Lux ac battery controller

EVandPV

Hi Starfrog,
So after a quick look at your stats and settings I can see your charge and discharge settings look fine, no problem there.
Your on the same firmware as most of us here which I think is the latest, BAAA-1111, so that's fine too. I've not heard anyone say they have problems on that firmware.

I see the issue with your pv being a constant 30-40 watts at night though and also, your consumption seems to be below zero on the graph at times which is pretty odd.
So I would say your ct clamps seem to be ok as your stats are mostly normal apart from the above but might be worth trying swapping them over to rule that out ??
I think Solarchaser could be right about the reactive power setting as far as those 2 issues go. The only problem is that's one of the settings that's missing from the web portal at the moment and not available on the app.

As for your batteries dropping below the minimum of 10% that you have set, that's a real mystery. I noticed they've been as low as 2% some nights which can't be good for any battery.
When they start charging again, (even though grid charging is disabled) they're going from less than 10% to around 25% in an hour yet they're only charging at 350watts !!??
So some very odd things going on there, Pylontech batteries certainly don't behave like that.

I'd ask your installer/supplier to look into this, you've paid good money for a system that's clearly not behaving normally. I might even consider asking them to swap the Aoboets for Pylontechs if they can't fix the problem with them.

Starfrog

Thanks for info I’ll take a look and send info to installer 

Solarchaser

I'd definitely like to see what the aoboet batteries think they are at when the lux moves to charge them, as Scott says getting to that kind of charger percentage with such a small amount of input cant logically be correct,  so something is being picked up wrong or reported wrong.

Might be worth an email to Canhao with your serial number, as he will be able to access your lux data.

Starfrog

Who is canhao ? 

EVandPV

Starfrog said:

Who is canhao ? 

A tech guy at Luxpower in China who seems to deal with most of the queries.
Usually replies pretty quickly but hasn't responded to my query about the missing settings yet.
canhao.chen@luxpowertek.com

Dave_Fowler

Solarchaser said:

I'd definitely like to see what the aoboet batteries think they are at when the lux moves to charge them, as Scott says getting to that kind of charger percentage with such a small amount of input cant logically be correct,  so something is being picked up wrong or reported wrong.

Might be worth an email to Canhao with your serial number, as he will be able to access your lux data.

It may be some consolation that my Aoboet batteries show exactly the same characteristics. When charging off the grid, the dìsplayed SOC rises gradually and then will show a sudden jump of around 15% when the charge stops. If they are being more gradually charged by the solar panels the jump happens almost immediately.
When they are being discharged slowly (base-load levels) the SOC graph gradually decreases, but should there be a short heavy load, the SOC drops instantly, again by about 15%.
I phoned Jake about this and he said this was nothing to worry about as the SOC display was based on the battery voltage only and as the voltage changed very little between full and empty the display was only an indication. 
I find that the SOC display will sit at 99% for several hours whilst the batteries are being charged at one to two kW before the charge reaches 100% and is stopped. 
When being discharged quickly and the charge level drops to 10% it then cuts off, but then the display shows a sudden drop to 6% before recovering to 10% after 15 minutes or so. There can then be a slow rise in SOC and the discharge may resume. But unlike Starfrog I've never seen a charge being taken from the grid causing this rise in SOC. 
One check I have made is to check how much charge the batteries take when charging from 10% to full and this has always been correct. The fact that the SOC is not to be trusted is a pain, but I've learnt to interpret the jumps in the graph. 
I guess this odd behavior in SOC is associated with the Aoboet batteries. 

EVandPV

Dave_Fowler said:

Solarchaser said:

I'd definitely like to see what the aoboet batteries think they are at when the lux moves to charge them, as Scott says getting to that kind of charger percentage with such a small amount of input cant logically be correct,  so something is being picked up wrong or reported wrong.

Might be worth an email to Canhao with your serial number, as he will be able to access your lux data.

It may be some consolation that my Aoboet batteries show exactly the same characteristics. When charging off the grid, the dìsplayed SOC rises gradually and then will show a sudden jump of around 15% when the charge stops. If they are being more gradually charged by the solar panels the jump happens almost immediately.
When they are being discharged slowly (base-load levels) the SOC graph gradually decreases, but should there be a short heavy load, the SOC drops instantly, again by about 15%.
I phoned Jake about this and he said this was nothing to worry about as the SOC display was based on the battery voltage only and as the voltage changed very little between full and empty the display was only an indication. 
I find that the SOC display will sit at 99% for several hours whilst the batteries are being charged at one to two kW before the charge reaches 100% and is stopped. 
When being discharged quickly and the charge level drops to 10% it then cuts off, but then the display shows a sudden drop to 6% before recovering to 10% after 15 minutes or so. There can then be a slow rise in SOC and the discharge may resume. But unlike Starfrog I've never seen a charge being taken from the grid causing this rise in SOC. 
One check I have made is to check how much charge the batteries take when charging from 10% to full and this has always been correct. The fact that the SOC is not to be trusted is a pain, but I've learnt to interpret the jumps in the graph. 
I guess this odd behavior in SOC is associated with the Aoboet batteries. 

When your Aoboets grid charge from below 10%, do they charge at 350watts up to 25% like Starfrogs' ?
Have you also seen them drop as low as 2% ?

Dave_Fowler

EVandPV said:

Dave_Fowler said:

Solarchaser said:

I'd definitely like to see what the aoboet batteries think they are at when the lux moves to charge them, as Scott says getting to that kind of charger percentage with such a small amount of input cant logically be correct,  so something is being picked up wrong or reported wrong.

Might be worth an email to Canhao with your serial number, as he will be able to access your lux data.

It may be some consolation that my Aoboet batteries show exactly the same characteristics. When charging off the grid, the dìsplayed SOC rises gradually and then will show a sudden jump of around 15% when the charge stops. If they are being more gradually charged by the solar panels the jump happens almost immediately.
When they are being discharged slowly (base-load levels) the SOC graph gradually decreases, but should there be a short heavy load, the SOC drops instantly, again by about 15%.
I phoned Jake about this and he said this was nothing to worry about as the SOC display was based on the battery voltage only and as the voltage changed very little between full and empty the display was only an indication. 
I find that the SOC display will sit at 99% for several hours whilst the batteries are being charged at one to two kW before the charge reaches 100% and is stopped. 
When being discharged quickly and the charge level drops to 10% it then cuts off, but then the display shows a sudden drop to 6% before recovering to 10% after 15 minutes or so. There can then be a slow rise in SOC and the discharge may resume. But unlike Starfrog I've never seen a charge being taken from the grid causing this rise in SOC. 
One check I have made is to check how much charge the batteries take when charging from 10% to full and this has always been correct. The fact that the SOC is not to be trusted is a pain, but I've learnt to interpret the jumps in the graph. 
I guess this odd behavior in SOC is associated with the Aoboet batteries. 

When your Aoboets grid charge from below 10%, do they charge at 350watts up to 25% like Starfrogs' ?
Have you also seen them drop as low as 2% ?

I've never seen them as low as 2%. 6% is the lowest I've seen them, but I have seen them so low quite a few times. It's never been any other value when below 10.
I don't think I've ever charged them starting at 6% because they recover to 10% quite quickly - usually less than 15 minutes. 

Starfrog

To be honest the really weird charging and discharging has only really started after LuxPower took away nearly all the various settings panel options ..... 

mickyduck55

I have just contacted LUX as well to ask about the removal of the configuration options.. maybe if we all start complaining they will restore access.... or maybe not