For non-balanced rechargeable lithium battery pack, the charge balance makes the battery pack in the battery pack at the same time fully charged.
Product Size:26 * 20.5 * 2.4mm
The balance sheet does not charge and discharge protection function, can not replace the protection board, when the battery is charged, the first fully charged battery through the resistance discharge, when the split equalization.
B-:Connect the negative of the battery pack
B1:Connect the battery 1 to the contacts in battery 2
B2:Connect the battery 2 to the contacts in battery 3
B3:Connect the battery 3 to the contacts in battery 4
B4:Connect the positive of the battery pack
3 x 4S 14.8V/16.8V 18650 Polymer Lithium Battery Protection Board
3pcs 4S 14.8V/16.8V 18650 Polymer Lithium Battery Protection Board Balanced Function Discharge Shunt Balance 4.2V 66mA
Shipping:Standard Shipping about 10-25 business days