- The smart way to power your tools with a high-quality, compatible replacement battery featuring high capacity for use with power tools such as drills, impact drivers, grinders, screwdrivers, strapping tools, radios, hand saws, or lawn trimmers. This battery also works excellently as a spare. Our batteries meet all relevant operational safety requirements.What are the advantages of Li-Ion technology? Lithium-ion batteries are among the most powerful available. Compared to NiMH batteries, they offer lower self-discharge rates and higher energy density. They are not subject to the memory effect and require minimal maintenance, as they do not need periodic full discharges. With proper storage, Li-Ion batteries have a long service life due to their durability and high number of possible charge cycles. Li-Ion batteries are commonly used in high-drain portable devices such as smartphones, laptops, cameras, and power tools. They are also utilized in RC modeling and photovoltaic systems.Package includes: 1 x Battery Specifications: Weight: 70 g Technology: Li-Ion no memory effect Capacity: 2000 mAh Voltage: 4 V Rated energy: 8 Wh Color: Black Number of cells: 1 Dimensions (L x W x H): 7.7 x 3.8 x 3.6 cm Compatible with the following device models: AEG Milwaukee M4, M4 1/4 For guaranteed compatibility, please verify that your current battery is listed. Also fits: AEG / Milwaukee 48-11-0490 - The smart way to ensure high-quality replacement parts and accessories. Designed for extended lifespan of your power tools.