Tackling RV Maintenance: Battery Upgrades and the Never‑Ending To‑Do List

If there’s one universal truth among RV’ers, it’s this: the work never stops when the wheels do. The moment you’re parked, a whole different adventure begins — changing generator oil, sealing gaps before the next rainstorm, checking the roof, tightening this, replacing that. The list goes on, and somehow it always grows.

This week, it was my turn to tackle a big one: replacing both the chassis and house batteries in the coach.

Choosing the New Batteries

I decided to switch to AGM batteries this time around. After years of topping off water levels every month, I was ready for something a little more hands‑off. AGM means no more refilling, less mess, and fewer maintenance chores — exactly what I was looking for.

After some comparison shopping, I landed on Mighty Max batteries on Amazon. The reviews were solid, the specs matched what I needed, and the price didn’t make me choke. I hit “Order” expecting a long wait.

Nope. Three days later, they were sitting on my doorstep like they teleported there.

Installation Day (a Pleasant Surprise)

I blocked off Saturday, 21MAR26, for the install, mentally preparing for battle. The last time I swapped batteries, I thought it would be a quick hour. It turned into nearly five thanks to rusted bolts and not having the right tools on hand. Lesson learned.

This time, I figured two hours minimum.

Forty‑five minutes later, I was standing there wondering what I had missed. Everything went smoothly. No rusted hardware, no surprises, no blood sacrifice to the RV gods. The only hiccup: the new batteries don’t have the top latch for the existing hold‑down bolts. So, I’ll need to order new brackets before our next trip. But the batteries themselves? Done.

What’s Next on the List

Of course, finishing one job just reminds you of the next three waiting in line. Still ahead:

  • Change the oil in the generator

  • Seal those little gaps with silicone

  • Get up on the roof for a full inspection

The usual RV maintenance carousel keeps spinning.

But for now, the coach has fresh batteries, the install went smoother than expected, and I get to check a big item off the list. I’ll take that as a win.

Location: Lithia, FL, USA

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