BMS stands for the battery management system. This is a BMS with 20A current and 14.8V voltage rating to charge 4 cells of Li-ion cell. The module comes with overcharge protection, over-discharge protection, overcurrent protection, and short circuit protection. Features High-accuracy voltage detection circuit Terminal of the charger using high voltage device Built-in three-stage over-current detection circuit Can control the battery charge and over-discharge Low standby current consumption Small size Simple writing, circuit connection, and installation Specification Overcharge voltage range: 4.25V-4.35V±0.05V Over discharge voltage range: 2.3V-3.0V±0.05V Charging voltage: 16.8V to 17V Upper limit working current: 10A Upper limit instantaneous current: 20A Quiescent current: <30µA Internal resistance: 45mΩ Operating temperature range: -50℃ to 50V Storage temperature range: -50℃ to 80℃
