The EGO Power + 2.0 Ah 56 volt lithium ion battery fits all the EGO Power Plus cordless gardening tools & has a built in fuel gauge to show how much charge it has left to run. The EGO ' Keep Cool' technology keeps each battery cell cool which extends the overall life of the battery. These EGO Power Plus batteries provide up to 40% more power than a leading 40v battery.EGO Power Plus 2.0 Ah Battery Features 40 minutes charge time with the standard EGO Power + charger & 25 minutes with the EGO Power + Infinity fast charger Warranty: Manufacturer's 3 year