6 volt battery question

steve R · 01-05-2009, 08:57 AM

I have a 07 Winnebago 35j one of the coach batteries is bad. I'm thing of replacing them with to 6 volt batteries, Do anybody know if they will fit?

steve R · 01-05-2009, 08:57 AM

I have a 07 Winnebago 35j one of the coach batteries is bad. I'm thing of replacing them with to 6 volt batteries, Do anybody know if they will fit?

troth · 01-05-2009, 10:01 AM

steveR, measure your battery tray and available height. Then go to the Trojan battery website and look at the specs for the T-105 or the T-125 batteries. I believe some posters have put four Trojans in their battery tray for the coach, then relocated the chassis battery by itself nearby...
Try an advanced search (use the "Find" tab above, keywords "Trojan" or "T-105" in the Winnebago forums).

DAN L · 01-05-2009, 02:14 PM

check out lifeline agm batteries on the bd batteries website.
lifeline agm batteries are valve regulated and can be mounted on their sides or even upside down if necessary. mine are mounted on their sides.
valve regulated agm batteries are a proven technology used in aviation for years.
they are more expensive than flooded cell batteries, but last much longer. other benefits are that you never have to add water and there is no corrosion.

becks · 01-05-2009, 05:01 PM

Two 6 volts will fit for sure. If you choose to go with four you will need to take precise measurements as ststed. You will likely need to make new tie downs also, which only requires buying some treaded rod. Good luck.

Party Barge · 01-05-2009, 06:15 PM

I aggree with Dan L, I installed new lifeline bats, and have been very happy with them. My Horizon had three 12 volts, and by changing the way they set in the tray and by adding a new clamping bracket was able to fit four new 6 volts in the same space. Not sure of your tray size.

Y-Guy · 01-06-2009, 08:01 PM

Steve, I've been looking at going the dual 6 or possible 4 6v batteries too. Oddly enough when both myself and a neighbor talked to our dealer about doing this they did not recommend it (based on Winnebago). They have installed dual 6v for me in other rigs to it took both of us back. Does anyone know why Winnebago wouldn't recommend these?

DAN L · 01-07-2009, 01:32 AM

maybe the weight...each of my my lifeline 6v batts weigh 90#. if memory serves, i think someone on this forum said that my winne batt box was designed for about 300#.
i guess you could reinforce the battery box...then go down the road kinda heavy on the right side...

bruceh · 01-07-2009, 08:51 AM

I have had 4 6 volt batteries in my unit for 4 years with no problems. The are in there so closely that I didn't bother with holddowns.

hamguy · 01-07-2009, 11:16 AM

Y Guy,
I have never heard that Winne does not recommend 6V batts. I have 2 in mine as do thousands of others and others are running 4. As one person pointed out, perhaps weight might be an issue but 4 batts in the normal case size should be ok.

DAN L · 01-14-2009, 11:59 PM

bruceh:
what size and brand of 6v batteries are you using and how much do they weigh?

steve R · 01-15-2009, 06:52 PM

I installed two 6 volt batteries yesterday in my 35J It was a pretty easy install had to change the battery hold down setup because the 6 volt batteries are taller.

Y-Guy · 01-15-2009, 07:28 PM

Steve, any chance you have a photo of your setup? Do you think you could have put in 4? Did you use the T105's or something else?

5JEG123 · 01-15-2009, 08:04 PM

I also have 4 6volt batteries and 1 starting battery on my 04 Adventurer. I bought the 6volt golf cart batteries from Costco and they are taller than I expected but I manage to fit them all in the battery compartment. I had to cut some angled pieces of the battery compartment floor and reweld them. I also have to change my engine battery to an Optima battery which has a smaller footprint. All 5 are very tight and would not move so I did not bother to put battery hold downs. If you're going with 6 volt batteries, make sure that you do your homework first by measuring the height of your battery compartment and leave enough space so the terminals do not touch the metal cover.

SeeTheUSA · 01-16-2009, 04:56 AM

Last week I replaced the original 12 volt Interstate Marine/RV coach batteries with two 6 volt Interstate GC2 golf cart batteries. The new ones are about 2 inches taller, so I had to extend the length of the four hold-down bolts (easy job).

The new 6 volt Interstates cost $58 each at Sam's Club . . . a local battery shop had Trojan T105's for about $160 each. I'm not sure how long the Interstates will last, but I can get nearly 3 sets (6 batt's) of those for cost of one set (2 batt's) of Trojans. Seems like a good gamble.