I just picked up my *Ist in the U.S. I started taking pictures to make sure it works. The first set of batteries, rechargeable NiMH didn't last nearly as long as I thought they should. I put in a freshly recharged set and went on taking pictures. I'm on my fourth set of batteries in the camera and at a party tonight the shutter wouldn't work and the display was flashing. The battery indicator showed them low. They weren't fresh but shouldn't have been used up. I turned the camera off and ten minutes later I thought I'd try and squeeze out a few more shots. The battery reading was fine and I took another twenty shots. For some reason, the camera seems to think the batteries are dead when they're not but if I turn it off it seems to reconsider. I wasn't using the flash, just taking natural light photos. Has anyone heard of something similar happening?
I've experienced that phenomenon several times in various cameras, only once in the *istD. Something is conflicting between the power management circuit in the camera and current production in the battery. I have gotten up to 600 shots with a set of 1800 batteries and a dozen or so with flash with a set of 1600 ones that are nearly new, go figure. I imagine it is a battery thing. I would cycle those batteries a couple times - completely discharge them and charge them again.
I used to have the same problem with my Sanyo 2100mAh. i switched to the Uniross 2300mAh and problem solved. that was using my Ridata 512MB 40X solid state CF. switched to Hitachi 4GB MD (from Muvo2) and now the problem is back. i have learned to live with that though, as it causes no other problem for me except for the faulty battery indication.
If your batteries are new, within their first two charges, do not put to much stock in the performance you are getting. When I got my *ist D the first set of batteries I used was an old set of 2000mah Digipowers, and I was shocked. I got nearly 400 photos, lots of them with flash, and lots and lots of review on the LCD. I recently purchased some Kodak 2100mah batteries and for the first two charges could not get more than 30 pictures in either the camera or flash. They are now on the third charge and seem to be lasting much longer. I have read it takes about 5 charges for them to reach their peak performance. Also, if your batteries have been discharged by sitting in the cupboard, I understand they have to go through this conditioning again. If your batteries are older and have been continually used I might worry.
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