Description
4PCS 4S 40A Li-ion Lithium Battery BMS Protection Board with Balance Charger 14.8V/16.8V PCB Module Featuring Over-Current and Temperature Protection for Drill Motors and Power Tools
View AllClose
- Built-in protection:The 4S 40A lithium battery protection board has three layers of protection device, with over-discharge/over-current/overcharge protection, so that the drilling rig and motorcycle battery can operate within the peak voltage range
- Efficient power management:This BMS PCB module is designed with high-precision voltage detection circuitry and MOS transistor control to maintain a stable 16.8V output and low standby power consumption
- Compact Heavy-Duty Design:Precision welding technology provides a stable connection for 4 strings of protective plates, supporting 135W power tools and polymer lithium batteries (18650/26650) in space-constrained installations.
- Smart Balance Charging Technology:The 16.8V charging circuit automatically monitors 4 lithium battery packs, optimizing performance across charge-discharge cycles.
- Multi-Application Compatibility:Compatible with electric drills (≤80A starting current) and motorcycle batteries, Support 3.7V/4.2V lithium-ion battery
