BlackBerry 8700

There's a few things that can be said about this issue. If left off and tuned on for an hour or a few days a week the battery life sounds about right. As far a leaving your phone in the car while it was 100 degrees outside depends on how long it was left in the car. I work in the warrenty dept for high end device/data device phones and i always advise customers if a phone is exposed to extreme temperatures for a period of time it would void the warrenty. How long was the phone left in the car? If it was for an entire afternoon while at that temp i would advise against doing a warrenty exchange.