Converter Question

[OpenRoader66]

Hi, I'm looking at replacing my TT's batteries with a couple 6V Trojan T-105's . I also read that I would have to change the converter because the one that it came with is******and it would only kill the new batteries. The last thing I want to do Is ruin brand new batteries. Any truth to this? Is this a hard thing to do? I believe mine is a WFCO 45amp Brown Converter/Charger.

[flintlok]

I run a C-Pap machine while we are boondocking, and am happy with the two 6 volt golf cart batteries bought at SAM'S club. I also upgraded my converter to a Progressive Dynamics 9270, and I love it. It will not overcharge your batteries, but can be forced into boost mode where it will put out 70amps charging. E-bay had the best prices on this model, and it is the highest output that will plug into a standard 15amp ac outlet.

[tenbear]

beemerphile1 wrote:

OpenRoader66 wrote:
The trailer is only one year old. It came with two group24 interstate rv/marine dual purpose batteries. I'm looking to run my heater fan throughout the night and these die part way through the night.

Something else is wrong. Two good batteries should operate the furnace two nights. Have the batteries tested and clean/tighten all connections.

Could be the batteries are just not getting fully charged.:h

[beemerphile1]

OpenRoader66 wrote:
The trailer is only one year old. It came with two group24 interstate rv/marine dual purpose batteries. I'm looking to run my heater fan throughout the night and these die part way through the night.

Something else is wrong. Two good batteries should operate the furnace two nights. Have the batteries tested and clean/tighten all connections.

[tenbear]

OpenRoader66 wrote:
The trailer is only one year old. It came with two group24 interstate rv/marine dual purpose batteries. I'm looking to run my heater fan throughout the night and these die part way through the night.

The heater fan uses quite a bit of current. Think about more blankets or a down comforter and cut back on the heater use.

Its not good to run your batteries down below about 50% as it shortens the batteries life.

Your old batteries probably are rated at about 80 Amp-hours each, total of 160 AH. The T-105s are rated at 225 AH so should last about 1/3 longer. But it sounds as if the old ones were dying rather than just dropping to 50% so the T-105 will probably still be dropping below 50%.

[OpenRoader66]

The trailer is only one year old. It came with two group24 interstate rv/marine dual purpose batteries. I'm looking to run my heater fan throughout the night and these die part way through the night.

[tenbear]

The only problem I know of with the WFCO converter is that some people have found that it never goes into boost mode, thus it charges the batteries slower than it should.

For charging 2 T-105s you could probably use a larger converter than a 45 amp one. If you do a lot of off grid camping, and your WFCO is not going into boost, you might consider a PD9260. On the other hand, if you are always hooked up to power, your WFCO will be fine.

[rbpru]

Does your current converter work okay with the 12 volt system you have now?