Thanks for all the replies. We ended up getting a battery maintainer (trickle charger) to top up the batteries while we’re here at the Oregon campground and have shore power. This is the model we chose:
NOCO Genius G3500 6V/12V 3.5 Amp Battery Charger and Maintainer https://www.amazon.com/dp/B004LWVEKS/ref=cm_sw_r_cp_api_i_I4zoEbB5JTC5EWe hooked it up yesterday afternoon. Our batteries were under 25%. We woke up with the batteries at 64%. Normally, since arriving in Oregon, we wake to find the batteries dead or nearly dead. The trickle charger seems to be doing the job of slowly charging and, if necessary, repairing the batteries. I’ll report back if anything changes.
Thanks!
