MyproD

Thank you So seems I am all good! I just want to keep an eye on them and make sure there are no funny things happening.

I monitor my batteries religiously. I spoke to Hubble this morning as I one of my batteries has a cell difference. (Screenshot Attached) When I spoke to Hubble, they said it should not be more than 0.02 volts difference, but then changed to 0.2 volts, and then to 0.15 volts. Mine is sitting at 0.059 I confirmed this with PBM tools too so its not just solarassistants reading. What is the actual maximum this should be and when should I start getting concerned.

On Hold For Now

Does not work with their cable either. That is a tad annoying.

Thanks All I can read the info in PBM tools which means my cable is working ( I think ) I only have the 2.05 Version. Hubble did not send me the 1.46. They said it could be the cable so I have picked up theirs and will try again later. Will report back.

Evening All I have eventually got around to trying to flash with the new Firmware. I get the following error on both batteries... Failed to request MCU Upgrade Command Any ideas? I will chat to Hubble Tomorrow I guess.

@maxxis Awesome, Thank you for the break down. I was going to type something similar here after our discussions on the other forum. Glad to see its solved the issue. Once in AGM V it really does unlock a lot more out of the battery. @Powerforum Store Amazing. Thank you for liaising with Hubble on this. Their support has been topnotch from my side too. I really cant complain. I am sure in the next few months an update will be pushed through and we can use the Lithium setting again. Thanks from my side to all who have shared and got involved.

So after the evening I am sitting at 3% battery according to Solar Assistant but Solarman showing 32% now after yesterdays charging up. Cells are at around 3.5volts and nicely balanced across the range.

I will double check tomorrow. I did not have a look. I think they were all still above 3 volts. Nothing shut down or went into sleep mode.

Alright, so at 44 Volts I managed to charge 9.7kWh today. Solar Assistant is showing 170Ah capacity for the bank 2x Am2's

Morne I agree. They seem super willing to help. I have found the readings are not that accurate. Just to make sure you are getting the correct capacity, use the manual settings. Cutoff at 44 Volts ( some say you can go down to 42 ) and charge up to 53.6. Compare how many kWh you are using and charging. I have found the manual settings give me an extra 20% at 44 Volts. Testing again this eve to see what happens.

Which inverter do you have? Do yourself a favour and set up the parameters manually and unplug your CAN cable. Then let it run for 24-48 hours and measure the kWh hours used and the kWh charged. I am getting huge discrepancies with what the inverter/solar assistant is telling me vs what's happening.

I will monitor this evening by only discharging from 00.00 tonight and see what gets discharged in kWh I took out the Can cable and set the voltages with a shutdown of 45.00 Volts. This is how you set that... https://www.youtube.com/watch?v=UQPtwkWgpEQ Percentages didn't show quite right but the bank took 9.60 kWh of charge today. This evening I will set it to 46 Volts. Seems to be the setting for 20% according to their chart.

@system32 Sorry, I did not mean to hijack this thread at all. Some interesting info since solar assistant has been up for 24 hours. Originally Total AH on Solar Assistant read 190Ah as my first pic above. The second grab was after it was charged up from solar today. I Hubble Support to question the loss of capacity and was told I must bring them in. However, here is another interesting bit of data. Solar Assistant now reads 184Ah and its added another cycle from when the battery dropped to 89% earlier when the washing machine ran.

@HubbleLithium @Energy-Jason Thank you for getting back to us. Spoke to Technical again. Monitored from 1 Day till the next and both batteries Capacity has decreased after one cycle.

I would think it would have been to the BMS Cutoff voltage. Not 100% sure though as I did not ask them.

According to them yes. I cannot read the SOH though only the SOC. It did perform better though. Instead of getting 2.4kWh out the battery it charged to around 3.2kWh

That is the way I would understand it too. That's why my first battery went in. They told me there was probably an imbalance in the cells and the BMS could not balance them. So they did a full discharge and recharge to bring the SOH back to 100% from the 73%. The inverter read it as 100% on my side though. Its a pity we cannot see each individual cells voltages.

Thank you so much! It might be a simple thing that we are missing.

@HubbleLithium Do you have an idea of what we should be getting on these units. As you can see, the above does not seem right. @Energy-Jason Sorry, I don't want to bring you into this unnecessarily but you might have a direct line to Hubble. Could you, if possible, get some clarity on what we should be getting on these units because from what I can see, many are underperforming.

That is correct. Just pull the cable and make sure its set to 53.6v to charge. ( I think ) It needs to be at 100% for a while though for the BMS Balancer to kick in. Looks like there are a few of us having some Issues with these batteries. My Solar Assistant will be arriving today and I will monitor it. From what I can gather, I am getting just under 7kWh from two batteries. They are advertised at 5.5kWh batteries so 11kWh total with 80% usage. factor in 10% for conversion I should be getting just under 8kWh. The one battery is not even a week old. The other is a month and bought from Power-Forum Store. This is the one I took in last week Thursday.

This doesn't look good. I took one battery in and they told me my SOH was at 73% but the inverter was reading it at 100%. Long shot here but have you tried to unplug your Can cable and let the inverter charge with voltages as opposed to the inverter reading the info from the BMS? They told me to do that to balance the cells and banks.

Please let me know what the outcome is.

Also interested in this. I am getting 7kWh from 100% till 20% SOC. One brand new battery and the other around 3 weeks old. The one went in last week as there was an issue ( Cell Imbalance according to Hubble Technical ) Would be keen to see what the answer is.

So, quick update on this. I took the battery in as something wasn't right. i was getting around 2.8kWh from 100% to 20%. Took it in yesterday and they called me today. The BMS was showing 73% even though I unplugged it at 100% I have the logs and offered it to them. Looks like the cells were not balanced and the inverter wasn't pushing enough power through to balance them once it got to 100% on the inverter side. They said they tested a 2000 watt load for over two hours and it passed. Will see what happens...