What is the longest lasting rechargeable batteries for a digital camera?

I've happily been using "nickel metal hydride" (commonly abbreviated NiMH) "double A" AA rechargeable batteries in my three digital cameras for several years. They take a mess of pictures, and have saved me a small fortune in disposable batteries.

The worst thing about NiMH batteries is that they self-discharge after about 2 months or so sitting unused in the camera or camera bag. If you wind up taking pictures only occasionally, this can be a problem especially if you want to make some fast unplanned pictures. If you use the camera only occasionally, then I suggest getting disposable lithium (non-rechargeable) batteries. One-time-use lithium batteries keep their capacity well in storage, and take a lot more pictures than the same size NiMH batteries, but cost a _LOT_ more - about $9 or $10 for four AA size cells.

I tried using regular alkaline cells - they choked after about 10 pictures. Nickel cadmium batteries were only good for two to five pictures.

I have been using the same re-chargeable batteries for three years now. Radio Shack brand and the same brand charger.

Maybe 3 hours

look for one with larger mAh rating