Is 1 2 AA the same as cr2?
The battery marked as 1/2AA is a 3.6 volt Lithium and the battery is listed for use with Macs. The CR2 Lithium battery is a 3.0 Lithium battery and is the same physical size.Similarly, it is asked, can I use a cr123 instead of a cr2?A: cr123 battery are 34.5mm long vs cr2 battery at 27mm. both may b...