BAT609 5.0Ah Replacement for Bosch 18V Battery GBA Compatible with BAT619G BAT619 BAT609G BAT618 BAT618G BAT610G Cordless Tool Packs Lithium-Ion Rechargeable

🔄 SEAMLESS 18V COMPATIBILITY: Replacement battery for Bosch 18V Professional system (BAT609, BAT618 & GBA series). Slides smoothly into your 18V "Blue" power tools and original chargers without jamming. (Note: Not compatible with the "Green" Home & Garden tool series). 🔋 5.0Ah CAPACITY: Built with a genuine 10-cell 18650 array . Delivers 5000mAh runtime—just raw power for heavy cuts. ⚡ 20A CONTINUOUS OUTPUT: Built for tough jobs. Delivers a stable 20A current to power through high-torque drilling and grinding without stalling or thermal cutoffs. ❄️ THICKENED NICKEL STRIPS: High power demands low resistance. Upgraded internal connections drastically reduce heat buildup, ensuring cooler operation on the job site. 🛡️ INDEPENDENT HARDWARE BMS: Features a standalone built-in chip that actively prevents over-charge, deep-discharge, and shorts—protecting your tools reliably without complex protocols. ⚖️ OPTIMIZED 595g BALANCE: Weighing exactly 595g, it hits the sweet spot between heavy-duty performance and ergonomic comfort, saving your wrist during overhead work.