General description Milwaukee M18B5 18V 5.0Ah Battery (FUEL) delivers exceptional performance with up to 2.5 times more run time, 20% more power, and double the battery life compared to other Lithium-Ion technologies and previous Milwaukee® battery models. This battery is designed for durability and efficiency, making it an ideal choice for demanding applications. Technical specifications Voltage: 18V Capacity: 5.0Ah Operating temperature: down to -20 °C Other information REDLITHIUM-ION technology with REDLINK™ digital overload protection Individual cell monitoring for optimal charge and discharge Durable metal frame construction with shock responsive separators Water protection to route water away from electronics On-board battery fuel gauge for maximizing run-time efficiency