DC 9V 4A 2S Lithium Battery Protection Board Li-ion Cell With Balanced Charging

Specifications:Size: 43*10*2.5mmCharging voltage: DC 9VCurrent: 4ABalance: YESFeatures:Built-in high-precision voltage detection circuit.Connect the terminals of the charger with high withstand voltage devices.Built-in three overcurrent detection circuit (overcurrent 1, overcurrent 2, load short circuit).Through the MOS tube can control the current charge and discharge.Wide operating temperature range: -40 ℃ ~ +50 ℃.Low current consumption.Description Of Welding Points:B+: Connect the battery positiveB-: Connect the battery negativeMB: Connect the contacts in Battery 1 and Battery 2P+: Connect / discharge side positive (shared with the charging side and the discharge side)P-: Receiver / Discharge terminal negative (shared with the charging side and the discharge side)Note: Due to the manual measurement, there might be some errors, please understand.Package included:1 x lithium battery protection board