Installed a Ramsond 1500watt pure sine wave inverter to power my 2.7 ft\3 dorm fridge
in the Burro
. It's on a sliding tray in the forward left hand dinette locker because next door to the fridge
cmptmt and to make cable run to the battery
as short as possible. I used pre-lugged 1/0, 6' length plus a pre-lugged 1' long cable on the hot side to allow putting the fuse block in the line. I probably could have got away with 5' but couldn't find it pre-lugged and I'm not running all over town to welding suppliers, etc. to make it cost even more.
To take the fridge
off shore power, I unplug the fridge from the receptable behind under-sink door, go around to the lower fridge vent, and hand it up into the fwd locker; go back inside and plug it into the inverter. At this time, the fridge has been inverter-powered from a "warm" start (fridge not on or cooled down) for several hrs. I set the fridge on 4 on a dial marked 0 to 7. Five hours now and the idiot lights
still showing 12.5 volts (multimeter says 12.53 at the last check). Ambient was only 65-69 degrees today so I was only present to see the motor kick in twice. Looks like the wattage draw surges to about 750 momentarily but the continuous draw is under 150 watts. Fridge draws .87 amps continuous so should be about 105 watts use. I'm only going down to 80% on the battery
which is 12 volts or the next light
down on the Christmas tree and I'll shut it down. It may be I'll find I need another 100 amp hr. battery
to make this thing run for 24 but I'll need a sunny day to test the recharging rate of my 80watt solar panel
before I contemplate that.
Think this inverter may have been overkill for this ap but at $259 free shipping it seem like a pretty good deal on a pure sine wave of that capacity. Cables cost me another $63 from Amazon; 50 for the six-foot run and 13 bucks for the short red wire. Counting the initial 72$ for the dorm fridge, I'm still well under the price of a small 3-way, I think I'll run 12 gauge SJ to the overhead locker in the rear master suite, break the jumper on my shore power duplex receptable and have both shore and inverter power from one receptable each. I have checked to see if my wife thinks we'll ever plug in anything else back there when on shore power. She doesn't think so so I won't have to cut any openings for more boxes. As for mounting the inverter in the locker. I will have to cut a rectangular opening in the locker door and add a plexi plate so I can see the idiot lights
. I had contemplated other sorts of flush counterfront installs for this box but all involved cutting more holes in the glass inner shell and less than satisfactory ventilation. In the locker, there's plenty of air around the fins (the fans didn't even run today except on startup), and the locker connects to the fridge cmptmt. where I have a 120AC muffin fan on a strut which can also plug into the inverter without a big battery drawdown impact. I have photos but no time to post this evening. Maybe tomorrow evening.