I have a similar issue with my iSt DL2. When I first bought the camera, I could get several hundred shots from a single charge. Then suddenly, it went down to about 10 shots and shortly after, it went to nothing at all. No matter what batteries I put in, I just get the battery depleted symbol immediately.

I took it to a local shop recently, and they examined it and told me they could find no reason why it should be draining batteries. I told them (as I told them when I dropped it off) that it isn't draining the batteries - the batteries are fine - it's just the camera thinks they're flat. They just shrugged and weren't interested, so I walked away.

I've tried cleaning the contacts, pulling out the contacts, cleaning them with alcohol and rubbing them with a graphite pencil, none of which worked.

If anyone does know a remedy, I'd be very interested to read it, please.

I'm still having this problem with my DL2. It doesn't matter what type of batteries I use, whether they be rechargable or Energizer Ultimate Lithium. I've even tried cleaning the contacts and using a graphite pencil on them, but I still get only 2 or 3 shots before the camera tells me that the battery is depleted.

I'm very close to just throwing it in the bin, I'm so frustrated, particularly on the day I'd travelled 60 miles to photograph a steam loco, and had taken 8 (yes, eight) fully-charged sets of batteries with me, and I wasn't able to take a single shot. When I got home, I checked the batteries and they were all fine.