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

WH-3811A27 2S 4A BMS

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
• -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)