Chargeverter questions

My system is One EG4 18k inverter with two All-weather pro outdoor wall mount Batteries. The system is hooked up to the grid also for charging the batteries at 20% SOC. I wanted a third option to charge by generator if the grid fails and there is bad weather. They are hooked up with BMS. The primary battery is hooked up to the inverter with two sets of cables to the Inverter. The slave battery is hooked up to the primary battery with parallel cables. I want to hookup an ChargeVerter to protect the inverter from dirty power. I need pictures to show me how to hook up the wiring.

Questions:

1. Why would I need a bus bar to hook up to the battery? Could I not just hook up the chargeverter to the slave battery with parallel cables or put Amphenol ends on the cables it comes with and put on the slave battery? If not slave battery would it be to the primary battery?
2. I have 2 sets of cables with Amphenol connectors on one end only.
3. Where would I connect the wires from Chargeverter to the all weather pro batteries? Would I connect it to the number 1 battery which has 1 pos and neg terminals free or to the number 2 battery which has 3 pos and neg terminals free?
4. I currently have a mounted receptacle 4 prong twist lock plug (just installed for 9000w 30a generator that has THD 10 specs, the L1 and L2 wires are installed on the inverter gen L1 and L2 terminals, white neutral is installed on inverter neutral bar and green ground is installed on inverter PE ground. I just invested and installed all the wiring and receptacles for the generator hook up. Currently all I would need to do is hook up to receptacle and start generator correct?
5. If I reduce the generator settings on the 18k inverter settings page to max 4000-5000w charge would this currently be safe for the inverter? It should lower the THD to at least 5% I believe.
6. I may add a third battery in the future depending on how this system works.

@grissam-solar I used a bus bar since the Chargeverter comes with a ring terminal on one end and I didn't have the correct tools to put the amphenol connector on the cable

@ron  your questions are the same as mine. Hopefully jared will read and reply. I also need to know should I connect to primary battery with chargeverter on my last free amphenol connection because of the parallel battery setup and will it charge both batteries because of BMS communication?

My thinking is that you can connect the Chargeverter to all batteries when connected in parallel via bus bar OR only one battery if they are run in parallel. If the RS485 Comm port can be utilized while the inverters are connected to the CAN port then I'm thinking you should only connect to one of the batteries with the chargeverter. Trying to use the RS485 comm port complicates everything. I'm thinking it's probably just easier to have the Chargeverter utilize voltage since it's only being used during power outages or no PV

Posted by: @ron

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I have 3 ea. 6000xps and 2 ea. EG4 Wall Mount batteries. The master inverter is connected to the master battery and #2, #3 inverters are connected to the slave battery. The master and slave battery are connected in parallel. The chargeverter via external busbar are connected to both the master and slave battery. 

 

1. I'm questioning if I only need the chargeverter connected to the master battery versus both the master and slave since they are both connected in parallel.

2. Can I connect communications between the chargeverter and the master battery via the RS485 even though the batteries are utilizing the CAN port for comm with the inverters?

3. I've seen posts on other forums saying the chargeverter shouldn't be charging the batteries while under load. That doesn't sound correct.

 

 

1. This would be possible with the paralleling kit installed on the Wallmount batteries.

2. According to the Chargeverter manual, this setup is not recommended. However, I have observed customers connecting the Chargeverter communications in this manner. As a result, the SOC was not accurately displayed on the Chargeverter, but you would need to set the RS485 to EG4.

3. You are able to have the Chargeverter on while still powering loads.

@jared So utilizing the RS485 communication for the Chargeverter gives a false reading? Even after changing to EG4?

@Ron If the BMS communication is set up between the Chargeverter, Inverter, and master battery, this could occur, as having the master battery communicate with both the Chargeverter and Inverter simultaneously is not a supported configuration at this time.