Hey guys, before i begin, let me introduce myself (kinda of the wrong place

). You can call me Jay, 21 yrs old, i'm from Montreal, i've been a Bell Mobility customer for about 6-7 years now and i finally pulled the trigger and bought my first Blackberry, the 8830. This is solid. I was using a Palm TX before (loved it too) but i had to make a decision eventually. You know carrying a Palm and cellphone was annoying
Unfortunately, this is my second BB 8830 (in less then 2 weeks). The first, had lots of issues. Screen flickered, screens colors inverted at times, unusual instability, even in the "core network" i had a hard time sending a message, making a phone call and using the data (one way or another), i'd have to soft reset it in order to make those calls and such. And lastly, the battery, it was is if it was leaking (make sense?)...so i changed it, and i got a new one (no problems). Now, for the past 2 days, i've noticed an issue with the battery.
It's the weekend, so i don't use the phone as much and surprisingly yesterday (sunday) i left it on my desk throughout the whole day. I made 2 calls (about 2min) and sent one sms message. From the moment i woke up, it was fully charged, at the end of the day, it was at 10-15%...now it's sitting in front of me, and every 10-20 minutes or so, it's dropping 5% off the battery...
I checked everything, i looked at the battery FAQ that you guys have posted up and i get no good news in the end. I checked if it was GPS, no. Browser, no. Any other programs? They're all off. I thought stupid at one point and said "i have a micro sd card in it, maybe if i turn it off, can it improve the batter?", so i did it and i got nothing...
As a side note, i'm tech-savvy, so if you're interested in helping, you can lay down the cards no problem and of course thank you in advance.
Thanks for your patience
Jay