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Open Roads Forum  >  Tech Issues

 > Two inverters for 50 amp service

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pianotuna

Regina, SK, Canada

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Posted: 11/16/22 02:25pm Link  |  Quote  |  Print  |  Notify Moderator

time2roll wrote:

What? Why are you load controlling? Just feed the beast.


Hi time2roll,

He wants to limit shore power to xx amps so as not to blow shore power breakers. His existing inverter accepts two inputs--but doesn't allow limiting on line 2.

My personal choice would be identical to yours. Get one big inverter to handle all loads, and a 48 volt battery bank.

I suppose a case could be made for redundancy of having 2 inverters.


Regards, Don
My ride is a 28 foot Class C, 256 watts solar, 556 amp-hours of Telcom jars, 3000 watt Magnum hybrid inverter, Sola Basic Autoformer, Microair Easy Start.

Cptnvideo

Arizona - most of the time

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Posted: 11/16/22 02:47pm Link  |  Quote  |  Print  |  Notify Moderator

You're also missing the point, Don.
Bigger inverter implies not using shore power assist, which would therefore require more/bigger batteries.


Bill & Linda
Arizona
2019 Dodge Ram Laramie 3500 dually 4x4 diesel
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Cptnvideo

Arizona - most of the time

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Posted: 11/16/22 02:57pm Link  |  Quote  |  Print  |  Notify Moderator

Load sharing isn't necessary for 50 amp shore. Doesn't exist for dry camping. It's for 15/20/30 shore power augmentation.
I might want to run 20 amps of loads while on 15 amp shore. With load sharing I would draw 50 ah from my batteries instead of 200 ah.

time2roll

Southern California

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Posted: 11/16/22 03:47pm Link  |  Quote  |  Print  |  Notify Moderator

Get a battery charger that will pull 80% of the available power to charge the battery.

The other issue is voltage drop and the power support inverters do not give voltage support. If the voltage sags in the park it could put you out of business.

Check the specs but most chargers will work down to 90 volts.


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Cptnvideo

Arizona - most of the time

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Posted: 11/16/22 04:01pm Link  |  Quote  |  Print  |  Notify Moderator

You still don't get it.
Check my signature, read my previous posts in this thread, read the specs and manual for the GoPower IC3000.
Then reply.
Thanks.

time2roll

Southern California

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Posted: 11/16/22 04:23pm Link  |  Quote  |  Print  |  Notify Moderator

Let us know how it works out.

Cptnvideo

Arizona - most of the time

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Posted: 11/16/22 04:32pm Link  |  Quote  |  Print  |  Notify Moderator

Thanks, t2r.
We're currently plugged into 50 amp 2 pole at DW's sister's home. But when we get back to Phoenix in December, we will have the opportunity to augment 15 amp shore power.

pianotuna

Regina, SK, Canada

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Posted: 11/16/22 06:10pm Link  |  Quote  |  Print  |  Notify Moderator

Cptnvideo wrote:

You're also missing the point, Don.
Bigger inverter implies not using shore power assist, which would therefore require more/bigger batteries.


Hi Cptn,

Nope. I'd never buy an inverter/charger that did not allow load support or shore power assist. It is FAR to convenient a feature to give up.

I actually down sized my battery bank once I had the Magnum unit.

On the other hand--I started with just a 2500 watt inverter and "limited" my power use by only plugging in the converter (about 800 watts). I'd plug the shore power cord into the inverter and do "double conversion".

I still have that ability as some gfci circuits do not play well with the Magnum 3000 hybrid inverter charger.

That "feature", the STUPID decision to use 120 volt cooling fans, and HUGE input surge are why I do NOT recommend the Magnum.

* This post was edited 11/16/22 09:12pm by pianotuna *

theoldwizard1

SE MI

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Posted: 11/16/22 07:13pm Link  |  Quote  |  Print  |  Notify Moderator

I read the original post and skipped everything else !

Will it work ? QUALIFIED YES !

Can You Power a 2........wo 120 Volt Generators?

I have not seen any RV that has 240V appliances and those clearly will NOT work !

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