EGO-BA2800T POWER + 5.0Ah Battery with Fuel Gauge BA2800T

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).