Power up your devices with ease using the PX625A / LR9, V625U Battery. With an output power of 1.55V, you can trust this battery to provide reliable and long-lasting performance. This is a battery that fits many older cameras from the 50's-early 80s. It is a direct replacement for the Mercury px625 1.3v battery - but as it is a slightly higher voltage it will cause some cameras meters to read inaccurately, usually this can be compensated for by adjusting the iso setting of the camera until it is reading accurately at sunny 16 outside. Below is a list of some of the common cameras that use this kind of battery:Canon Canonet QL17Minolta SRT-101Olympus OM-1Pentax SpotmaticNikon F PhotomicNikkormat FTnKonica Autoreflex TYashica TL Electro XMamiya Sekor 1000 DTLFujica ST701Olympus 35 RCMinolta Hi-Matic 7sYashica Minister DRicoh 500GPetri FT EEChinon CXMiranda SensorexZenit EPraktica LTLLeica M5