10PCS 2S 7.4V 8.4V 8A Lithium Battery Protection Board 18650 …
The capacity/internal resistance of the 3 batteries should be as close as possible 3.the product must be connected to a 8.4V charging voltage through p+ and p- before it will create voltage on pads.Or you can activate this BMS by momentarily shorting b- and p-Package Included: 10 x 10PCS 2S 7.4V 8.4V 8A Lithium Battery Protection Board …
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