The 3S 20A 12.6V Battery Management System (BMS) PCB Board is designed to protect and charge 3-series lithium-ion battery packs. It ensures overcharge, over-discharge, and short-circuit protection, making it an essential safety component for battery-powered applications. This lightweight and compact module supports 18650, 26650, and polymer lithium batteries, offering a high discharge capacity of up to 20A. Ideal for DIY battery packs, e-bikes, solar projects, and power banks.

Specifications:

• Supported Battery Type: 3.6V/3.7V Li-ion batteries (18650, 26650, polymer lithium)

• Product Size: 59 × 20 × 3.4mm

• Product Weight: 4.3g

• Charging Voltage: 12.6V - 13.0V

• Continuous Discharge Current: 20A (reduce load if cooling is insufficient)

• Continuous Charge Current: 10A

Package:

1 × 3S 20A 12.6V 18650 Li-ion Lithium Battery Charger BMS Protection PCB Board