Fully equipped with an upgraded fuel gauge, the built-in indicator lights lets you see how much run time you have left. With 5 segments wrapping the power button, you can now see how much battery power you have left in 20% increments. The ARC Lithium battery technology is the industry’s most advanced; equipped with patented Keep Cool Cell Technology; which keeps the cells cool and prolongs the life of the battery. ** BA5600T does not fit into the 49cm mower (LM2001E). - Features10. - Upgraded fuel gauge to show how much run time is remaining – 20% increments - Patented power management system to protect your battery & enhance the life - Charges in 70 minutes with the Rapid Charger - Charges in 190 minutes with the EGO POWER+ standard charger - Compatible with all EGO tools (Except 49cm Mower LM2001E)ARC Lithium: Industry’s most advanced battery technologySpecificationsVoltage56VAmp Hours10.0Ah - Battery Weight3.5kg