Hey ppls... time for me to get a new battery. Couldn't find any similar threads...

Replaced my stock battery a few years ago with a Century. Haven't had any issues with it until recently when i noticed the car started struggling a little start up... then the battery went flat last night with just the radio running for about 1hr, and that's with only 2 speakers connected! I thought it would have lasted a little longer then that...

Anyway, just wanted to find out what ppl are using, general costs and where to buy...

Some brands i've come across:
- Odyssey
- Optima
- Deka
- Pulse
- Century

Also, is it better to get the light weight slim batteries or ya normal chunky types? I'm not concerned about weight savings... lol. I'm also planning to run a 4ch amp (no sub) in the future, so wanna take that into account as well.

Just need advice and where to buy something decent, that can put up with a sound system and wont put a hole in my pocket. It's for my EK btw...