Bosch, 12 Volt, Max Lithium-Ion Battery and Charger Starter Kit. Convenient Bosch Lithium-ion 12V Max battery and charger kit delivers professional power in a compact package to the jobsite. Outstanding 12V Max battery performance designed to efficiently power tools, with a light, portable 12V Max battery pack. Advanced charger design with 80/20 dual-mode charging, indicator lights and compatibility with Bosch 12V Max Li-ion batteries. Longer battery runtime engineered to deliver up to 50% more runtime than previous-generation 12V Max 1.3 Ah batteries, at the same weight. Fast-charging operation fully charges a spent 12V Max 2.0 Ah Lithium-ion battery in approximately one hour. Regulated dual-mode charging designed to securely charge the battery fast; the first 80% of the charge is very fast, the remaining 20% is at the normal rate. Battery-status indicator provides indication if charger is in fast-charging mode or long-life mode, and when charging begin.