Envious as mine has the four trojans, but only one panel that came on the rv... I want three panels like yours
however, I have something yours needs (and it's the only thing you will want
A battery watering system like here
Batteries WILL go thru water and this makes it a 2 minute job to fill them...get the 1/2 gallon distilled water @ walmart, stick the hand pump in the bottle and pump a few times to fill all cells on four batteries at once !
the previous redwood 5'er had batteries that were impossilbe to get to and it took a whole day to add water...