5680 uses a 4400mah battery
We tested it with DVD playback and with the single battery, it ran 1 hour and 5 minutes.
8890 uses a 14.8V 6600maH battery
We ran Star Wars Attack of the Clones from a full charge and were able to get 1 hour and 42 Minutes.
however... how long does 5680 last w/ dual battery on this testing standard w/ dvd playback?