Charging Voltage: 4.2V;
Maximum Working Current: 4A;
High quality: high-accuracy voltage detection circuit, fine workmanship and durable;
Multiple protection: Overdischarge protection, Overcharge protection, Overcurrent, Short circuit protection;
Wiring instruction:
B+: Battery V+ Positive, B-: Battery V- Negative, P+: Output / Charging V+, P-: Output / Charging V-; Use for variety of capacities and various shapes Massager battery pack, LED lamp backup power supply, solar street lamp battery pack, monitoring backup power supply, etc