Battery Tender off season

[Bowhunter]

Hi all. Need help and advice on maintaining 2 six volt while stored.
I've read all battery related posts/threads. 6v verses 12 volt, series vs parallel etc etc. but nothing pertaining to my question.
I connect two 6volt Golf Cart batteries in series while on TT. Also use Zamp Solar and Honda gen when needed.
My batteries are now in a warm basement over winter.
I want to purchase a Battery Tender brand 12 volt 1.25 amp
Two fold question: do I connect them in series as when on TT and simply connect the tender, or do I need to purchase two seperate 6volt tenders connected independently? I'm thinking 1.25 amp may not be enough to reach both batteries???
Next question: I snowbird in Fl for three months, can I leave them unattended that long? I will top the water but I have no one to monitor their condition while in storage.
Thanks for any and all responses. Sorry long winded question for what is likely a simple answer

[Russb]

Give a call to Battery Tender and get their recommendation.

[rcflyer]

I have had two problems with battery tenders left for 6 months.

The first was on a 12 volt battery on a car. It was connected to a GFI breaker in my garage. Due to an unknown reason the GFI tripped (possibly a thunder storm). As a result the battery tender drained the battery below 3 volts which ruined the battery.

The second was two 6 volt batteries in my 5th wheel. I had purchased two 6 volt battery tenders. When I returned 6 months later one of the 6 volt batteries had no water left. Another battery ruined.

If the batteries are fully charged in a warm place I would recommend making sure the top of the batteries are clean and leave them alone.

[Lloyd]

I have two 6 volt Trojans hooked in series in the camper. They haven't been out since being installed six years ago.
I use a Battery Minder Plus. It gets hooked up usually mid Oct. and stays there until the camper comes out for dewinterizing some time in May. It keeps the batteries charged, and desulfates them at the same time.
Using this, I haven't had to remove the batteries during the winter. There has never been any over charging, never had to add water during the process.
It's the best setup I have found and I'm totally sold on that particular Battery Minder.
As stated previously, if power is interrupted/stopped/disconnected to the battery minder and it's not restarted, it will drain the battery.
Instructions advise to use it when ever the vehicle is not in use. You can never over desulfate.

[Bowhunter]

Hi Lloyd, thank you for always sound advice.
I would like to follow your lead especially since you have two 6volt in series.
I originally posted "Battery Tender Plus" as a brand. Just calling it all in the same.
You stated Battery Minder Plus. They are as you probably know two different companies. I did nt know that.
I like the "Minder" especially noting the de sulficae but their site did not show a Minder Plus
Just to be sure could you verify yours as Minder not Tender, and to help me further could you post your model number.
I need to order ASAP
Thanks as always for your help.

[Lloyd]

I've had mine for a few years. They might have changed them ---type/model/name.

Mine is the Battery minder Plus, model--12117

Seems like I vaguely remember them coming out with a new one.
Not positive tho.

[Lloyd]

https://www.amazon.com/BatteryMINDer...us+model+12117

[Bowhunter]

Thanks Lloyd.
Checked their site, they have revisions to model #, seems was revised in 2011.
Will order ASAP
Thanks again, you re the best!

[Lloyd]

Amazon has the 20117. Good price to.

[Bowhunter]

Thanks Lloyd, just ordered. Enroute already from Amazon Prime
Great price

[mmorris]

I've used Battery Minders for over 10 years. I have four that I hook up to our tractor and other vehicles while sitting at home for up to 8 months at a time. Before I bought them, I was replacing batteries all the time. Now, I don't! They will save you a money.

2008 29CK