I have a new Sunline trailer on order and expect delivery in the mid- June time. The dealer is going to install two batteries for me and after reading all the info on batteries it seems that the way to go is with two golf cart batteries. My question for all of you GURUs is do you need to get a special 6 volt 3 stage charger or can you use one of the 12 volt chargers ? I plan to do a fair amount of dry camping. Also would a 15W solar panel be any help in keeping the batteries charged when the trailer is not hooked to shore power or is it too small? I also plan to buy one of the Honda 2000 watt generators and have been told that the solar panel would be a waste of money.