All things Sunsynk (Deye, Inge, etc...)

So with the cloud this morning, and LS, and my wife doing wife things with the heaters etc. the batteries went flat at about 5%.

Problem is the sun is out now and the panels aren't charging the batteries. They come online for about 5 seconds and then die. Tried a complete restart of everything but can't seem to get the panels to consistently output power. LS is only due to end at 2pm. Any ideas?
 
Mike Hoxbig said:
So with the cloud this morning, and LS, and my wife doing wife things with the heaters etc. the batteries went flat at about 5%.

Problem is the sun is out now and the panels aren't charging the batteries. They come online for about 5 seconds and then die. Tried a complete restart of everything but can't seem to get the panels to consistently output power. LS is only due to end at 2pm. Any ideas?
Click to expand...
Trying killing all the load and let it kick in
 
Mike Hoxbig said:
So with the cloud this morning, and LS, and my wife doing wife things with the heaters etc. the batteries went flat at about 5%.

Problem is the sun is out now and the panels aren't charging the batteries. They come online for about 5 seconds and then die. Tried a complete restart of everything but can't seem to get the panels to consistently output power. LS is only due to end at 2pm. Any ideas?
Click to expand...
That's a bummer - when you did the restart procedure i am assuming you didn't get a Normal light on?
 
Mzezman said:
That's a bummer - when you did the restart procedure i am assuming you didn't get a Normal light on?
Click to expand...
Yep followed the same steps you posted the other day, Normal light doesn't come on. Every few minutes the panels come on and die after about 5 seconds...
 
Mike Hoxbig said:
Yep followed the same steps you posted the other day, Normal light doesn't come on. Every few minutes the panels come on and die after about 5 seconds...
Click to expand...
by coming on you do you mean the DC light comes on then it goes off as well?
 
I guess another thing you can try is to turn off the AC output breaker so only batteries can draw power
 
Mzezman said:
@Mike Hoxbig - any luck?
Click to expand...
Yeah finally, literally just this second. Found a bloody weird fix in case this happens to anyone when their battery runs flat.

You have to change the battery mode to voltage on this screen then apply.

1000012170.jpg

When everything comes back up normally, you can switch back to Lithium.

Edit: switching back to Lithium caused it to happen again. Leaving it in voltage mode for now until Eskom power returns. I think something weird happens to the BMS when it runs flat in Lithium mode...
 
Last edited:
Mike Hoxbig said:
Yeah finally, literally just this second. Found a bloody weird fix in case this happens to anyone when their battery runs flat.

You have to change the battery mode to voltage on this screen then apply.

View attachment 1557073

When everything comes back up normally, you can switch back to Lithium...
Click to expand...
Thanks for the share. Hoping to never need this info but banking it in case I do.
 
Mike Hoxbig said:
Yeah finally, literally just this second. Found a bloody weird fix in case this happens to anyone when their battery runs flat.

You have to change the battery mode to voltage on this screen then apply.

View attachment 1557073

When everything comes back up normally, you can switch back to Lithium.

Edit: switching back to Lithium caused it to happen again. Leaving it in voltage mode for now until Eskom power returns. I think something weird happens to the BMS when it runs flat in Lithium mode...
Click to expand...
What's your battery % now? Would "Activate battery" not help with the LIthium setting? Best to leave it though
 
Mike Hoxbig said:
Yeah finally, literally just this second. Found a bloody weird fix in case this happens to anyone when their battery runs flat.

You have to change the battery mode to voltage on this screen then apply.

View attachment 1557073

When everything comes back up normally, you can switch back to Lithium.

Edit: switching back to Lithium caused it to happen again. Leaving it in voltage mode for now until Eskom power returns. I think something weird happens to the BMS when it runs flat in Lithium mode...
Click to expand...
Odd I’ve run mine to 0% in lithium and it came back as expected
 
Mzezman said:
What's your battery % now? Would "Activate battery" not help with the LIthium setting? Best to leave it though
Click to expand...
It's currently on 49.9V, don't want to switch back to Lithium just yet and poke the bear. "Activate battery" did nothing.
semaphore said:
Odd I’ve run mine to 0% in lithium and it came back as expected
Click to expand...
It could be a Dyness BMS thing. I recall @SauRoNZA mentioning he had to do something similar to get everything to come back up...
 
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