Rechargeable Battery, Battery Size 9V, Battery Chemistry Nickel-Metal Hydride, Voltage - Batteries 8.4V DC, Recharge Time 8 hr, Capacity - Batteries 175 mAh, Shelf Life 3 yr, Rechargeable Up To 300 Times, Precharged Yes, Max. Operating Temp. 122 Degrees F, Min. Operating Temp. 32 Degrees F, Standard Battery Pack Size 1, Standards ANSI- 7.2H 5, Height 1.8 in, Overall Height 1.9 in, Width 1 in, Depth 0.7 in, Standard Battery Series Recharge. This item has been restricted from sale in the following state (s): []