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

Specifications: Size: 43*10*2.5mm Charging voltage: DC 9V Current: 4A Balance: YES Features: 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 positive B-: Connect the battery negative MB: Connect the contacts in Battery 1 and Battery 2 P+: 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