The EGO 56-Volt Battery 7.5 Ah delivers the longest run time of any EGO Power+ battery. EGO Power+ batteries deliver long-lasting power, rapid charging and durability in all weather conditions. The unique arc design keeps each cell cool for long life and hard work in the most extreme conditions. EGO Power+ batteries provide Power Beyond Belief to EGO outdoor power equipment. Power management system protects the battery pack from the most harmful elements a battery can face from overheating to over-discharging Integrated fuel gauge to let you know how much power is left in your battery Charges in 60 minutes with EGO power+ rapid charger Compatible with all EGO power+ outdoor power equipment and chargers