Originally posted by WMBP So what's wrong with those rechargeable AA batteries, if anything? I have some CRV3s in my bag as backups, but I have not needed 'em yet.
One problem appears to be a quality control issue on a few K100D's where they would shut down for low battery too soon, so we see some complaints about AA performance in forum. I think it's rare though, but it makes some people worry needlessly. .
Another problem is people (like me) who find that none of their older nimH AA's will power up a K100D. Only new ones seems to work. On reflection, I realized of that my many of my older batteries are more like 1800 and 1600 maH, unlike the 2500 and 2700 maH batteries I recently purchased. So these batteries might run my old Nikon Coolpix, but not the K100D., but what do we expect with batteries that small and so old.
NimH batteries do lose capacity as they go thru a bunch of cycles. The jury is still out on how long the newer ones will last. I think the Eneloops and Rayovac hybrids sound good though. I had some Eneloops, but I lost them.
FInally, the one time use lithum CRV3's and regulated RCRV3's will supply almost 20% more voltage as a pair will be about 6 volts, whereas 4 nimH's will be 5-5.2 volts. That means faster AF. I plan to migrate to regulated rechargeable CRV3's. and get some one time CRV3's too when Walgreens has another sale. I am leery of unregulated RCRV3's which will pump out 8.4 volts and possibly fry the camera flash circuit.
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