Does Canon PowerShot SX120 IS only operate on AA battery ? Just purchased Canon PowerShot SX120 IS, only see 2 AA battery, but there is no cable for direct charge. Not sure if need purchase that separately or this model only operates on battery power?
I use the excellent Eneloop AA NiMH rechargeable battery in all our AA-using cameras (Canon PowerShots and Lumix) and have no complaints. The Sanyo chargers sold with Eneloop cells are good; the Duracell CEF23 charger and the LaCrosse BC-700 charger/tester are both excellent.
"Direct charge" (charging a camera's battery while it's still in the camera) ties up the camera during the charge process, and it is a system to be avoided if at all possible.
All of our cameras have aux power in jacks or aux power in adapters. These are used for tethered shooting or with external battery packs. Few users need this feature, but it can be useful for things like time-lapse photography and lengthy continuous video.