We installed the Xantrex Freedom 1800 Inverter/Charger a couple of years ago on our 268 and love it.
http://www.donrowe.com/inverters/freedom_hf.htmlIf you increase the battery bank size it just makes sense to get the Inverter/ charger to help recharge that larger bank. Our has a 40A 3 stage smart charger with remote display...works great!
What size inverter you need really depends on what you want to run. With the 1800 we run pretty much everything on the boat including the stove top,tv,microwave,house fan, and sometimes the a/c for short periods on time to cool the cabin. To run the higher load items you really need a large battery bank. For our bank we bought 4 GC2 6vgolf cart batteries from Sam's Club. I ran them in series/parallel to make a 12v 440 aH battery bank. The cables are 000 gauge welding cable with colored boots on the end to prevent a mix up. I had my Interstate battery guy make the cables...don't forget to count on this expense because these cable aren't cheap!!


Keep in mind that adding these batteries also adds a couple hundred pounds on weight, and they have to be evenly distributed in the engine compartment or you will have a list to one side
Inverters usually can't be installed in the engine compartment, but the cables need to be very short. I installed mine as close as I could to the engine compartment in the top of the mid cabin foot locker. I made the cross brace/ mounting plate out of 3/4 plywood



I think the inverter is great because it doesn't take up any storage space, but one other option is running the Honda EU2000 generator on the swim platform but then you lose some storage space and have CO to deal with. It all depends on what you want to run and how often. Feel free to ask any questions

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1979 AMF Alcort Puffer
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1973 Startcraft 18ft "Sea Pickle"