Duracell® ION SPEED™ 4000 Hi-Performance Charger

Offers amazingly fast charge times of 1-2.5 hours (to approx. 85% of full charge when using 1300mAh up to 2500mAh 2xAA NiMH batteries, included) with 4000 mW of charging power (based on charging AA batteries). It recharges any rechargeable AA and AAA NiMH batteries from any brand. You can recharge 2 or 4 batteries at a time and, with the LED Charge Status Indicator, you’ll know when charging is complete. It also features an Auto Shutoff so you won’t use any unnecessary electricity. It even has a bad-battery indicator along with 9 smart safety features. Batteries are guaranteed to last 10 years, or 400 recharges, whichever comes first.