Ansmann MAX E "D" low self-discharge rechargeable battery. Precharged cell! Unwrap, insert and ready for use. More than 1 year stand-by without recharging. Use anywhere you would use a D alkaline including toys, radios, and any portable electronic device. High-capacity 8500 mah. Recharge up to 1000x. No special charger required. 2 year warranty.