After a quick trip to Trash80's Cap Replacement Guides, it doesn't look like there's a guide for the Q650 yet.

Set your multimeter to Continuity mode and trace the circuit between the battery contactors and the C203 pinholes. You might have to try a few configurations before your multimeter picks up anything. The mode icon usually looks like this on most multimeters.

This will tell us (within a margin of error) whether or not it may have been the battery that caused the cap to fail. As far as I know those little ceramic caps do not usually explode on their own, so it's likely it was the battery.