Good to know the battery is cheap on EBay. I'm sure you'll need the charger as well. The instructional guide is also a free download off teh internetz. :)
did a little research for some people who keep asking questions. It's a Leica D-Lux 3 10MP. looks like it takes a 5.1V battery. It's a digital camera but looks vintage and has manual settings like a 35mm.