This charger allows to recharge AA HR6 batteries with a capacity of 1300mAh in 1 hour. The loader accepts all standard formats: 1 to 4 AA HR6 / 1 to 4 AAA HR3 / 1 to 4 C HR14 / 1 to 4 D HR20 / 1x 9V HR9.LED display : red LED = charging / green LED = charging / red flashing LED = error. Voltage accepted: 100-240V for international use. Automatic stop of charge at the end of the cycle, verification of non-rechargeable primary batteries, Anti-overheating circuit breaker, protection against reversal of polarities. there are no batteries in the article.