Charges batteries in 1 to 2.5 Hours with 4000 mW charge power (To approx. 90 percent of full charge when using 1300mAh up to 2400mAh (included) 2xAA NiMH batteries. Based on charging AA batteries.)

It recharges any rechargeable AA and AAA NiMH batteries from any brand

LED Charge Status Indicator shows when charging is complete and Auto Shutoff when batteries are charged

This battery charger works with all rechargeable AA and AAA NiMH batteries

The Duracell Ion Speed 4000 Battery Charger charges 2 or 4 batteries at a time