48-11-2401 Milwaukee M12 Lithium-Ion Battery M12 LITHIUM-ION cordless tool battery. LITHIUM-ION batteries deliver longer life and run-time with fade-free power. Ergonomic, compact, and lightweight design for operator comfort. For Use with Milwaukee M12 Tools and Accessories. Features:•  Li-ion Manganese Chemistry – provides “Fade-Free” power until end of charge•  Compatible with Milwaukee Cordless M12 tools•  Lightweight- Over 65% lighter vs."compact" NiCd Batteries•  Compact- Over 50% Smaller vs. "compact" NiCd Batteries•  Ergonomic- compact, and lightweight design for operator comfort•  LITHIUM-ION battery delivers longer life and run-time with fade-free powerSpecifications:•  Voltage: 12V•  Battery Type: LITHIUM-ION •  Warranty: 2 years • Weight: .4 lbs