2S 8A 8.4V BMS 18650 Lithium Battery Protection Board

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Sold By: HatchnHackSKU: B19-52

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BMS (Battery Management System) is designed to monitor the status of batteries, control the charging/discharging process, etc. Two 18650 batteries can be connected to the 2S BMS 8A charge-discharge controller module at the same time.
The module has short-circuit, overcharge, and over-discharge protection. One of the charge controller's functions is to turn off the power supply to the batteries when at least one battery reaches its maximum capacity.

This BMS controller is designed for more than 50,000 hours of operation. The maximum allowable current is 8 A. If the maximum permissible supply voltage value is exceeded, the charge controller enters “protection” mode.

To restore the module, either reapply voltage to the BMS board's input or wait until the charge controller automatically disables protection. A step-up voltage converter with a current limiter can be used to charge. Please note this module is not a charger.

Parameter Value
Model 2S BMS 8A
Over Charge Voltage Range 4.25-4.35 V ± 0.05 V
Over Discharge Voltage Range 2.5-3.0 V ± 0.05 V
Max. Operating Current 8 A
Max. Peak Current 15 A
Charging Voltage 8.4 V -9 V
Quiescent Current Lower than 10 µA
Internal Resistance <300 mOhm
Operating Temperature -40°C to +50°C
Size 40.5 x 15.6 x 3.5 mm
Country of Origin China

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