18V Cordless battery Increased run-time with 40% less weight than an 18V NiCad battery Milwaukee digital power management Temperature management extends pack life Overload current control Prevents pack and tool burn-up Cell voltage monitoring - optimizes run-time and pack- life Battery fuel gauge displays remaining run-time 5 year, 2,000 charge warranty For use with the following M18 tools: Ace nos. 2198273, 2198281, 2198265 & 2199412
