[RE-wrenches] EG4 Server Rack Batteries With Solar Assistant

[Jason Szumlanski]

SA definitely supports their batteries via RS-485, but there isn't any
information on whether this will work using the communication hub. This
system has 24 batteries with two networked groups of 12 batteries (16 is
the max each group). Each group plugs into the hub for unified reporting.
There are additional ports available on the hub, so I'm guessing I can get
this to work, but which port and what type of cable is the real question.
This battery system is not connected in a closed loop with the
inverters, so I have the inverter CAN1 port available as well as the BAT
CAN2 and the INV RS485-3 port. I'm thinking that last one is my best bet,
but I don't know what pinout the USB to RS485 would use.


Jason Szumlanski
Principal Solar Designer | Florida Solar Design Group
NABCEP Certified Solar Professional (PVIP)
Florida State Certified Solar Contractor CVC56956
Florida Certified Electrical Contractor EC13013208


On Wed, Jun 11, 2025 at 8:57 AM Jay via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:

> According to their website it does support eg4 inverters and batteries.
>
> On Jun 11, 2025, at 4:54 AM, Jason Szumlanski via RE-wrenches <
> re-wrenches at lists.re-wrenches.org> wrote:
>
> 
> Has anyone successfully connected EG4 LifePower4 batteries to Solar
> Assistant via the EG4 Communications Hub? I have more than 16 batteries at
> a site where I would like to get SA data. There is already a Communication
> Hub there that works to see all 24 batteries.
>
> Jason Szumlanski
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