3S 11.1V 20A BMS 18650 Lithium Battery Protection Board Suitable for Drill Tools

The 3S 11.1V 20A BMS 18650 Lithium Battery Protection Board, model 1031-3SMT, is designed to ensure the safety and efficiency of your 3-series Li-ion battery packs, making it ideal for drill tools and similar applications. With a nominal voltage of 12V, this protection board offers a range of safety features including overcharge, over-discharge, short circuit, and over-current protection. It supports a maximum operating current of 9A and a peak instantaneous current of 20A. The compact design (33 x 33 x 1.6 mm) and low internal resistance make it a reliable and efficient choice for various power tools.

Specifications of 3S 11.1V 20A BMS 18650 Lithium Battery Protection Board

• Model: 1031-3SMT

• Nominal Voltage: 12V

• Operation Voltage: 11.1V

• Operation Current:

  • Maximum Operating Current: 7-9A

  • Maximum Instantaneous Current: 15-20A

• Quiescent Current: <20uA

• Internal Resistance: <30mΩ

• Overcharge Voltage Range: 4.275V±0.035V

• Over-discharge Voltage Range: 2.750V±0.08V

• Overcharge Recovery Voltage: 4.075V±0.1V

• Over-discharge Recovery Voltage: 2.9V±0.08V

• Working Temperature: -40℃ to 80℃

• Short Circuit Protection: Yes, with automatic recovery

• Dimensions: 33 x 33 x 1.6 mm

• Color: Green

• Functions: Overcharge protection, over-discharge protection, short circuit protection, over-current protection