Starting a new thread on my battery and inverter upgrade to post incremental progress rather than telling the story when I'm done. There is just enough room under the Sprinter XL of my Interstate to install two Lifeline GPL-4CT AGM batteries on each side. This is the same area that Airstream now installs the batteries on all new Interstates. I'll have 440 AH of capacity with four 6 volt batteries in series-parallel arrangement. My goal is to use the microwave when camping without hook-ups. A battery and inverter upgrade was always part of my long term plan when adding 400 watts of solar. I looked at using large lithium batteries but concluded that I'd have to add even more stuff to make a lithium upgrade work. I didn't want to give up any internal storage space so putting the batteries under the van seemed the best place. I'll remove the original battery box under the lounge seat and install the inverter in that location.
Here is a photo of a battery rack on the floor of my shop.
A view of a rack installed without batteries during one of my many fit checks. The clearances in this void under the van are less than 1 inch on either end.
I have to use a small floor jack to install the batteries as seen in this photo.
I did a road test yesterday with batteries installed and it works as planned. Photos of both racks with batteries installed.
That last photo also shows a new junction box I added to relocate wiring from the generator, which needed to be moved to make room for batteries on the driver side.
I'll post progress as I move forward. I removed the racks after the road test and will now paint everything before the final installation.
- - Mike
2013 Lounge EXT on 2012 Sprinter