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cgi2099 avatar image
cgi2099 asked

Inverter Charger decision help or something else?

Hey all starting to set our truck camper up.

The plan right now is to have a 400ah lithium bank (EG4 LL)

A Victron 12v DC-DC 30 amp from the truck.

A 50a solar MMPT.

3000w Generator


Devices:

12v A/C - 30-60a (Treeligo)

12v Refrigerator

12v Pump

12v Lights

120v TV

Misc. 120v items

Gas instant water heater


The plan was to get a 3000w pure sine wave inverter / 50-100amp 12v charger combo.


So my question is there a charger inverter that will pass 120v while also charging the bank plugged into the grid or generator?


I only want one 120v circuit in the camper for simplicity, I guess what I'm asking is can I connect the load & critical load together and still get 12v charger while passing 120v?

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1 Answer
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snoobler answered ·

In inverter/charger does what you want. The Victron Phoenix line is inverter only. The multiplus line is inverter + charger - plug into shore, and you get 120VAC passed through to the loads and 12V charging.


I would size your inverter for about 30% of the typical 120VAC load. A 3000W inverter will consume excessive power and operate very inefficiently at lower power levels.


If you have low 120VAC requirements, a small inverter and a separate converter may be more cost effective.

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cgi2099 avatar image cgi2099 commented ·
Thank you so much for the info! Is there an inverter that will allow shore power? I thought I read somewhere that I could not have the out of the inverter on the same circuit as shore power?


I was originally looking at a Phoenix 12 50a charger and a 1000w inverter separate. But thought I read thebabove and thought I'd have to do a multiplus.


So the multiplus's inverter will consume battery even if there is no load?

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