My new to me and used RV came with two 12V House Batteries and would show 10.8 V just a short time after unplugging from shore power, so I knew I had to replace them. Some off brand car batts. Yep, th...
Good to have come across this post. We need batteries for our travel trailer, they are no longer holding a charge. I don't see batteries on Costco's website, do you have to go to the store and ask for them or order them? We are near the Hillsboro store.