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ColoradoJon said:

Well, it's technically not 'bad' to leave your battery plugged into shore power, unless the converter/charger is not capable of maintenance charge.  If you have the factory installed WFCO 8735 or a external smart charger you can leave the battery to charge indefinitely.

Same goes for your solar charge controller.  The Victron that you have chosen is a multi-stage adaptive charger, so you can leave it connected to your batteries for as long as you want.

Adding one caveat to folks reading this and they have an acid-flooded battery (and not the new AGMs). Flip the battery main and disconnect the solar at the beginning of the season, carefully wiggle the two caps off the battery (or each battery)  and check the water level. I only have to add 1-2 tablespoons of distilled water per cell (don't use regular tap water or spring water). It's not much, but will increase the life of your battery!

A squirt bottle helps to add the water and I use a tablespoon with distilled water poured in a cup. If you accidentally overflow a cell, don't touch it. It has sulfuric acid in it. Finish up with the other cells first and close the lids tightly. Then clean it up with a piece of shop towel or paper towel with gloves on and put it in baking soda and water mix. It neutralizes the acid into water and salt. Dab a bit of the baking soda mixture on the top of the battery to neutralize any acid that may have spilled from an overflow. You'll see a white residue. That's ok. You can wipe it off with damp paper towel. 

After adding water, you can let the battery sit with no loads overnight to let the chemicals mix or go ahead and plug in shore or solar power. 

Well, it's technically not 'bad' to leave your battery plugged into shore power, unless the converter/charger is not capable of maintenance charge.  If you have the factory installed WFCO 8735 or a external smart charger you can leave the battery to charge indefinitely.

Same goes for your solar charge controller.  The Victron that you have chosen is a multi-stage adaptive charger, so you can leave it connected to your batteries for as long as you want.

@DurangoTaB, I did do straps, in each direction, and used sign plastic/coroplast to fashion a bit of a cover.  That was a super tight fit, there’s no way a battery box would fit.

I think she said they came in 5, 10 and 15 foot.  I asked for 15'.