AA Battery Specifications: Capacity: 2900 mAh Chemistry: Nickel Metal Hydride (NiMH) Voltage: 1.2V Brand: Accupower Included Qty: 8 AAA Battery Specifications: Capacity: 1200 mAh Chemistry: Nickel Metal Hydride (NiMH) Voltage: 1.2V Brand: Accupower Included Qty: 8 C Battery Specifications: Capacity: 6000 mAh Chemistry: Nickel Metal Hydride (NiMH) Voltage: 1.2V Brand: Accupower Included Qty: 4 D Battery Specifications: Capacity: 12000 mAh Chemistry: Nickel Metal Hydride (NiMH) Voltage: 1.2V Brand: Accupower Included Qty: 4 Features: No memory effect Reliable service life Long-Lasting Performance Recharges up to 1000 Cycles