<p>The 5.0 Ah ARC Lithium Battery is equipped with an fuel gauge. The built-in indicator lights lets you see how much run time you have left, and The ARC Lithium battery technology is the industry's most advanced, equipped with patented Keep Cool Cell Technology, and which keeps the cells cool and prolongs the life of the battery. (Charger sold separately).</p> EGO-BA2800T POWER Battery with Fuel Gauge (BA2800T), 5.0Ah Keep Cool Technology that helps to extend the battery run time and cycle life Patented power management system to protect your battery and enhance its life Compatible with all EGO POWER+ products and chargers Arclithium: Industry's most advanced battery technology Builtin indicator lights show remaining run time Volts 56 V Battery capacity 10 Ah Compatibility EGO Compatible models EGO POWER+ Brand EGO Works with Android OS 7+, iOS 14+, 2.4 Ghz Wifi Model BA2800T Model name BA2800T Accessories No Weight 5.00 lbs Height 10.8 Manufacturer EGO Has nrtl listing certification N Retail packaging Single Piece