Griot's Garage 12V Lithium-Ion Battery The 12V Lithium-Ion Battery optimizes runtime and is the perfect match for THE Boss Hybrid Micro Polisher, along with all future 12V Griot's Garage Power Tools. Consisting of premium cells, the batteries are on par with advanced technology of today, and guarantee stellar performance. An integrated LED Gauge indicates the state of charge for uncomplicated monitoring. Charging is swift and uncomplicated with the Griot's Garage 12V/20V Smart Charger, finishing within an hour. For continuous, interruption-free polishing, it is suggested to have three batteries in cycle. Prepare for an incessant flow of polishing power! Features: Lithium-Ion, 2.5Ah premium cells for long run times Integrated LED gauge communicates charge status Quick connect attachment makes swapping batteries a breeze Created from impact-resistant nylon for toughness