Charging with two batteries

[Wayne&Sam]

Originally Posted by JCWDCW

I pulled this off the web: surprisingly there is a big variation in info out there.

What?? On the Interweb?????

[Wayne&Sam]

Originally Posted by teagues

Since I had one handy, I've attached (hopefully) a picture of our battery box. The Battery Tender cable is connected to one of the negatives (top left) and the other positive (bottom right).

That's what I do too- except it really doesn't matter if the pos and neg are on the same battery.

[bovk]

This thread got too complex.
Back to original questions:
The batteries are in parallel so charge them as one unit.
Battery tender does a good job (slow), just connect it.
No need to disconnect terminals but for cleaning.
If trailer is stored and on 110V, put batteries on "storage" (this stops charging by non-smart charger) and connect them to battery tender.
Connected to a car batteries always charge from vehicle.

[Tyvekcat]

Originally Posted by teagues

Since I had one handy, I've attached (hopefully) a picture of our battery box. The Battery Tender cable is connected to one of the negatives (top left) and the other positive (bottom right).

Yes that was a real good detailed pic Teagues. That shows everything, and shows how easy to hook an external charger to the batteries. I use the battery tender junior and it seems to work fine. No boil over.
Have a good one,

[nsbcpa]

I use an automatic deep cycle 10amp charger........If I charge both batteries simultaneously as shown above, will the automatic charger cycle to maintenance mode prior to fully charging each battery?

[terryV]

My 35' Southwind MH had a switch on the panel that when activated would disconnect the batteries. When I switched it off in the Spring, the batteries still had plenty of charge in them. no battery tender or charger all winter.

I could, and often did, just leave it connected to shore power all winter. (I liked to start the engine every month or so, and run it for 20 to 30 minutes.) Didn't disconnect the batteries when it was on shore power.

Either way the batteries were fine in the Spring.

As quality campers go, that Southwind was not nearly the quality of a 31' Classic AS. Didn't cost nearly as much, either.

Now you are telling me that my top of the camper food chain Airstream has a cheap converter that will burn up my batteries? I was told that I was buying the best.