cbzook wrote:
anyone mounted a battery under the middle/rear seats in an xl7?
Yes, I had a pair of 23A/h (IIRC?) AGM's paralleled together and fixed into a Maxi Bin. To put them under the seat I'd lift up the bar that you use to slide the middle row; the Maxi Bin would fit under with it lifted, but once released it wouldn't slide back out.
The controller was a kit one from Jaycar (no longer available) that relied on resistance in the cabling to the battery for voltage feedback. So a good kit given the length of the cable run from the controller to the middle row seat. If I was doing it again I'd use a DC-DC charger.