Would this work? (battery setup)

Whether 2 12's or 2 6's still need a place to put em

~DJ~ wrote:
My 31 Trojan has 130 amp hours. The 6 volts have 225 EACH!!!

But the 225 amp hours are at 6V, meaning you can draw 1 amp from the battery for 225 hours at 6V.

For 12V, both batteries combined have 225 Ah together. Still not bad.

Reddog1 wrote:
Because they are AGM, could you not mount them on end, side by side where the existing battery is? You could put the battery cable terminals toward the front of the TC, with a piece of Styrofoam between the battery and front wall, with the same strap concept you have to hold the batts against the wall.

Considering the work involved to install the two 6-volt batteries, what will you gain?

Wayne

My 31 Trojan has 130 amp hours. The 6 volts have 225 EACH!!!

Reddog1 wrote:
Because they are AGM, could you not mount them on end, side by side where the existing battery is? You could put the battery cable terminals toward the front of the TC, with a piece of Styrofoam between the battery and front wall, with the same strap concept you have to hold the batts against the wall.

Considering the work involved to install the two 6-volt batteries, what will you gain?

Wayne

DJ,
I'm with Wayne on this one. The only way my 6v AGMs would fit in my battery compartment is on their side. If you buy the 6v 4ct size you may be able to fit both in there by placing them next to each other on their sides. You might have to rearrange/reroute some of your water lines to make everything fit, but it might be doable.

Here's a pic of my 6V AGMs on their side:

AGMs will/do VENT. Only under duress, excessive internal pressure caused by say, a shorted cell. You don't want to be asleep when/if that happens.

From your pictures, I can not see a reasonably simple way to fit a second battery.

But there does seem to be enough room to fit one, slightly bigger 12V battery without a lot of hassle. There are good 12V AGMs on the market, and it would be a simple drop-in solution.

What is the estimated gain in amp hours you expect from your mod?

Because they are AGM, could you not mount them on end, side by side where the existing battery is? You could put the battery cable terminals toward the front of the TC, with a piece of Styrofoam between the battery and front wall, with the same strap concept you have to hold the batts against the wall.

Considering the work involved to install the two 6-volt batteries, what will you gain?

Wayne

Yes it would work, but sure looks like without too much effort they would fit in the box with a bit of rework.
-Turning batteries 90°. probably need to move pump over,
-Adding in front I see several options- Hard to see what might be involved.

Only thing that catches my eye is the water tank pump line, which a simple platform to raise, allow moving back against wall. Still might not be enough in front, but that false wall could be cut and moved out a few inches, keeping existing electrical intact. Need a new top.

But a little more thought, as your using a stool seems building out might be advantageous, in day to day use, especially if it lives there a good deal of the time. A 'since your there' thing but not needed to add the battery. But it looks like moving the whole wall out to get room for battery.3-4"?

Only problem I see is, even with the battery in the EXACT location of the stool, you are partially blocking access to your converter and whatever that white doohickey is next to it, not to mention the access door to the truck bed.

Sure you can get at them all but remember it's on the floor so even with full access it's inconvenient to begin with. You'll be adding inconvenience to inconvenience.

I assume that one of the new 6V's will go where your original battery is in the photo above. Be careful to check size when you choose the new batteries. 6V batteries can be tall; I had to get a new battery box which did not fit into the former battery location. Also, one of my old 12V's lived under the hood and the new 6V was too tall for that space, so now both of them live under the couch and I lost a lot of inside storage space.