Charging batteries as 6 or 12 volt

cgmartine wrote:
I just bought two Trojan T-105 batteries to replace my house batteries, but I will not be installing them until my next trip in several months. In the meantime, I will be placing the batteries on my garage floor. I have a slow trickle battery tender that I use on my motorcycle that I can use (1.5 amps) or a heavy duty battery charger.

Should I charge the batteries individually as 6 volts, or together as a single 12 volt?

Second question: Which ever charger I use, should I place the negative lead of the charger on the negative battery post that would go to the body frame (battery #1), and connect the positive lead of the charger to the positive post of the battery that is connected to the motorhome? The batteries (in series) will have a cable from the positive post of battery #2 to the negative post of battery #1.

I hope this makes sense!

I think you have battery #1 and #2 mixed up in your description.

Anyway like Wolfe stated, battery #1 will have - 6 volts for the - terminal for your charger, then the +6 volts is connected to the negative side of battery #2, and the + side of battery #2 is + 12 volts for the other battery charger terminal.

Think of the pair of golf cart batteries as a 12 volt battery in two 'easy' to carry 67 pound packages, connected together with a wire between the first and second battery half.

Much easier to install than a 8D 120 pound battery!

Yes you do want the battery off the cold floor. Put it on some wood or something, even a 2X 6 will work great.

Good luck,

Fred.