Originally Posted by N546RV
... Do you have any difficulty removing the battery in that position, what with the upper part of the firewall bent forward? That was another thing that concerned me about mounting high, though I suppose removing the battery could just involve loosening the attach screws to allow the box to tilt a bit.
It's tight, but it comes out. The upper FW flexes a bit. This is a really small battery and if it were a couple of inches taller it would not want to come out as easily.
Another option would have been to offset the battery 1/4" or so from the FW to provide space for it to slide up the upper FW, but I think your idea of just loosening the screws is better. I had the battery in and out many times during the build process, but I have never removed the battery since I've been flying.