The news for the Droid Bionic is coming in fast even after it has been released. Initial reports indicate that the Bionic has very good battery life, even able to go a full 24 hours under moderate use. However, if you really need more juice than that, and you don't mind your Bionic looking like it packed on a few pounds eating cheeseburgers, then the optional 2760mAh battery is for you. Here's a video above of the bigger battery on the phone.
Source: BionicForums.net via AndroidCentral