1S 3.7V BMS 2A 1 Cell 18650 Lithium Battery Charging Protection Board Battery Management System 4.2V charging voltage

Specification: Over charge detection voltage: 4.3±0.05V Over discharge detection voltage: 2.5±0.1V  Over current detection voltage: 0.015±0.03V Suitable for: 18650 Li-Ion battery  Over current detection current: 2～6A;