Key features Ready to use, rechargeable up to 1,000 times and without memory effect. Minimum self-discharge index: 25 times smaller than regular rechargeable batteries. Keep aprox 85% of the charge after one year without use. Recyclable: more ecological and greater savings. Improved performance at low temperatures. Includes practicle USB charger and tester keyring. Product specifications Alkaline + Battery Up to 1,000 recharge/discharge cycles. Capacity: 2100 mAh. Type: R6 AA. Composition: Ni-MH (Nickel-Metal Hydride). Low internal resistance (perfect for digital devices). Improved performance at low temperatures. Voltage: 1.2 V.