Got a 2nd hand Camry for our daughter back in December. Battery started playing up (car would not start, then recently the clock kept re-setting to 1:00 every time she turned it off/on). I stuck it on the charger for a few hours (trickle charge) which improved the starting for a short while, but then it went bad again. Swapped the battery with a spare NRMA one I had today & it started well, clock was behaving . I noticed the old one (a Marshall battery) is only a year old (May 2011 date on it)! She drives it probably 5-10 times/week, mostly short trips of just a few kms but the odd 20-40km drive every few weeks, so it's not like it sits idle forever. I looked for glove-box/boot lights not switching off, but the boot light is fine and the entire glove-box light mechanism has been removed (which rang alarm bells - perhaps the batteries had been draining for previous owners and they removed this light thinking it was the cause?) I notice it has one of those (allegedly entirely useless????) electronic anti-corrosion devices on it. Wondering if that could be the problem? Otherwise, I guess it's off to the auto-electrician to get alternator checked, or see if there is some other issue. Any thoughts welcome. Cheers.