If you ever come to in that situation, you needn't worry about the battery life on your device. (phoneradar.com)
One thing is for sure - RIM has always cared about the battery life of their products, and I don't think they'd make an exception on their first tablet. (crackberry.com)
Talking about the battery life in real time usage, it was quite well; the device lasted a full day on more than average usage. (phoneradar.com)