EG4 Chargeverter - Any concerns with charging and pulling from batteries at the same time

[n00dle]

Yeah it works fine. I’ve tested it.

I actually tested it on another brand of batteries also.

That’s why I think the manual was just talking about the lifpower V1’s. With those I can see that being a real issue. They would be competing in a way.

So you have a cable to the inverter via CAN and a cable to the CV via 485 with both being able to read the SOC and run accordingly?

Or have I misunderstood as my research seemed to have indicated that this doesn’t work?!

 

[Gavin Stone]

So you have a cable to the inverter via CAN and a cable to the CV via 485 with both being able to read the SOC and run accordingly?

Or have I misunderstood as my research seemed to have indicated that this doesn’t work?!

Exactly yes. It works fine. I haven’t seen any conflicts with it yet.

EG4 LL and indoor pro models can communicate with both at the same time.

Also the MK energy batteries I reviewed worked fine that way also.

 

[n00dle]

Perfect, thanks for the clarification!

 

[Bossman253]

How about communicating CV with JKBms someone have tested it ?

 

[Crowz]

I think a good way to get this across to anyone that asks this question in the future is to tell them its the same thing cars have been doing for over 104 years. Otherwise your car battery would be dead all the time. Just think of the chargeverter as the same thing as the alternator on a car.

 

[wpns]

Yeah it works fine. I’ve tested it.

Good to know, any issues to be aware of? Just split the RJ45 into the primary battery so the CAN connects to the inverter and RS485 connects to something else? Is there a Modbus protocol spec somewhere for talking to the Primary battery, or do you need to talk RS485 to each battery individually?

 

[Gavin Stone]

Good to know, any issues to be aware of? Just split the RJ45 into the primary battery so the CAN connects to the inverter and RS485 connects to something else? Is there a Modbus protocol spec somewhere for talking to the Primary battery, or do you need to talk RS485 to each battery individually?

No issues that I’ve seen.

Yeah I just used the master batteries CAN and RS485. It wouldn’t need a split from each. One way or another they will all be on a busbar together, or should be.

It could get interesting with those people that have inverters in parallel but different battery packs. Which is possible with all the new EG4 LUX variants.

 

[Bossman253]

Anyone has tested chargeverter with system that there is different inverter than from EG4 company ?, i am thinking to uplink chargeverter to system that has deye connected all the time

 

[agtcovert]

Anyone has tested chargeverter with system that there is different inverter than from EG4 company ?, i am thinking to uplink chargeverter to system that has deye connected all the time

I run two SRNE ASPs and one 280Ah DIY battery currently. I'm waiting for my 64 other cells to get here. So I prop up the system as needed with a Chargeverter. Basically have the voltage set about 0.8V below where I'd normally float the battery. Works just fine, although I haven't done closed loop with it yet, have the JK Inverter BMS. I may test that out today, but it's supposed to be nice, and I'm hoping to get another string of panels online. So we'll see. I also have a second Chargeverter that will be paralleled and switchable between grid and a generator input. I terminate everything on a busbar.

In short, I don't think there's any reason why it wouldn't work with anything that talks a protocol it understands. And open loop -- if it's on the shared bus bar, it'll work fine on voltages. I use the Victron Lynx for busbars, so I fuse it at 125A. Been working like a champ.

 

[Crowz]

Anyone has tested chargeverter with system that there is different inverter than from EG4 company ?, i am thinking to uplink chargeverter to system that has deye connected all the time

Its a battery charger. Nothing more.

Any place you would use a 48v battery charger the chargeverter will work. So if you want to charge a 48v battery you connect the chargeverter to the battery. It doesn't matter if you have a eg4, sungold, srne, maytag or whatever inverter it will work just fine with it since all the thing does is charge the battery. Any company that tells you otherwise is on crack.

 

[Silverwings]

Anyone has tested chargeverter with system that there is different inverter than from EG4 company ?, i am thinking to uplink chargeverter to system that has deye connected all the time

I'm looking at a similar setup, using a EG4 Chargeverter and a Deye (Sunsynk) inverter with a DIY 48V battery box. Did you set yours up in the end? Any problems? Thanks.

 

[wpns]

Why does anyone think there's an issue with charging the battery from another source?

 

[LydMekk]

No problems Silver.
Go ahead.

 

[robby]

Why does anyone think there's an issue with charging the battery from another source?

It can be an issue if your doing it with certain configurations under certain conditions.
For example if you have enough panels to produce 265A of charge into 300A of batteries but the day is very overcast so you turn on a Chargeverter to add in a 100A to boost up the 50A your PV is producing.
It could be problem if the clouds suddenly parted and the full 265A of PV plus the 100A started pumping 365A or 1.2C into your 300A battery bank.
Personally I am not comfortable going above .5C and prefer to stay in the .2C range for both charge and discharge so for even 600A of batteries this would be something to look at depending on how much PV you have.