If you have a duel 27 house deep cycle House Battery and a small 24 starter battery linked to a onboard 10 amp duel charger 110 ac and runing the Honda with a max output of 10 amps you should only need a 65 watt solar panel.
Make sure you have a Isulator between the house and starting battery so the system won't drain to each other. Deep Cycle usually is rated at 12.8 volts fully charge were the starting battery is 13.2 fully charge.
You also can just have all batteries same type to charge all systems as long as they are same type and same yr.
This will do away with the Insulator that draws voltage.
I am looking at changeing my starter battery to the same 27 group battery and run 3 batteries as House. I never would down the batteries enough to not start enigine. I do have cut off's at 10.8 volts on systems and even that should start the Honda with 3 batterys.
That being said I will never get below 12.2 volts on a 5 day cruise with no chargeing at all . You can always take a $129 1200 watt low profile gen to charge your batteries. (have one and fits lower aft cockpit and runs 5100 btu air condition from Northern Tools).
Are we having Fun Yet?
Dave
KayakDan wrote:Dave,thanks for that report. Sounds like the Edgestar is pretty efficient.That was the only power draw I was concerned about.
I should be fine with the power setup I'm planning. 130w of solar,charging 6-7 hours a day in Bahamas should keep up with the draw. LED's and stereo draw practically nothing,and no VHF or chartplotter while we're at anchor.