svenge

I've got a 88 DL sedan, its battery (which was 2-3 years old) seemed to have died, so I had the battery recharged. It worked for a couple days, then the car had no response at all thereafter. No lights would work, wouldn't attempt to turn over (or even "click" when I tried to start the car), nada. So I replaced the battery, and it worked for a few days. However, now it's not doing anything at all again. What gives?