Protected Battery Making Kit - ali.pub/5ibssg
Protected 3400mAh battery - ali.pub/5ibt0m
Smart universal charger for 4 batteries - ali.pub/5ibt69
(There is also a function of testing the battery - it shows the real capacity. Also can work as a power bank, if you disconnect the power and insert the battery into the right cell)
Негізгі бет Ғылым және технология Briefly about protection in 18650 li-ion batteries.....
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