Any reason not to get a group 31 battery?

tatest wrote:
Maybe because it weighs 75-80 pounds.

A G27 AGM (which the OP ended up buying) will typically average ~ 64 lbs, a G31 ~ 5 lbs more and nowhere near 75 - 80 lbs.

Maybe because it weighs 75-80 pounds. Can you lift it and place it where it needs to be? This is the reason many manufacturers provide dual Group 24 deep cycle batteries (about 45 pounds each) instead of one larger one, even though the pair is a slightly less reliable solution.

DinTulsa wrote:
My local Sam’s had a sale on batteries so I bought a grp 27 AGM battery.

Great choice. :B

I appreciate the info. My local Sam’s had a sale on batteries so I bought a grp 27 AGM battery. I was going to opt for the 31, but my tongue is heavy enough as it is. The grp 31s are super heavy.

As always, you have heard lots of options. If you want to keep it simple, simply replace your 12v battery. Since you "never" dry camp you should be good to go.

If you want to improve things just a tad, replace your 12V with a true deep cycle battery, not a marine/deep cycle.

Of course you can continue up the ladder and get an AGM, a 31, two 12 volts, and don't forget solar power! Get a converter too while you are at it. How about a generator when the power goes out?

The answer to your original question is NO. Now go get something that works for you. Good luck in the hunt.

I understand the OP does not boondock but if he has the room the bigger battery will simply give him more options. We are not talking a lot of money? What's the difference in cost $25.00 bucks. We are not talking going to an AGM or 2 Golf cart batteries.
Having the ability to run the furnace overnight with confidence, or connect a smaller inverter is a nice option to have. THe OP may find themselves stranded and need power? Never say never.
I use my RV in many ways and try to create as many options for myself as I can.

wa8yxm wrote:
And that is just ME.. Oh and it is only a partial list of times I've been real happy I have like 500 amp hours of 12 volt.

How horrible for you, losing shore power like that. :S Funny, we lost power in Oct 2015 for 36 hrs when a freak snow storm blew in and took out power in the entire area. Funny, just one G27 battery to keep us going yet we're still here to talk about it. :p

He may never dry camp or boon dock but I recall a thread a few years back "BANG NO POWER" Two versions of that story. The OP had a plug fail (I had that happen too but no bang. just a ZZZZOOOT)

My version of Bang no power went like this.

An inattentive driver missed the fact the road curved.
What he did NOT miss was the power pole. Result BANG... No power

Also had a fuse fail

Also had an area wide power fail

Also had Digger O'Grady cut a primary feed to the park (Wish I'd seen him do it as I'm sure it was impressive but I was about a quarter mile from the dig site)

And that is just ME.. Oh and it is only a partial list of times I've been real happy I have like 500 amp hours of 12 volt.

Veebyes wrote:
When the day comes when you need more power, for whatever reason, you won't have it.

Oh the horror of it all! :W

For full timers, sure a dual battery reserve can be advantageous but for those of us who recreational camp a few days at a time and normally with shore power anything more than a single battery is WAY overkill. We've been doing this for 20 yrs, typically may lose campsite shore power a couple times each season but so what? Miraculous as it may seem I've never owned any trailer with more than one battery yet we've managed to survive just fine - how could that be?! :h :p

When the day comes when you need more power, for whatever reason, you won't have it.