The milwaukee m18 hb3 18v cordless high output li-ion battery is a top-performing 3ah power tool battery designed for professionals who demand high performance and reliability on the job site. The milwaukee m12-18 fc 18v multi fast battery charger is a versatile and powerful battery charger designed to charge both m12, m14 and m18 batteries. M18 hb3 features & benefits compatible with all m18 tools in the range drives complete corded replacement on the job site with more run time than ever before durable metal frame battery construction with shock responsive separators individual cell monitoring ensures optimal charge and discharge for maximum life on-board battery fuel gauge helps the user to maximise battery run-time efficiency patented redlink intelligence protects the pack from tough jobsite conditions provides up to 50% more power vs m18 redlithium battery packs runs up to 50% cooler than other m18 redlithium battery packs through heavy applications m18 hb3 specifications battery capacity: 3ah battery type: milwaukee m18 lith-ion battery voltage: 18v system: m18 weight: 0.7Kg m12-18 fc features & benefits m12 redlithium 2 3 4 6ah battery packs recharge in 26 50 52 95min or less m18 redlithium 2 4 5ah battery packs recharge in 26 52 59min or less recharges all m18, m14 and m12 redlithium battery packs recharges in sequence: first in, first to charge resulting in less time needed to manage charging cycles m12-18 fc specifications battery pack capacity: 2.0, 3.0, 4.0, 6...