| | Re: BB 9900 poor battery life
.284 was a poor release for battery life. I had it on my T-mo and my Bell 9900, which both suffered from it. Most releases after .284 were much better for battery.
Then, lower your backlight to 10% and turn the Auto dimming feature on, with a 10-seconds backlight timeout. Turn off ALL auto updating programs and install the latest firmware release. The most recent releases have a feature that shuts down background apps. All of these things will reap big rewards in terms of battery life.
At least 17+ different BB's since 1999 -- too many to list...