Multiple protection: Over-discharge protection, overcurrent protection, overcharge protection, short circuit protection. 2 MOS : MOS transistor can control the battery charge and discharge, low standby current consumption.the max charge / discharge can reach 5A. WIDELY USE: Use for variety of capacities and various shapes 3.7V lithium batteries,Massager battery pack, LED light backup power supply, solar street light battery pack, monitor standby power supply, etc. Connection instructions: B + connect battery +; B-connected battery -; P + for battery output +; P- for battery output input - . Strictly follow the diagram wiring, do not intentionally short-circuit! After the line is connected, you need to charge first, then there will be output. Connection instructions:
B + connect battery +
B-connected battery -
P + for battery output +
P- for battery output input -

Parameters:
Size: 18 * 3.6mm(Approx.)
Overcharge release voltage: 4.23±0.05V
Overcharge voltage range: 4.25±0.05V
Overdischarge voltage range: 2.54±0.1V
Overcurrent detection current: 2-3 A/ 5-6 A
Main functions: overcharge protection, over discharge protection, short circuit protection, over current protection.

Package Include :
10Pcs 1S Battery Chargers Protection Board with Soldering Strip