It looks like a AA battery, except about ½ as tall. Unlike the AA battery, it has 4x the voltage. It is referred to as the 6 volt photo battery or the 6v camera battery. It has multiple designations. Energizer brand refers to it as size A544.
The most common designations of the 6v camera battery are:
- Size A544
- 4LR44
- L1325
Where to Buy at a Fair Price
Amazon.com
Vinnic L1325 manufacturers a quality 6v battery which is available for $1.00 from reputable vendors including those on Amazon.com.
Menards
Menards offers this battery at a fair price, in store, for only $3.27. The Home Depot does not carry this battery.
- Buy this battery at Menards for $3.27 (as of 8/2013)
Radio Shack Ripoff
DO NOT PAY OVER $4.00 for this camera battery if you do not wish to be ripped off. Rip off resellers include Radio Shack, which wants $8.00 ($7.99) for their version, the Enercell PX28A - A SCAM. Way to stick it to people having difficulty locating this battery.
CVS Pharmacy Ripoff
They actually want nearly $14.00 for this battery! This should be a crime.
Device Examples
Many traditional SLR cameras utilize this battery. For example, the Canon AE-1 Program SLR camera uses this battery. Electronic test equipment uses this battery. For example, the Ideal brand Ethernet wiring tester uses this battery.