Problem with battery

Hello,

About one week ago I bought a BB 9300 and I made the mistake of almost completely discharge it in the first day. When it turned off by itself, I turned it back on several times. Then, I found out that doing this can damage the battery or may cause a malfunction. Now my battery doesn't last even a day. I use my phone a lot but I always close the apps Im not using, backlight is set to the minimun.
I want to know if this problem can be the consecuence of what I did or if they gave me bad battery.
Is there any solution?

Thanks :)

must be a bad battery. modern lithium ion batteries don't have "memories", meaning that they don't need to be discharged and recharged like old batteries once did. in fact, it's more of a bad thing to let it die than to keep topping it off.

Absolutely correct, that this should not happen with the new li-ion batteries. but still before you go for a battery change. Let the battery drain out completely till the phone shuts down and then charge it till it gets a full charge, see if this helps. (It has helped me once )

Curve 9300 Specs - BlackBerry Curve 3G Specifications

Battery & Battery LifeBlackBerry Curve 9300
1150mAHr removable/rechargeable
lithium-ion cell
Standby time: GSM� - up to 19 days,
UMTS - up to 14.5 days
Talk time: GSM - up to 4.5 hours,
UMTS - up to 5.5 hours
Music playback: up to 29 hours
...

You indicate you are a heavy user, I assume you are using the phone which does consume a lot of power.

Compare the Talk time to Music Playback which uses the CPS, but not the phone radio: 4.5Hr vs 29Hr.