5Pcs BMS 5S 21V 18650 Li-Ion Lithium Battery Protection Board PCM Polymer Lipo Cell Circuit Charging Board Module

The battery has superior quality with protecting circuit to prevent overcharge, over-discharge, over-voltage, and short circuit, extend life.
This protection board adopts mature protection circuit, special IC, imported high current ultra low internal resistance MOS and has perfect and stable charging and discharging protection functions.
Small volume and large current can be used in high current applications such as power tools and aircraft models.B-, C- line should be connected with thick wires, and ensure that the pads are soldered correctly with the positive and negative terminals of the corresponding equipment.
Before installing the protection board, the battery must be matched well (the voltage difference between each battery is not higher than 0.05V, the internal resistance is not more than 5mΩ, the difference of the capacitance is less than 30mAh), the better the battery consistency, the longer the battery life, and the best performance of the protection board.
This protective plate cannot be used for lithium iron phosphate batteries. Lithium battery protection board is strictly prohibited to be used in series.

Colour:red
Material:plastic

Package Contents:
5 * BMS 5S 21V 18650 Li-ion Lithium Battery Protection Board

Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.