🔋High-Capacity 4.0Ah for Longer Runtime：Upgraded 4.0Ah lithium-ion cells deliver extended run time and consistent power compared to standard 2.0Ah or 3.0Ah batteries—ideal for demanding M12 cordless tools and jobsite use. 🔋Wide Compatibility with M12 12V Tools：Fully compatible with Milwaukee M12 12V cordless power tools and heated jackets, including models 48-11-2420 and 48-11-2440. Works seamlessly with original M12 chargers. (Replacement battery, not OEM) 🔋Reliable Power with No Memory Effect：Advanced lithium-ion technology provides stable output, no memory effect, and low self-discharge, so your battery is ready whenever you need it—even after long storage. 🔋Built-In Protection for Safe Daily Use: Integrated smart chip protects against over-charge, over-discharge, over-current, overheating, and short circuit. Tested to meet FCC, CE, and RoHS standards for dependable performance. 🔋Buy with Confidence：Includes 2 replacement batteries,user manual and is backed by a 12-month warranty and responsive U.S.-based customer support. A cost-effective alternative to OEM batteries without sacrificing performance. Battery Features: Protection against overheat,overload and deep discharge conditions increases battery life No memory effect Battery Specifications: Battery Capacity: 3.0 Ah 4.0 Ah/4000mAh Voltage: 12 V Replacement for Milwaukee: M -12, 48-11-2401, 48-11-2402, 48-11-2420, 48-11-2430, 48-11-2440, 48-11-2460, 48-11-2411, 48-11-2412 Compatible with:(Please search with“Ctrl + F”) 2207-20, 2207-21, 2238-20, 2238-21, 2239-20, 2239-21 2276-20NST, 2276-21, 2276- 21NST, 2277-20, 2277-20NST 2277-21, 2277-21NST, 2290-20, 2290-21, 2310-21, 2311-20 2311-21, 2312-21, 2313-20, 2313-21, 2314-20, 2314-21, 2320 2320-20, 2320-21, 2330, 2331, 2332, 2333, 2401-20, 2401- 22 2402-20, 2402-22, 2403-20, 2403-22, 2404-20, 2404-22, 2410 2410-20,2410-22, 2411- 20, 2411-22, 2415-20, 2415-21, 2420-20 2420-21, 2420-22, 2426-20, 2426-22, 2429-20, 2429-21XC 2432-20, 2432-22, 2446-20, 2446-21XC, 2450-20, 2450-22, 2451 2451-20, 2451-22, 2452-20, 2452-22, 2453-20, 2453-22, 2454-20 2454-22, 2455-20,2455-22, 2456-20, 2456-21, 2457-20, 2457-21 2458-20, 2458-21, 2460-20, 2460-21, 2470, 2470-20, 2470-21, 2471 2471-20, 2471-21, 2471-22, 2590-20, 49-24-0145, 49-24-0146 C12, D C12, DD C12, HZ C12, IC C12, ID C12, IW C12 PC C12, PD C12, PPC C12, WS, JS Note: The Milwaukee battery 12v replacement should be stored in a cool and dry place. Do not put 12 volt milwaukee battery 4.0 ah replacement into water and fire. Do not recharge fully a charged 4ah replacement battery for Milwaukee M-12 red lithium battery. Do not charge our battery 12v for Milwaukee replacment( eg. drill baterias ) immediately after use. Please make sure that the hot Milwaukee battery replacement are cooled down before charging.