quasimatter wrote:
SJ-Chris wrote:
When installing a 2nd battery: I'm surprised that the 28as only have one coach battery. Adding a 2nd battery to double capacity seemed like a no-brainer. I put it in the small, otherwise pretty useless compartment on the driver's side near the rear (this is on a 28a Majestic). I drilled holes for ventilation in the compartment. I purchased these 20' long super heavy duty jumper cables and then I cut off the ends and crimped on some connectors. I ran the cables under the coach and it was pretty easy to zip-tie it up along the way.
https://www.amazon.com/gp/product/B07FZWBKNZ/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
(~$35 which was a cheap solution for thick wires).
and this crimper:
https://www.amazon.com/gp/product/B07V6V7XZC/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
and these connectors:
https://www.amazon.com/gp/product/B083QC122B/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
I also used one of these trays ($9) that I bolted down so I could strap the battery in place:
https://www.amazon.com/gp/product/B00E3ALEQM/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
-Chris
Hi Chris - a quick question on above 2nd battery installation. I think the second rear compartment on driver side is ideal for second battery. However, I was wondering if you re-enforced it with something as it seems to be plastic. Would it hold weight of the battery (especially going over bumpy roads)?
Anyone else have done a second battery in 28A? What location did you use to put battery?
I looked at whether or not reinforcement was needed. I AM NOT AN EXPERT, but to me it looked to be well secured to the RV. You will need to judge for yourself. I did have another RV a couple of years ago and on that one I added some metal plumber strapping. Like this:
https://www.homedepot.com/p/Oatey-3-4-in-x-25-ft-28-Gauge-Galvanized-Pipe-Hanger-Strap-33530/301505501?MERCH=REC-_-searchViewed-_-NA-_-301505501-_-N&
It made me feel better even though it was probably an overkill.
I don't think I will need a 3rd or 4th battery, but I have thought that if it was needed it could possibly be put in the passenger side front compartment. I'd use these bolted down to help hold them in place:
https://www.amazon.com/gp/product/B00E3ALEQM/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
You need to make sure you have proper venting in any compartment so that you don't get battery gas/vapor building up during charging. I'm told you want holes for venting at the top AND near the bottom of the compartment.
Good luck!
Chris
