mixing EG4 PowerPro & EG4 LL-S

[bsr]

Hello

We setup our system to power a farm market & small kitchen. Started off with 2 xw pro, but got 4 more to have 3 phase stacked configuration.

I currently have 2 EG4 PowerPro WallMount batteries ( each 280Ah | 14.3kWh)
To increase the storage, ordered EG4 LL-S Lithium Batteries Kit | 30.72kWh | 6 Server Rack Batteries

1. What is the best way to physically connect them.
Researching on this, using a common DC bus is the most common option. Victron Energy Lynx Power In is a good option, but max out atr 1000A. Is a custom bus bar the best option? can you please give a good resource or recommendation for building one, which is future proof. Say, if we add one more set of 6 Server Rack Batteries.

2. I read somewhere EG4 PowerPro uses the same BMS as EG4 LL-S. Can I connect them together though battery COM port? Will they work as single unit, and distribute the load.

Thanks
bsr

 

[bsr]

@eg4 @EG4TechSolutionsTeam can you please help with this request. I also submitted the form of eg4 website, and yet to get a response. Greatly appreciate your help.

 

[Bajanmonkey]

Hello

We setup our system to power a farm market & small kitchen. Started off with 2 xw pro, but got 4 more to have 3 phase stacked configuration.

I currently have 2 EG4 PowerPro WallMount batteries ( each 280Ah | 14.3kWh)
To increase the storage, ordered EG4 LL-S Lithium Batteries Kit | 30.72kWh | 6 Server Rack Batteries

1. What is the best way to physically connect them.
Researching on this, using a common DC bus is the most common option. Victron Energy Lynx Power In is a good option, but max out atr 1000A. Is a custom bus bar the best option? can you please give a good resource or recommendation for building one, which is future proof. Say, if we add one more set of 6 Server Rack Batteries.

2. I read somewhere EG4 PowerPro uses the same BMS as EG4 LL-S. Can I connect them together though battery COM port? Will they work as single unit, and distribute the load.

Thanks
bsr

I was told by SS Support that they are not compatible for communications. To answer your second point/question.

 

[bsr]

I was told by SS Support that they are not compatible for communications. To answer your second point/question.

Thank you so much for the response. I have closed loop setup of PowerPro with my Schneider inverters. I am not sure how to integrate the EG4 LL-S into this. The inverter setup needs single DC bus. I wonder how typically this is handled. Thanks again

 

[Quattrohead]

It is the same BMS and you should be able to parallel it up to your power pro batteries. Each Power pro battery has a 600 amp busbar in it and quite a few of us are using those instead of external bus bars, but do whatever you feel more comfortable with.

 

[TM48]

Your inverter(s) are only going to draw so much. The bus bars only need to handle that much.

 

[bsr]

Your inverter(s) are only going to draw so much. The bus bars only need to handle that much.

Thank you. I ordered 4 more XW pro, so 6 in total. So it will be 34.56 kVA continuous and 43.2 kVA peak in 3 phase configuration (120V). I am not so sure that I am calculating right, but looks like the mac current will be 360A (43.2 * 1000 / 120). Looks like thats not so bad thank you so much for giving the pointer, I was worried the total amperage of the battery. I guess Victron power in would be a good choice then.

 

[TM48]

Thank you. I ordered 4 more XW pro, so 6 in total. So it will be 34.56 kVA continuous and 43.2 kVA peak in 3 phase configuration (120V). I am not so sure that I am calculating right, but looks like the mac current will be 360A (43.2 * 1000 / 120). Looks like thats not so bad thank you so much for giving the pointer, I was worried the total amperage of the battery. I guess Victron power in would be a good choice then.

You should look up the max DC amps specification and use that.

 

[bsr]

Thank you.

This are the specs
XW Pro 6848 NA (120 VAC)
DC Current at Rated Continuous Power(Inverter Mode): 180 A
Maximum Charge Rate (Charger Mode): 120A

So for 6 inverters: 1080A


Victron Lynx Power In | 1000A
Current rating: 1000 Adc continuous

I am not sure I will be using all inverter at full rate, and do you know a better ready made solution? Though I prefer a premade one, If there is a guide to follow to custom build one, I would do that as well. Reading few of the threads in this group.

Thanks
bsr