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Forum: Pentax K-r 03-02-2012, 12:51 PM  
AA Energizer lithium problems
Posted By Philoslothical
Replies: 35
Views: 7,683
I think it's unlikely that a couple volts more than usual is going to do permanent harm. There must be a limiter of some sort employed, or it wouldn't be safe to use all these battery types in the first place. Then again... some people have reported mirror flop issues being triggered by certain fully charged batteries, so transient issues like that might be possible (but I think with that there was an underlying issue and the battery was just the catalyst for it).

I'd say be cautious with new battery types, but not paranoid.
Forum: Pentax K-r 02-28-2012, 11:23 PM  
AA Energizer lithium problems
Posted By Philoslothical
Replies: 35
Views: 7,683
OK, I've seen reports before of firmware updated being reported by Pentax repair when it wasn't actually done, so you should double check this yourself. Just hold down the menu button when turning the camera on, and it should flash up the version on the LCD. It should be version 1.11.

Other than that, check the contacts on the battery holder, and the contacts in the camera, make sure they're clean. It wouldn't hurt to polish up all the contacts on the holder, just to be sure.

If neither of those things help, I think I'm out of ideas. Sorry.

I'm curious why you want to use disposable lithiums anyway. They're costly, and you'd get much more use out of a set of Eneloops for your AA holder, or just use the Li-Ion battery that comes with the camera. You can also get aftermarket versions of the Li-Ion one for about $7 each on Ebay, and they're just about as good as the $40 official one.
Forum: Pentax K-r 02-28-2012, 10:58 PM  
AA Energizer lithium problems
Posted By Philoslothical
Replies: 35
Views: 7,683
A couple questions: Is your firmware up to date? And, are we talking about disposable lithiums or some kind of rechargeable AA?
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