Mouse and keyboard devices and wireless losing charge quickly battery USB draining energy

I have an iMac with keyboard and wireless mouse (OS X 10.6.8).) Recently, I'll have to replace the AA batteries on an almost daily basis. Anyone have any ideas? I use rechargeable batteries and they are new, so not down for used batteries.

If I try to connect a camera to download images, I get a message from time to time as the USB devices will cut as drain too much energy - other than the camera I have not all connected USB devices.

Reset the SMC can help with the problem USB reset management system (SCM) controller on your Mac - Apple Support

Tags: Mac

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