Solar battery charge solution for a TT in storage

[marcortez]

I want to able to "maintain" a pair of Trojan T-105 6 volt batts mounted on the a trailer tongue.

These batts should have a full charge from over the road charging prior to placing in storage and are brand new.

The storage term is likely to be 3 to 4 months before taking out again.

With a batt disconnect switch in the off position, would these batts lose enough charge over this time period in storage to be a concern?

If it is a concern, what output solar charger would be necessary to "maintain" these batts in a full charge state?
And if a low output charger would do the trick, at what point would a charge controller be necessary to prevent any overcharge "boil out", if any"?

Right now, I am looking at a Schumacher SP 200 solar charger that puts out 2.4 watts according to the specs and is at an attractive price.
Would a charger of this output do the job I am hoping it will and confirm no charge controller would be necessary?

[dagen]

If you have household 110 nearby have you considered using a battery tender that you can just plug in?

[marcortez]

Originally Posted by dagen

If you have household 110 nearby have you considered using a battery tender that you can just plug in?

I would love to do exactly that, over a solar powered charger, but, there is no outlet available.

[dagen]

Originally Posted by marcortez

I would love to do exactly that, over a solar powered charger, but, there is no outlet available.

I've only briefly looked at setting up solar for our trailer, but it appears that you almost always need a solar controller to prevent overloading the batteries. The controller will shut off the juice after the batteries are full and open up the flow if they dip down again.

[66joej]

Most solar panels come with a voltage regulator. Either as part of the package or as an option. Necessary in my opinion.