6F22 9V
High grade carbon battery with a much higher performance level comparing with int'l standard as IEC specification.

6F22 9V (PP3) 180Ω, 30min/day (EV=4.8V) ≥ 380min 270Ω, 1h/day (EV=5.4V) ≥ 8.5h 620Ω, 2h/day (EV=5.4V) ≥ 26.0h Length: 24.5 ~ 26.5mm Width: 15.5 ~ 17.5mm Height: 46.5 ~ 48.5mm Weight: ≈ 37g

This high grade carbon zinc battery from Changhong is quality-stable and with a high performance-price ratio. 
The 6F22 battery is usually used in various appliances as electrical toys, smoke detectors, radios, etc., and is with a much higher performance level comparing with international standard as IEC specification.