A premium quality AA/AAA smart battery charger for NiMH or NiCd rechargeable batteries. Will charge 2 or 4 AA/AAA NiMH or NiCd batteries. Comes with 4 pre-charged NiMH AA 2150mAh batteries. USB output to charge iPods, cell phones, PDA & more. Charges 1-4 AA or AAA batteries as little as 2 hours. Includes 12V auto/solar panel adapter, 100-240 AC adapter. LCD display indicates battery status and also features clock and thermometer functions. Use with PowerFilm 10 Watt (and up) rollable or 10 watt (and up) foldable solar panels. This charger is also recommended for use with 10W to 20W rigid solar panels, just add a female lighter plug as an option when you place your order.