Which batteries are better to use with a digital camera?

Duracell or Energizer batteries? My batteries keep running out so quickly in the same day and I can't take it anymore!

camera typically use either proprietary batteries (Li-ion style) or AA.
Although alkalines AA have matching size and voltage, they are not recommended as the camera require more Amps than the battery can supply so the battery will never last long.
With winter coming, alkalines are also notorious for loosing their capacity with low temperature whilst rechargeable will keep working.
So if you're rich use and don't care about the environment use disposable Lithium batteries, otherwise use rechargeable AA. Typical capacity these days is about 2000 mAh per cell with the best ones rated at 2500mAh.
Get twice as many as you need in your camera so you always have on set in the camera, the other in the charger.

Either one but lithium lasts longer.

You have to get special batteries, not the normal ones. They have them in the photo department of Wal Marts etc and most are rechargable, but don't get the generic because they suck too.

i use rechargeables!

Digital cameras need a lot of power, especially when using the flash and LCD screen...Its always better and cheaper to buy rechargeables (NiMH 2500 or so) and a charger.
However, if you insist on using throw-away batteries then Energizer make the 'e2 Lithium' (which apparantly last up to 7X longer than a regular battery) or the next best would be the 'e2 Titanium'.
These are quite expensive, so I would not recommend them if you use your camera frequently.

Energizer e2 lithium for cameras are the best by far.

Get a recharger and set of NiMH batteries. This would be more economical than having to keep buying disposable batteries. Here's a good on-line site to buy and learn more about rechargeable batteries.
http://thomasdistributing.com/

You can also buy these at Radio Shack or at a drugstore such as Walgreens, Rite Aid, etc.

Listen to what Chuckie said. You need a good set of NiMHi batteries and a decent charger. You'll save a bundle in the long run. Get an extra set so that you always have a fresh set charged up and ready to go.

His Thomasdistributing link is correct as well. they've got high quality stuff for fair prices. Get at least 2500mAh AA's and your problems will be over.