20V and 60V Max 12.0 Ah Lithium-Ion Flexvolt Battery

The FLEXVOLT 12.0 Ah Battery provides up to 8X runtime** in 20V MAX and delivers ultimate power in 60V MAX* and 120V MAX* cordless tools. It changes voltage when you go from 20V MAX* to 60V MAX* tools. Lithium Ion technology delivers performance in the same size as our 9.0 Ah Battery, so it is more powerful in as compact a package as possible. It also includes a built-in LED Fuel Gauge for instant charge status, and is compatible with all 20V MAX* tools and chargers.