AA/AAA battery charger with Duracell Ion Speed technologyFully charges any brand of NiMH battery in approximately 1-2.5 hours* (*To approx. 85% of full charge when using 1300mAh up to 2500mAh 2xAA NiMH Batteries)Charges with 4000 mW of charging power, based on charging AA batteriesCharger includes convenient features like LED status indicator and auto-shutoff capabilityIncludes bad-battery indicator with 9 smart safety featuresNiMH battery charger comes with 2 Duracell AA and 2 Duracell AAA Rechargeable BatteriesCompatible with both Double A batteries and Triple A batteriesCan charge 2 or 4 batteries at a time