ptgarcia

I use the long GC2 box from Allied Battery Co.

Jeff in TD

I just used my standard battery boxes for my T-125's. The lid doesn't sit on top of the bottom part of the box, but does cover the whole battery. I also had to use some longer hold down straps.

CrazyCooter

I use 4 T-105's mounted in a custom box mounted in the tounge of the trailer. I mounted 3 in a row and the 4th turned sideways. I was the only way I could get them all in there.

I keep it topped off with 3 120 watts solar panels and 100 amp charger in the inverter.

I don't worry about tounge weight as it is only 1400#. It helps offset the extra 65 gal water tank mounted behind the axles.

PChouinard

I have a sheet metal fab shop at my disposal so a custom battery box will only cost me a 30 pack of beer. I'm liking the 6V series thing more and more...
225 AmpHr is quite impressive compared to other batteries.. Keep 'em coming gents...
What type/size is this rig??

stumpjumper

i relocated my batteries to behind the big storage compartment. our genny is in their and takes up alot of room. if i ever get a new trailer i probably wont put a genny in it but might get another honda and run them together. however we got the 105 batteries as well. LOVE THEM........

CrazyCooter

It's a 27' Komfort TT. Nothing too crazy.

I havn't needed the generator this whole year. I'd like to free up that space in the bed.

I think I'll leave it at home now since the wife doesn't get crazy with the microwave anymore. I guess A/C use would be the only deciding factor.

PChouinard

Hey Crazy, I was wondering how you get 1400 lbs of tongue weight on a 27' TT? I must be missing something here. You stated there is a 65 gal. tank behind the axles?? No big deal but I'm just having a hard time picturing this myself...

CrazyCooter

I don't know how. The Manufacturer spec was only 650 empty. How does this thing weigh out at over 10,000 lbs loaded at only 27'? The cabinets are built heavy as is the chassis. This is what made me select this model.

This model is actually a T25S, but the box is 27', almost 29' bumper to bumper. My buddy bought a 25'er and brought it home and could not figure out why his seemed so much smaller. Tape measure don't lie. His was 25' toal length.

I guess with the front wall to wall cabinet at the front, the extra batteries ,and 90 lbs of inverter all in the front, it adds up.

The 65 gals of water only took 75-100 off the tounge.

People ask me all the time why I bought a dually for such a small trailer. With two sport quads on the diamondback cover, generator, air compressor, spare tires, tools, gas, and firewood in the bed, ready for a 4-9 day trip, the combo weighs in at 21,800 before I put the 22.5's on it. should be mid 22,000's now. Truck is at max rec. GVW and GCVWR.

I don't know how the SRW 2500 do it safely, some with much more trailer.

Mechanos

I'm looking at getting some batteries, too, for the small camper I just picked up. My local wholesale battery supplier doesn't carry the Trojan's.... they carry the Deka brand.

I can get a pair of GC15's (equivilant to T-105) for $83/each or a 8C11's (eq. to T-125) for $101/each. At 215 amp-hour vs. 235 amp-hour, I don't think that the extra 20 amp-hours of capacity is worth the extra $40 to me. If I was wanting to do some serious boondocking, I could get a pair of 8L16's @ 370 amp-hours for $160/each. While the extra capacity would be nice.... it's an additional $154 over the pair of GC15's.

John Faughn

The L16 are a different class of battery than the 1st 2 mentioned , I've got multiple systems , some with solar panels , inverters , control .
With an RV very few have the weight carrying [ frame & floor ] for a bank of L16s [ mine are in a bus ] , the L16 weighs about 135 lbs before the acid [ about 15 more lbs ] these being 6v , so for 12v at lest 2 L16 , thats over 300 lbs in a 2 ft square area , more than most trailers can handle .

Jeff in TD

Yeah, a custom battery box would be in order for L-16's. Trojan's high cap version is 420 amp hours.

With the Trojan line, anyway, as far as I can tell the T-105 is the best bang for the buck when you look at capacity, expected life in discharge cycles, and cost.

4 T-105's give 450 amp hours at 12v. 2 L16H's would be 420 amp hours at 12v, and are more expensive, require two people to move w/o risking a back injury, and aren't rated for as many full depth discharges.

On the other hand, the L16's would pack more battery capacity into a smaller footprint (since they are almost 17" tall). If your battery compartment is built to handle the weight and not wide/deep enough for the desired # of smaller batteries, then they would make sense.

When I went with T-125's they were the highest capacity I figured I could get into my battery compartment w/o modification, so I got them even though they are a bit more money per amp hour stored.

Mechanos

All good points....

Looking at the spec sheets from Deka, their L16's are 113lbs wet., so two of them would be 226lbs and would net 370 amp-hours. At the prices I can get them (listed above), for less than $20 more, I could get 4 of the GC15's (T-105) and have 430 amp-hours at 252lbs.

Weight is not a concern for me... my truck and trailer (camper will be mounted on a flatbed gooseneck) have plenty of capacity and the trailer is plenty stout enough to handle the extra weight. However, for my little camper, I think I'll be just fine with 215 amp-hours from 2 GC15's. If money weren't an issue, 4 of the 8C11's (T-125) would provide a massive 470 amp-hours @ 264lbs!

But realistically, I'll have two single bulb light fixtures, a single fixture water pump, and small 9000 Btu/hr Duo-Therm furnance (when it's cold) and possibly some occassional use of my small 750 watt inverter. The GC15's ought to do me just fine.

Jeff in TD

Yeah. I think a person needs to look at their particular use to balance spending between charging, storage capacity, and conservation to get the best performance for their dollar...

Mechanos

Agreed.

Overkilling things again.... I probably only need a 15 amp converter to handle my load needs..... but, I can get a pretty darn good deal on an Iota DLS-55 w/ IQ4. It will more than power my camper and should recharge the batts fairly quickly to boot.

Rattletrap1

AGM's are a great choice for a starting battery with deep cycle capability. But for a true deep cycle application you can't beet flooded. AGM just doesn't have the amp hours.

6V golf cart batteries provide the most amp hours per dollar and hold up better than standard deep cycles.

I can say I've had excellent service from regular ol' Costco deep cycles in the past though. If the GC's aren't an option, I'd look there.