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, Height 1.83 in, Overall Height 1.87 in, Width 1 in, Depth 0.65 in, Standard Battery Series Recharge.
eBay