lkpat
Executive Member
Are your batteries connected via data cable to the inverter CAN bus? Not happy with the installer, pay someone else to fix it.
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Question of the Day: Which compact crossover would you choose?
All things Sunsynk (Deye, Inge, etc...)
- Thread starter JerryMungo
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Grubscrew
Executive Member
Jip, but I see on my Deye it also has sticker that says SA version and few others that posted about their Deyes.
lkpat
Executive Member
It's preloaded with SA firmware (less chinglish) and doesn't need tweaking for our grid settings. That's what I've been told.
I would still change the battery settings to match your actual capacity. As mentioned above it shouldn’t change anything if comms 100% working.
Gordon_R
Honorary Master
Not sure if ours is 'locked' or it's a firmware issue, but I can't see the BMS screen on our inverter. Not a problem since everything else works fine. I just wanted to see the battery voltage limits, etc. P.S. The up/down scroll buttons are also glitchy.
lkpat
Executive Member
Speaking of the Li-BMS screen, anybody know if the SOH value there is accurate? Mine still says 100%. Anybody with older batteries showing lower number yet?
I was trying to figure out if I could get that value from the Sunsynk API.
I was trying to figure out if I could get that value from the Sunsynk API.
Gordon_R
Honorary Master
No, I can see all of those screens. Not the BMS voltages sub-screen. I think the reason may be as follows:
Edit: I verified this by turning off the Li-BMS option, and the BMS screen become available. It was populated with the voltage settings for a Hubble AM2 Li-NMC battery (different from a LiFePO4).
Last edited:
RonSwanson
Honorary Master
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Now you get hold of your installer and ask him why the batteries are not allowing charge nor discharge.
It could be because they are unbalanced, so if you want to DIY, you could try discharging each battery individually to 50%, and then connect them all 3 up and charge to 100%.
Speedster
Honorary Master
I'm on 97%
This means the batteries are connected via the data cable right? I thought I wouldn't need to change settings manually if it's connected like this... But it is still only picking up 200ah and all the battery lights shows as charged to 80%.
How would I go about draining them individually? Unplug them one by one?
Installer said inverter must be reset. If he doesn't come tomorrow then I may need to get someone else.
Attachments
Did you try manually setting to 300ah as previously suggested?
Speedster
Honorary Master
When the installer comes give him a proper PK. Those batteries should never have been connected like that - absolute rookie error. Positive and negative connections to the inverter should come from opposite sides of the bank.
Grubscrew
Executive Member
Not in disagreement from me about that. But I assume if the batteries were setup correctly and the comms are connected correct the BMS should negate the issue of not having the cables connected optimally?
I've seen both ways recommended in battery manuals.
But ideally I think they should go the busbar route with equal length cables from battery to common busbar.
Speedster
Honorary Master
Unfortunately comms can't override physics.
Speedster
Honorary Master
I'd love to see a manual which recommends the connections that he has.
RonSwanson
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Yes, it looks like there is BMS to Inverter comms.
From reading the Volta manual, the battery defaults to talk with a handful of inverters, Deye / Sunsynk is one of these, so yes, those parameters and numbers on the LiBMS screen are coming from the BMS.
I am not sure what you mean about the
I don't see 200aH on any of your screens. Are you talking about the battery bank's capacity? You usually set that manually in the battery screen.
Ensure that only one battery, is connected, and that it has comms. The LiBMS screen should change to reflect only one battery (100A discharge rate). Adjust the Battery discharge rate in the inverter (the Voltas should be able to handle 100A), and make adjustments to the system mode screen tio allow discharge until 50%. Make some hot water / put on a load. Keep watching the LiBMS screen, when the battery reaches 50%, disconnect it and connect another.
You can try that too, do a factory reset.
Maybe not showing 3 batteries , but here's one showing 2. Connections to inverter are coming from one battery, and not positive from 1 and negative from other.
Or perhaps I missed something you saw in the connections that I didn't see
Felicity Solar Battery Manual
Speedster
Honorary Master
I guess this is yet another reason I'll never touch Felicity. Simple physics says the top battery is going to work much harder than the bottom one