I see many users download my battery tester script. But nobody upload the result. I very interesting to result.
http://chdk.setepontos.com/index.php?topic=2361.msg50743#msg50743 I have GP cells, and Acculoop, and the new formula NIMH, Sanyo Eneloop (HR-3UTGA).
The GP normal NiMH cells used many time, performance now low. Average performance with Acculoop NiMH+, and best the Sanyo's Eneloop (this very new, no long test available)
I think, the camera working time extremely depend on battery quality. The battery internal low resistance very important. Many times used battery internal resistance increased. But different accu manufacturer, different performance.
The charging, discharging method is important. Quick chargers, and normal chargers differ. And i found the not only NiCD cells required the cell format to restore maximum performance.
Best cells working with 2.000Volt end voltage, and the battery low voltage icon displayed only real near emtpy battery. If battery voltage greater than 2,1-2.2volt and low battery warning displayed, your battery not ideal for this camera.
I interest your battery, accu (NiCD, NiMH, low self discharge NiMH, or special battery (for example Lithium based AA cells) performance.