The ECHO eFORCE 56V 2.5Ah battery uses eCM Technology that provides heat, charge and discharge management to maximize the life of the battery. It's compatible with all ECHO eFORCE 56V Battery System. Battery charges in as little as 38 minutes when using the ECHO eFORCE 56V Rapid Charger.. Battery Amp Hours: 2.5. Battery Voltage (V): 56V. Fits Brands: ECHO eFORCE 56V Battery System. Fits Models: ECHO eFORCE 56V Battery System. Number of Batteries Included: 1. Part Type: Cordless Battery. Returnable: 90-Day. Used with Equipment Type: Blower,Brush Cutter,Chainsaw,Hedge Trimmer,Trimmer,Walk Behind Mower. Product Depth (in.): 7.24 in. Product Height (in.): 2.85 in. Product Width (in.): 3.46 in. Battery Voltage (V): 56V. Battery Amp Hours: 2.5. Used with Equipment Type: Blower. Used with Equipment Type: Hedge Trimmer. Used with Equipment Type: Walk Behind Mower. Used with Equipment Type: Chainsaw