Bosch 12V Max Lithium-Ion Battery & Charger Starter Kit lets you build your own 12V Max combo kit or expand your current system with ease. This starter kit includes the 12V Max Lithium-Ion 2.0 Ah Battery and the 12V-20 12V Max Charger, designed to be compatible with all Bosch 12V Max Lithium-Ion batteries. The charger powers batteries fully in just one hour and features an indicator light that signals fast-charging mode, long-life mode, charging status, and pending charge due to high temperatures. This combo set performs reliably in temperatures as low as -4° F and is lightweight for easy portability, making it a addition to your toolkit. Model Number: GXS12V-01N12