How big an inverter do you plan to install? For what purpose do you intend to use it? And how big is your battery bank?
I have a 4 battery house bank with 460AH capacity. I have a 1000watt peak inverter that will deliver about 800 watts continuous and has two 15 amp plugs on it. I use it to charge cell phones and computers, and the occasional rechargeable camera battery. The 1000 watt inverter will deliver up to 8 amps of AC current at 120v. To deliver 8 amps of 120v AC it will need to draw about 76 amps of current from your batteries when they are at 12.6v, plus about 10% because of the inefficiencies in the inverter. When your battery charge drops below 12.6 v the current draw will increase. Lets assume you draw an average of 90 amps until your batteries are discharged. Oops, fully discharged ruins the batteries. So lets say until your low voltage alarm goes off and you reach 50% on the batteries. On my boat that is about 230 AH/90 A = about 2 ½ hours. A good 3000 watt inverter will deliver more AC current to run stuff on your boat like a TV or coffee maker, but it would deplete the batteries at a much higher rate. So you need to ask yourself the three questions I started with, and pay a lot of attention to the size of your battery bank. Rick Brass Washington, NC From: CnC-List [mailto:[email protected]] On Behalf Of Daniel Sheer Sent: Monday, February 17, 2014 7:47 PM To: [email protected] Subject: Stus-List Inverter to Shore Power Can I connect the outlet of the inverter to the shore power inlet socket (using an adapter of course)? I don't see why this would be a problem, but what do I know. Even if I left the converter on it would just waste power, I think. The advantage, of course, is that all of the AC outlets on the boat would go live. Thanks for advice. Dan
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