2S 20A 7,4V 8,4V 18650 Lithium Akku Schutzplatine BMS Balance Version
4,48 €
Note 1: The successful start of power drill requires two 10C-20C power batteries, or four 5C-10C power batteries (ordinary 18650 can not start drill! ; 0V and 8.4V cable, use 2 square mm Above copper wire (cannot use nickel plate!). ).
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