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BFL13

Victoria, BC

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Posted: 05/30/20 05:43pm Link  |  Quote  |  Print  |  Notify Moderator

3tons (ISTR) has a Victron battery monitor of some sort that has a gen start feature you can set a voltage for. Not a clue how that works.

But if you had that connected to a converter that just lost its 120v input and thus showed a lower voltage (battery voltage) and that was what you had set as your gen start voltage, that could trigger the gen start?

EDIT More options on that

Can't link that Google article from Victron--anyway they have ways to do generator starting.

* This post was last edited 05/30/20 06:11pm by BFL13 *   View edit history


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Gdetrailer

PA

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Posted: 05/30/20 06:54pm Link  |  Quote  |  Print  |  Notify Moderator

BFL13 wrote:

3tons (ISTR) has a Victron battery monitor of some sort that has a gen start feature you can set a voltage for. Not a clue how that works.

But if you had that connected to a converter that just lost its 120v input and thus showed a lower voltage (battery voltage) and that was what you had set as your gen start voltage, that could trigger the gen start?

EDIT More options on that

Can't link that Google article from Victron--anyway they have ways to do generator starting.


VICTRON GX STOP-START MANUAL

Doesn't really seem to be exactly what the OP was asking for, in a nutshell it is a BATTERY MONITOR with auto start. One would have to pull some tricks electronically to trigger it on shore power fail.. Then I don't see anything about 120V ATS so one would still need an ATS to switch between shore and gen..

BFL13

Victoria, BC

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Posted: 05/30/20 07:36pm Link  |  Quote  |  Print  |  Notify Moderator

Yes, when you lose the 120 shore power, you can trigger the gen somehow and no problem, but then the shore power 120 comes back on--you don't want to have 240v.

Or you could have a rig with two air conditioners--one on shore power only and the other on gen only

wopachop

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Posted: 05/30/20 08:41pm Link  |  Quote  |  Print  |  Notify Moderator

Could you call someone to start the generator for you? If there is wifi near your trailer you could install a temp monitoring system. It can alert your cell phone to a rise in temp and then you could ask someone to go start the genny.

Its also nice to monitor fridge temps.

CoeyCoey

Colorado

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Posted: 05/31/20 10:40am Link  |  Quote  |  Print  |  Notify Moderator

Dutch_12078 wrote:

How do you plan to handle choking or priming the engine for starting?


https://www.aimscorp.net/3200-watt-portable-inverter-generator.html

CoeyCoey

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Posted: 05/31/20 10:41am Link  |  Quote  |  Print  |  Notify Moderator

Dutch_12078 wrote:

How do you plan to handle choking or priming the engine for starting?


https://www.aimscorp.net/3200-watt-portable-inverter-generator.html

CoeyCoey

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Posted: 05/31/20 10:54am Link  |  Quote  |  Print  |  Notify Moderator

Well, I think I am going to go all battery. In order to make it simple, I would need a Victron 2 AC input Quatro inverter/Charger. It would be around $3,300 plus the generator at $800. If I skip the generator, I can get a Victron Multiplus inverter for $1,300 and two Tesla battery modules with BMS for around $3,000. That would give me around 10kWh of energy. Enough to run my AC longer than the gas tank on the generator would. 5 hours with no solar coming in, 8 hours with 75% solar coming in. The two battery modules don't weigh much more than the generator. Plus, I can add more in the future. I think four would be great. Plus, the size of the batteries means I don't have to worry about a cooling system. The air conditioning will only draw a max of about .16C with two modules, and .08C with four, and that is with no solar input.

time2roll

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Posted: 05/31/20 11:32am Link  |  Quote  |  Print  |  Notify Moderator

Please post pictures of the install [emoticon]


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pnichols

The Other California

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Posted: 05/31/20 02:02pm Link  |  Quote  |  Print  |  Notify Moderator

CoeyCoey wrote:

Hello all,

I am looking for a small portable generator with autostart capability. The only one I have found so far is the AIM models. Does anyone else know of any brands with this feature?

My goal is to have a backup generator automatically kick on if the shore power should fail to make sure my dogs still have AC if I am not around to turn it on myself.

Thanks!


We've kindof had the same issue with our dog's safety when away from our motorhome on foot while looking for rocks - with the motorhome parked in the desert sun with it's built-in generator running and the rooftop AC on to keep the coach interior and dog cool (the dog was in a playpen - not running loose inside) :

We kept the rooftop vent fan running (of course powered by the coach batteries) for whole-coach ventilation in addition to the AC, and a powerful portable 12V fan running (also powered by the coach battieries) and aimed directly at the dog in it's playpen for super air flow aimed right at the dog's playpen.

When we got back to the RV for some reason the generator, and the AC that it was operating, had stopped on it's own. The 12V coach batteries powered dual fans kept the dog cool and ventilated enough so as to remain comfortable while we were away without the generator no longer running.


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pianotuna

Regina, SK, Canada

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Posted: 05/31/20 03:06pm Link  |  Quote  |  Print  |  Notify Moderator

CoeyCoey wrote:

If I skip the generator, I can get a Victron Multiplus inverter for $1,300 and two Tesla battery modules with BMS for around $3,000.


Where did you find Tesla Battery modules for $3k?


Regards, Don
My ride is a 28 foot Class C, 256 watts solar, 556 amp hours of AGM in two battery banks 12 volt batteries, 3000 watt Magnum hybrid inverter, Sola Basic Autoformer, Microair Easy Start.

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