[RE-wrenches] State of Charge Meter for Sol-Ark

[Chris Mason]

If you know someone who can set up a little raspberry pi with a display,
you try this script. It's called solark-modbus.


On Mon, Feb 5, 2024, 10:33 AM Jason Szumlanski via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:

> I don't want to add a device that provides a separate (different) state of
> charge than what is reported by the BMS itself. That is just going to lead
> to confusion and complaints from the homeowner. I was hoping the Sol-Ark
> could feed SOC and voltage information to a simple external display. I'm
> leaning toward the cheap tablet idea, but that isn't ideal because the
> Sol-Ark app doesn't automatically refresh, so it can't be used to display
> the current SOC without physical interaction. I suppose I could use a web
> browser with an auto-refresh feature. But this isn't really what I had in
> mind.
>
> 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 Mon, Feb 5, 2024 at 9:02 AM Chris Schaefer via RE-wrenches <
> re-wrenches at lists.re-wrenches.org> wrote:
>
>> Why not revert to the tried, trued and tested Trimetric 2030 from Bogart
>> engineering? I miss the old 2020 units that we installed on every off grid
>> system back in the day.
>>
>> Christopher
>>
>> On Sun, Feb 4, 2024 at 11:38 AM Glenn Burt via RE-wrenches <
>> re-wrenches at lists.re-wrenches.org> wrote:
>>
>>> Cheap tablet mounted to the wall?
>>>
>>> -Glenn
>>> Sent from my 'smart'phone, so please excuse typos and spelling errors.
>>>
>>> ------ Original message------
>>> *From: *Jason Szumlanski via RE-wrenches
>>> *Date: *Sun, Feb 4, 2024 10:30 AM
>>> *To: *RE-wrenches;
>>> *Cc: *Jason Szumlanski;
>>> *Subject:*[RE-wrenches] State of Charge Meter for Sol-Ark
>>>
>>> Are there any off the shelf solutions to view battery SOC via a wired
>>> meter mounted remotely on a property? I have a client with a simple voltage
>>> based meter for lead acid batteries that they are accustomed to using as a
>>> quick and approximate gauge of SOC. They want something similar for their
>>> new Sol-Ark with EG4 LL batteries.
>>>
>>> They will have smartphone app visibility, but they want something they
>>> can see inside the house without picking up a phone or going out to the
>>> inverter. Ideally the SOC will come from the inverter or the battery
>>> itself, not an external source (to avoid discrepancies).
>>>
>>> Jason Szumlanski
>>> Florida Solar Design Group
>>> _______________________________________________
>>>
>> _______________________________________________
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