Skyblade:
A well written article on 787 battery issue.
Perhaps well written overall, but their mention that the forward battery is used to start the main engines seems ludicrous to me based on what I have read here and elsewhere.
The forward battery can be used to power the fuel metering and transfer system to allow
partial refueling without engine, APU or ground power. But to start the main engines without ground power requires the APU.
And if I recall correctly, the "very high surge current rating of 1000A max.," is actually above the rating that Yuasa gives for the batteries.