BQ-CC75-AA: Smart Charger & 4 x AA eneloop 2000mAh NiMH cells. Replaces and upgrades previous # BQ-CC17. The BQ-CC75 Charger plugs into 100-240VAC wall outlet. Smart-charges 1, 2, 3 or 4 batteries at a time. Safe, smart, with automatic shut off. Has LED charge status indicator lights. The ENELOOP battery cells that come with this package are PRE-CHARGED and READY TO USE. The BQ-CC75 can also be used to charge any other 1.2v Ni-MH AA and 1.2v Ni-MH AAA battery cells. This charger also has a built-in USB2.0 1A charge port on the side; you can charge your mobile devices from this output!