batteries

[hippygypsy]

Hello all:

I have a solar battery question. I have 2 150 watt panels, 2 6v costco batteries, and a 30 amp charge control with a 3000w Inverter.

I need to add 2 more batteries. Should I used the same costco ones...and can they be mounted on the toughe jack be hind the propane tanks?

I boondock a lot and my charge controller lingers at 64% when the inverter is used. So I think 1 more batteries would do it...right?

[hippygypsy]

and do can i just add one battery?