Inverter question

We always run with our inverter "on".

We never turn the inverter off. The engine alternator is more than sufficient to keep your batteries charged if the inverter is used to power your refrigerator.

A/c to battery or did you want to say gas ( 12 volt to control board is on ac or gas ) If you have a gas electric fridge they are seldom wired into a 110 inverter circuit, on purpose. Does your inverter power your fridge? Or are you now residential ?
On the Question , we run with the inverter "on "24/7 The engine alternator charges the chassis battery and also the coach battery ( inverter) with 160 potential amps .. In my case ,More than enough. Your coach may be wired differently though.

GHOST1750 wrote:
is it OK to run with the inverter on without running the house batteries down?

Yes. YOu use only a slight bit more energy going through the inverter.

But....gotta ask.....are you SURE that the fridge has a mode where it runs ONLY on 12 V ? Possible but not common.

Sam Spade wrote:

GHOST1750 wrote:
is it OK to run with the inverter on without running the house batteries down?

Yes. YOu use only a slight bit more energy going through the inverter.

But....gotta ask.....are you SURE that the fridge has a mode where it runs ONLY on 12 V ? Possible but not common.

The ref. runs on AC when plugged into 30 or 50 amp. then when it is unplugged from the 30 or 50 amp source it is supposed to switch automatically to gas which it did for 12 years then for some reason it forgets to switch. Maybe it has the same problem remembering as I do "AGE".:B

GHOST1750 wrote:

Sam Spade wrote:

GHOST1750 wrote:
is it OK to run with the inverter on without running the house batteries down?

Yes. YOu use only a slight bit more energy going through the inverter.

But....gotta ask.....are you SURE that the fridge has a mode where it runs ONLY on 12 V ? Possible but not common.

The ref. runs on AC when plugged into 30 or 50 amp. then when it is unplugged from the 30 or 50 amp source it is supposed to switch automatically to gas which it did for 12 years then for some reason it forgets to switch. Maybe it has the same problem remembering as I do "AGE".:B

Usually on the back of the refrigerator there are two 120 volt outlets. One is hot all of the time, on your inverter, for the ice maker. The other outlet is hot only when you are on shore power or generator. Perhaps the cord from your refrigerator was switched from one outlet to the other. If you want to run on your inverter while on the road, you have to be plugged in to an outlet that stays hot all of the time.

I run with my inverter off...turn it on when needed. I called Magnum...they said run with it either off or on, makes no difference.

I turn it on when it's needed.

rgatijnet1 wrote:
We never turn the inverter off. The engine alternator is more than sufficient to keep your batteries charged if the inverter is used to power your refrigerator.

This used to be true. Now a days, I would check the voltage at your house battery while driving if at all possible. Modern charging systems do not put out as much voltage as older ones.

We run our aftermarket Xantrex Prosine 2.0 to run the fridge when driving. We also have 420 Watts of solar. The Trimetric shows what in going into or out of the batteries and almost always shows a small gain when running as above.

We do not leave it on all the time; During a cloudy day or night hours the fridge will draw 40 some amps from the battery if the engine is not running. When we stop for lunch or a rest we either switch to propane or turn the fridge off. We don't run with the propane valve open.