Envie ECR 20 + 4xAA 1000mAh Battery Charger with Rechargeable Battery

Battery capacity of 1000mAh, 1.2V with Ni-Mh cells This charger charges AA/AAA Ni-MH/Ni-Cd rechargeable batteries and charges 2/4 AA/AAA sizes at a time Two LED’s show the charging process of its corresponding slots but will not turn off when fully charged Do not charge the batteries loaded with wrong polarity or dry one