Product details of 2PCS 9V Battery Double Charge

Double Charge Heavy Duty Battery Multi Purpose – PPMP
Nominal voltage: 9 V
Impedance: 1,700 m-ohm @ 1 kHz
Typical weight: 45 g (1.6 oz)
Typical volume: 22.8 cm (1.4 in)
Terminals: Miniature snap
Operating temperature range: -20ºC to 54ºC (-4ºF to 130ºF)