20V 2.0Ah Li-ion Replacement Battery for Cordless Tools

18.5V / 21V Ternary Lithium Battery Pack (5S2P) — High-reliability 10-cell configuration designed for consistent power output. Fully customizable in connectors and layouts for seamless device integration. 5S2P Multi-Cell Configuration: Built with ten premium ternary lithium cells, optimized for balance, low thermal rise, and stable voltage under load. True Capacity Standard: Verified via standard testing procedures to deliver accurate, non-inflated runtime metrics for demanding equipment. Integrated Safety Circuit: Features built-in protection against over-charge, over-discharge, over-current, and temperature faults with auto-recovery. Long Cycle Life (1000 Cycles): Precision-engineered to deliver up to 1000 charge-discharge cycles under standard operating conditions.