Sounds like it's not really going into standby... or, put another way, something is running in the background. I'd make sure I carefully blew out the area where the bezel overhangs the screen in case it is similar to the cover getting in the way of the IR problem...
Have you tried doing a pinhole reset, signing out & back in, or a factory reset? I'll bet the battery is not the problem. I'd dump every book out/do the factory reset, put nothing on the reader and try that power test again. Last resort short of returning it to kobo. If it lasts longer I'd carefully add books back to see if one of them is not processing correctly and running the thing down.
If it's not a year old, it's still in warranty, and dead from 3 days in standby is a warranty issue, not expected performance. Don't take "No", for an answer.
Last edited by TechniSol; 09-30-2013 at 09:35 PM.
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