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Old 08-14-2015, 08:00 AM   #1
67 Globetrotter
KrisE MN's Avatar
1967 20' Globetrotter
Grand Rapids , Minnesota
Join Date: Oct 2014
Posts: 146
OK bought my Magnum MS2012 inverter charger, purchase a 12V Microwave?

I now see a listing locally for a new / old stock 12v microwave, Samsung. I do microwave often at home.

Because I have an inverter and plan on good battery sizing plus solar energy, do I need the 12v microwave? It's pretty cheap, only $40.

The requirements for proper microwave ovenoperation are as follows: Operating Voltage: 12V DC Breaking Voltage: Min. 11.5V, Max. 15.5V Battery life must be at least 90Ah at 12VIf possible

***connect the oven to a separate supply battery (a secondary battery).

Gross Weight20 liter
12V DC Min. 11.5V, Max. 15.5V65A750W2,450MHz450W (IEC-705)32V DC

And if I don't need a DC battery or want one because of my inverter, maybe someone else would like this?

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Old 08-14-2015, 08:51 AM   #2
Rivet Master
1974 Argosy 20
2014 20' Flying Cloud
Kooskia , Idaho
Join Date: Jul 2009
Posts: 4,592
I bought a 12 volt microwave at a truck stop store about 10 years ago. I have had it in my Argosy for all that time. I use two 6 volt golf cart batteries in series for my system.

It works, but is very slow. It takes about 65 amps while operating as I recall. I cannot really recommend the one I have at least, due to the slow speed.

I use a small 120 volt microwave in my 2014 FC 20 operating on the optional 1000 watt inverter. Same two golf cart battery system. Takes about 90 amps to run it. It is much faster than the 12 volt one in the Argosy.

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Old 08-15-2015, 06:33 AM   #3
67 Globetrotter
KrisE MN's Avatar
1967 20' Globetrotter
Grand Rapids , Minnesota
Join Date: Oct 2014
Posts: 146
Thank you for your response

Here's the listing if anyone wants one. 12v microwave

The only others I found with a quick research were in the 400.00 range.
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Old 08-15-2015, 08:04 PM   #4
Rivet Master
2016 30' Classic
Erie , Colorado
Join Date: Oct 2013
Posts: 1,197
Images: 1
If you have the Magnum and getting a reasonable sized battery bank stick with a regular 120V microwave. Think about it. The 400W will need to run 4x times as long to do the job of a typical 1600W microwave. Doubt that you will see any appreciable AH reduction by sticking with 12V.

And your photo of the astronauts proves my point. They have a 12V microwave and had to wait 7 days for breakfast to be done. That photo where they are smiling was on day 1. By day seven they wished they had a 120V microwave
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Old 08-16-2015, 02:34 PM   #5
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Years ago we bought a 120VAC 600w iWave iCube microwave, the smallest I've ever seen, but it takes 20 minutes to bake a couple smallish potatoes. We stopped carrying it because it doesn't make much sense.
"Of the gladdest moments in human life, methinks, is the departure upon a distant journey into unknown lands... A journey, in fact, appeals to Imagination, to Memory, to Hope,the three sister Graces of our moral being.
Sir Richard Francis Burton
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