Roadtrek Auxillary Battery locationh

#1
My auxillary battery is located under the rear frame behind the spare tire and license plate near the propane tank and is such a tough area to remove and replace the battery. Any suggestion on how and where to move it to a more accessable location for this old Pappy? Kinda hard to crawl under and make the exchange.
Thanks a bunch!
Pap
 
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