5S 18.5V / 21V 25A Lithium-Ion Power Tool BMS Protection Board

5S 18.5V / 21V 25A Power Tool BMS Protection Board

The standard BMS replacement board for 18V-21V cordless power tool battery packs (Makita/DeWalt compatible form factor). Handles heavy motor startup in-rush currents without tripping.

Specifications

• Configuration: 5S (5 series cells: 18.5V nominal, 21.0V full charge)
• Discharge Current: 25 Amperes continuous (Peak: 60A)
• Short-Circuit Delay: 250 μs auto-recovery
• Designed for 21V cordless drills, reciprocating saws, and blowers