Charging home battery backup system using F150 lightning

[boandabby]

Thanks. My grid inputs (AC in on the inverters) are already connected to my grid. See the diagram below. Do I have to disconnect them, then connect the grid inputs to my AC output from the truck?

Sponsored

 

[RLXXI]

If it works for you, run with it, no two systems are going to be completely alike, mine is set up as an off grid system, I can use both the grid input or the gen input as the power source.

 

[boandabby]

Here is another solution that may be easier. I can connect the chargeverter DC output (5 kW) to the busbars. See the diagram below. I think this is safe. I am wondering how I can control the system. And how much power goes to the grid and how much power will charge the 48v batteries? The chargeverter can connect to the batteries through RS485, but I am not sure whether the batteries can communicate with both the inverters and the chargeverter. Does anyone have experience with this setup?

 

[RLXXI]

Typically the inverter will send power to the home first, then charge the batteries, then send what's left over to the grid, (check your settings) at least that's how my inverter works with the exception of not sending power to the grid. I'm no solar expert nor an electrician, just an old mechanic with limited formal training in electrical/electronics so take what I say with a grain of salt.

I have twin solar systems on my home, one that's grid connected and a completely separate system for back up when the grid drops and the grid connected solar goes dark, I don't use a chargeverter between my truck and backup system, the inverter handles everything from powering the home to charging the battery array, including what the truck sends in thru the generator input.

 

[boandabby]

This is what I got from Google AI. I think it is correct.

A. How to control power to the house:
Your house inverter should be set to "DC Priority" or "Battery Mode." It will pull exactly as much power as your house needs from the busbars.

• If the Chargeverter is producing 5,000W and your house is using 2,000W, the extra 3,000W goes into the batteries.
• If your house uses 7,000W, the Chargeverter provides 5,000W and the batteries make up the 2,000W deficit.

B. How to control power to the batteries:
You control the charging speed via the Current (Amps) knob on the front of the EG4 Chargeverter.

• Max Limit: The Lightning bed outlet is rated for 7.2kW (30A @ 240V).[2] To be safe and avoid tripping the truck, set the Chargeverter to a maximum of 80-90 Amps DC (which is roughly 4.8kW–5.4kW).
• Optimization: If you want to conserve the truck's battery, turn the Chargeverter down to 20-30 Amps. This will provide a slow "trickle" to keep your house batteries from dying without draining the truck quickly.

C. Automation (State of Charge):
If you have a communication cable between your batteries and the Chargeverter, you can set the Chargeverter to only turn on when the batteries hit a low percentage (e.g., 20%) and turn off at 90%.

Sponsored