HKD 3S Lithium Battery Charger/Protection BMS Board 12.6V 10A

The HKD 3S Lithium Battery Charger/Protection Board is designed for safe charging and discharging of 3S Li-Ion/Lithium battery packs (including 18650, 26650, and polymer lithium cells). Supporting a charge voltage of 12.6V-13.0V, this BMS module provides overcharge, over-discharge, overcurrent, and short-circuit protection to extend battery life and ensure reliable operation. A suitable heatsink is recommended for higher current applications.

This board requires at least 3 batteries in series to operate and will not function with fewer cells. Perfect for DIY battery packs, drills, and other portable electronic devices.

Features:

• Suitable for 3S Li-Ion/Lithium batteries (3.6V / 3.7V cells)
• Works with 18650, 26650, and polymer lithium batteries
• Overcharge, over-discharge, and short-circuit protection
• Balance charging supported for safer operation
• Lightweight and compact design

Specifications:

• Product Size: 59 × 20 × 3.4mm
• Weight: 4.3g
• Charging Voltage: 12.6V - 13.0V
• Continuous Charge Current: 10A
• Continuous Discharge Current: 20A (reduce if cooling is poor)
• Standard Edition: Start current <40A, power <65W
• Enhanced Version: Start current <60A, power <100W

What's in the box
1 x HKD 3S Lithium Battery Charger/Protection BMS Board 12.6V 10A