Replacement Milwaukee M18 Battery for Milwaukee 18V 5.0Ah M18B 48-11-1820 48-11-185048-11-1828 48-11-10 Cordless Power Tool Battery 2Packs GERIT BATT Replacement Milwaukee 18 volt lithium ion Batteries have 5.0AH high capacity offering long-lasting performance and durability. Built-in charge indicator displays remaining run-time for less downtime on the job and keeps you up on charge status. Replace m18 18v battery is 100% compatible with your Original electronic device and power up for milwaukee 18 volt tools. (Please use "Ctrl+Fto Compatible model in the Product description ) The new upgraded product has a clear difference from the 5.0ah battery on the market. having not only improved the capacity, but also the performance.providing up to 2X run time, holds a charge 2X longer than 3.0ah batteries. Built-in High quality Cells to provides optimized performance and overload protection using total system communication between tool, battery and charger. Impact-resistant outer case and shock-absorbing inner-liner are engineered to protect your battery from damage when working All of the products are CE FCC,ROHS certified, tested by manufacturer to match OEM products and exported all around the world. GERIT BATT 30 days money back and 1 year manufacturer warranty guarantee Turn on the power, it will not display Charging the battery, the green light flashes The battery full o f charging, it will bright green light If the battery has problem, The red and green lights flash alternately