️☢️☢️☢️☢️☢️☢️☢️☢️☢️
@paulstubbings645
10 ай бұрын
Gonna try with 5 ah 60 volts. Only a year old and won’t take a charge.
@poransingh8420
Жыл бұрын
Does this work on the flexvolt batteries?
@hammerandhome
Жыл бұрын
Yup, it worked on one of mine
@user-hn3fp6fg8m
Жыл бұрын
GREAT ADVICE. Newbie questions (don't judge): 1) Will this work with Dewalt's DW9099 (18V) batteries?; 2) Does the wire size matter?; 3) And lastly, is @benshell8662's comment legit: "...dewalt batteries have a fusible link inside then that can blow if they get too hot inside, has happended to me several times. You can take the top cover off and solder it back together and fix it, if this doesn't work"
@dhanaine3009
Жыл бұрын
I tried but it but Didn’t work for my 2 weeks old Dewalt battery .
@hammerandhome
Жыл бұрын
Definitely take it back
@BlackyKekaulua-oj4nf
11 ай бұрын
an if it dount work then what do I do
@hammerandhome
11 ай бұрын
Buy a new one unfortunately
@muskieluver
9 ай бұрын
You never say what the wires are connected to is it car battery charger?
@hammerandhome
9 ай бұрын
If you watch the whole video, you can see it’s attached to another Dewalt battery.
@davidmoret3380
Жыл бұрын
Je n'ai pas compris pourquoi tu fais ça. Il n'y a pas de sous-titres en français. J'ai un problème avec une batterie DeWalt flexvolt de 9ah qui ne charge que de 1/3 . Pourrais tu m'expliquer ? Je peux traduire les commentaires
@radoslavsismic9046
7 ай бұрын
Presne tento problém mám aj ja s Dewalt flexvolt 12 Ah nabije sa iba na 1/3 kapacity a funguje iba ako 18V batéria vôbec nefunguje na 54V
@KamranRulez2020
8 ай бұрын
Can this work on an Airsoft battery?
@hammerandhome
8 ай бұрын
Not sure, theoretically yes. But I’ve never tried on one.
@user-kr5sb8up4m
8 ай бұрын
Those are lithium polymer so probably not. If it’s got 18650 liphfe batteries then jump it with 4 volt or from a parallel 18650 in 4 volts the batteries inside this unit are 18650 in series parallel 4.2x4
@JetEngine85
10 ай бұрын
Didn't work for me.. I guess I'm just unlucky
@riotintomaršsadrine
Жыл бұрын
It is temporary solution only. Once battery was dead, you must buy new one or repair it. It will never be the same again.
@riseinmylevis
10 ай бұрын
Ok that just shows me two wires connected… From where🤷🏼♂️
@hammerandhome
10 ай бұрын
If you watch the video you can see it’s connected to another battery. Positive to positive and negative to Negative. It’s a short from a longer video I did. Do at your own risk. Batteries are dangerous. Hope that clarifies it a bit
@aristondarmayuda1451
10 ай бұрын
@@hammerandhome it's like car jumper. nice done, at first I thought the BMS is on the battery to prevent over discharge but it's look like there's no BMS in the battery pack to prevent the battery for over drain. in my case I use the battery direct (+ and -) to power tool and it over drain cause the voltage deplete to 5V and the battery won't charge. that's strange it just work by jump start using other similar battery.
@dunnrite8299
Жыл бұрын
What u hook it up too 👀🤦🏿♂️
@hammerandhome
Жыл бұрын
Another battery
@user-ed5ns2jy4y
10 ай бұрын
🎉 класс, всё работает
@johnviera3884
7 ай бұрын
let’s take a poll did this work? no
@yasoutherncousin
7 ай бұрын
It worked for me
@johnviera3884
7 ай бұрын
@@yasoutherncousin i guess the voltage has to be right under 18 volts but over 17 volts.
@user-kr5sb8up4m
8 ай бұрын
Really that’s it huh- this is when you feel like a dumb ass when something is so simple to fix wow
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