Setting up a new 24v system in a 12v RV and are new to this-- need info

[HJEngland]

Setting up a new 24v system in a 12v RV and am new to this. I wish I had some help but there is none to be had locally.

I'm setting up a 24v solar system for my stationery 12v 5th wheel RV. I have (2) 24v Renogy 320 watt panels, a 24v Sungold Solar 3000 charger inverter and (3) 24v 100 ah Lifepo4 batteries. I'm looking to add some more panels in the next few months but that's what i have right now.

I know I will need a step down converter to add to the output of the solar charger inverter, but my question is are there any place I can find wiring diagrams for a set up such as this? I've been looking and can't seem to find any.

Any advice would be appreciated. I'm still learning and don't want to blow myself or my rig to smithereens in the process.

Thanks!

 

[John Frum]

24v 100 ah Lifepo4 batteries.

Please provide a product link to the batteries.
Hopefully they have a smart bms so that you don't need a shunt.

 

[John Frum]

Is this a trailer?

 

[HJEngland]

https://www.amazon.com/gp/product/B0BGZQTQ96/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1

 

[HJEngland]

Is this a trailer?

It's a fifth wheel RV

 

[HJEngland]

Please provide a product link to the batteries.
Hopefully they have a smart bms so that you don't need a shunt.

it has built in bms

 

[John Frum]

Is the shore power plug 30 or 50 amps?

 

[John Frum]

it has built in bms

But does it have a bluetooth interface?

 

[John Frum]

But does it have a bluetooth interface?

Seems to be a dumb BMS.

 

[HJEngland]

Is the shore power plug 30 or 50 amps? its 30 amps

 

[HJEngland]

Is the shore power plug 30 or 50 amps?

30 amps

 

[John Frum]

Do you have slides or jacks or other high draw dc loads?

 

[HJEngland]

But does it have a bluetooth interface?

why would it need bluetooth interface?

 

[HJEngland]

Do you have slides or jacks or other high draw dc loads?

Yes, but I don't usually open and close the slides, or retrwct and extend jacks because the unit is permanently stationery.

 

[John Frum]

why would it need bluetooth interface?

So that you can see the state of charge, cell deltas, and protection status.
A smart bms also allows you to adminsratively disable the charge/discharge paths.

 

[John Frum]

Yes, but I don't usually open and close the slides, or retrwct and extend jacks because the unit is permanently stationery.

That is good to know as it influences my design.

 

[HJEngland]

So that you can see the state of charge, cell deltas, and protection status.
A smart bms also allows you to adminsratively disable the charge/discharge paths.

I'm not sure about that or even how to hook any of that up. I'm just doing a basic build for right now until I get much better versed at all this. The rig doesn't run much in terms of electricity-- a TV, Starlink router, a coffee maker, a microwave, a laptop, a few lights. It does have an aircondtioner that might run occasionally in the hottest days of summer, but I am at over 7,000 ft altitude and it rarely gets so hot that a/c is needed to run consistently.

 

[John Frum]

I'm not sure about that or even how to hook any of that up.

Not sure how to respond to that.

I'm just doing a basic build for right now until I get much better versed at all this.

So you plan to do this twice?

The rig doesn't run much in terms of electricity-- a TV, Starlink router, a coffee maker, a microwave, a laptop, a few lights.

Starlink is a big draw depending on the version.

It does have an aircondtioner that might run occasionally in the hottest days of summer, but I am at over 7,000 ft altitude and it rarely gets so hot that a/c is needed to run consistently.

You won't have much air conditioning unless you have an ice generator to supplement your battery.

Since this is a stationary build do you want to have the system inside the rv or external(in a shed)?

 

[John Frum]

Do you have a propane absorption fridge?
Will you be using propane for heat, refridgeration, hot water and ice generator?

 

[John Frum]

Also since its a stationary build.
I suggest you do a ground mount array for the panels.