Features:
1.High precision
2.large current
3.Low fever
4.Compact size
5.Suitable for lithium batteries with a nominal voltage of 3.7V and a fully charged 4.2V (including 18650 26650 polymer lithium batteries), capable of carrying electric drills up to 170W

Scope of application: Suitable for lithium batteries with a nominal voltage of 3.7V and a full voltage of 4.2V (including 18650, 26650, polymer lithium batteries, without any size restrictions)
Product size: 41*55*3.4mm (enhanced version)
Product weight: 8.8g (enhanced version)
Charging voltage: 12.6V - 13.6V
Continuous discharge current (upper limit): 40A (If the heat dissipation environment is not good, please reduce the load current)
Continuous charging current (upper limit): 20A
Enhanced version: Suitable for electric drills with a starting current of less than 80A and a power of less than 130W.

¡¤ Reliable Protection for 3S Li-ion Batteries

Designed for 18650 battery packs, this 3S 40A protection board provides overcharge, overdischarge, and short circuit protection, ensuring battery safety and extended lifespan.

¡¤ Enhanced and Balanced Versions for Optimal Performance

Choose between enhanced and balanced versions, featuring balance charging and stable power output, ideal for high-drain devices like drill motors and other DIY projects.