Bought a used 2000 in 06. 12k miles. Caught up on all the service it needed. Did tires, shocks, ect. Four months later we left for Alaska, brought it home this year. Added 15k to it, no problems. Pulled us up a lot of steep grades and back down. Hope to go back next year.
Most RV batteries live a long and useful life, some are murdered.
2000 National Sea Breeze F53
1998 CRV Toad