Wall charger recharges AA or AAA rechargeable batteries, up to four at a time. A series of beeps indicate when charging starts and when batteries are fully charged, maximizing battery performance and ensuring a full charge every time. A second series of beeps indicate that the battery in the charger has reached its full charge. Battery Type: NiMH
Battery Size: AA
AAA
Charge Time: 3 hrs.
Unit of Measure : Each