I notice after a few days of use my Hubble AM2 Battles to stay on 100% SOC. Will mostly stay on between 99 or 98%. Is this something I have to worry about. Or just normal.......

8kw Sunsynk inverter with no PV yet. Only for small office backup.

@Namreh Do you really think, it reasonable and considerate toward the other forum members to start a new treat for every single question you have? 

Besides, since you are an installer, you are supposed to know the system and provide the answers to your clients, if you are charging them money!

Edited October 7, 20223 yr by PowerUser

3 minutes ago, PowerUser said:

@Namreh Do you really think, it reasonable and considerate toward the other forum members to start a new treat for every single question you have? 

Besides, since you are an installer, you are supposed to know the system and provide the answers to your clients, if you are charging them money!

I thought this is why the forum is there, to learn and share about issues. I am new the the Sunsynk inverters as well as lithium battries and hence the questions. So what you saying is I must rather wait until I have 20 questions and hopefully get answers on them. Please let me know what do you suggest?

2 minutes ago, Namreh said:

I thought this is why the forum is there, to learn and share about issues. I am new the the Sunsynk inverters as well as lithium battries and hence the questions. So what you saying is I must rather wait until I have 20 questions and hopefully get answers on them. Please let me know what do you suggest?

Yes, that's the purpose of the forum but in general the forums are not there to spoon feed everyone. One can only learn, if they put the effort themselves to go through the products documentation, search the forums, watch the available product videos and try to understand how everything works first.

I would suggest to first read the manuals. Then search the forum. I think, 99.9% of your questions are answered already, either in the manual or in other treads on this very same forum.

Then, if something is still unclear, you can open 1 (one) tread - call it "Namreh's school" and every time, you have a question post in that same tread.

There are thousands of members on this forum as well as any other forum on the internet. If every member starts opening a new tread about every single questions they have, what do you think will happen? Are the forums going to be usable in that format?

5 minutes ago, PowerUser said:

Yes, that's the purpose of the forum but in general the forums are not there to spoon feed everyone. One can only learn, if they put the effort themselves to go through the products documentation, search the forums, watch the available product videos and try to understand how everything works first.

I would suggest to first read the manuals. Then search the forum. I think, 99.9% of your questions are answered already, either in the manual or in other treads on this very same forum.

Then, if something is still unclear, you can open 1 (one) tread - call it "Namreh's school" and every time, you have a question post in that same tread.

There are thousands of members on this forum as well as any other forum on the internet. If every member starts opening a new tread about every single questions they have, what do you think will happen? Are the forums going to be usable in that format?

In my opinion, this is a bit harsh. As an end user, and someone still with lots to learn and lots of questions, I actually personally think its better to have individual threads with clear descriptions and titles which makes it easier to search for key words related to questions or issues I may have. Just my 5c...

OK so what's the answer to the original question? I would also like to know this answer as it's probably the combination of components I'm going to start with. 

2 hours ago, Chris_S said:

OK so what's the answer to the original question? I would also like to know this answer as it's probably the combination of components I'm going to start with. 

There's always a slight leech from the inverter that will slowly drain batteries when they aren't being charged

At night I have a ~2A charge setting to keep mine topped up

1 hour ago, PsyWulf said:

There's always a slight leech from the inverter that will slowly drain batteries when they aren't being charged

At night I have a ~2A charge setting to keep mine topped up

Thanks for the reply. My unit is permanently connected to grid only running off battery during loadshedding.  Client is adding panels later.  Will the SOC  still drop even connected to grid? According to @Hubnlelithium this is normal. I would think it would charge back to 100% SOC after loadshedding

7 hours ago, PowerUser said:

Besides, since you are an installer, you are supposed to know the system and provide the answers to your clients, if you are charging them money!

1 hour ago, Namreh said:

Thanks for the reply. My unit is permanently connected to grid only running off battery during loadshedding.  Client is adding panels later.  Will the SOC  still drop even connected to grid? According to @Hubnlelithium this is normal. I would think it would charge back to 100% SOC after loadshedding

I'm going to come back to this. I don't like being the vark in the tale, but seriously, this is poor form. The OP is probably receiving good money from a client and turning to a free public forum for advice. I would expect an installer to be well-trained in the product he is offering, or at least to turn to the manufacturer to aid with troubleshooting, or in the worst case admit to the client that he is out of his depth. i don't mind adding my 2c worth to a new end user looking to make sense of it all if I can be of any help, but this sits dwars in my throat.

3 hours ago, Namreh said:

Thanks for the reply. My unit is permanently connected to grid only running off battery during loadshedding.  Client is adding panels later.  Will the SOC  still drop even connected to grid? According to @Hubnlelithium this is normal. I would think it would charge back to 100% SOC after loadshedding

This is 100% correct as Hubble responded. Just accept it and move on. All good chargers will allow a battery to 1st drop in charge before starting to charge again. All the circuits in a inverter cannot run on air. It needs a supply and will get it from the battery before reaching a point of starting to charge from grid again.

In all PV inverters you will find these settings in the manual.

There is no prize for the person who asks the most questions. 🤔🤔🤔

It is legit scary that OP is an installer.

With that said, you typically charge the batteries up to a certain point to get all cells up to the same voltage.  Then you back off a bit and you'll see a slight "dip" in SOC.  Pumping the voltage back up will needlessly shorten the life of the battery.

Probably the OP installed the inverter with a "float" charge setting != "bulk" charge setting.

Or in my case I only charge up to ~3.4v per cell and then keep it there, I never bother to get the cells up to 3.65v per cell because that last 4% (per my BMS) isn't worth the absurd amount of extra wear it has on batteries.  My configuration is LiFEPO₄ so the voltages and charge strategy is best not to be applied to a hubble product.

Edited October 11, 20223 yr by Gnome

7 minutes ago, Gnome said:

It is legit scary that OP is an installer.

With that said, you typically charge the batteries up to a certain point to get all cells up to the same voltage.  Then you back off a bit and you'll see a slight "dip" in SOC.  Pumping the voltage back up will needlessly shorten the life of the battery.

Probably the OP installed the inverter with a "float" charge setting != "bulk" charge setting.

Please explain what is scary?

The settings is as per the settings that was given by HUBBLE which is 53.6volt for float, bulk etc. These settings is only used if no comms is setup between the battery and the inverter as the BMS should manage the voltages. The current SOC is sitting at 91% as it is dropping everyday by about 1%. I went through all the training material and videos and did not see anything related to that.

Edited October 11, 20223 yr by Namreh

On 2022/10/07 at 1:05 PM, Namreh said:

I thought this is why the forum is there, to learn and share about issues. I am new the the Sunsynk inverters as well as lithium battries and hence the questions. So what you saying is I must rather wait until I have 20 questions and hopefully get answers on them. Please let me know what do you suggest?

You are correct, this is the place where to get help or find more info. You are allowed to start as many threads and ask as many questions as you want, some guys will answer. Do not worry about negative responses from people who can't help you, you find such people in all forums. Just ignore them and wait for the answer from the people who actually want to assist. It is strange that people are more worried about you charging your clients or that you are an installer and can't be spoon fed. We are all here to learn and share knowledge, no one knows everything and there is no silly questions 

Edited October 11, 20223 yr by hoohloc
gramma

1 minute ago, hoohloc said:

You are correct, this is the place where to get help or find more info. You are allowed to start as many threads and ask as many questions as you want, some guys will answer. Do not worry about negative responses from people who can't help you, you find such people in all forums. Just ignore them and wait for the answer form the people who actually want to assist. It is strange that people are more worried about you charging your clients or that you are an installer and can't be spoon fed. We are all here to learn and share knowledge, no one knows everything and there is no silly questions 

Thanks for this!

On 2022/10/07 at 12:59 PM, PowerUser said:

@Namreh Do you really think, it reasonable and considerate toward the other forum members to start a new treat for every single question you have? 

Besides, since you are an installer, you are supposed to know the system and provide the answers to your clients, if you are charging them money!

@PowerUser  This is a nonsense response.  It is an open forum and legitimate question asked on topic.

Powerforumites shall conduct themselves as per the Terms of Service. There are no sanctions for members who ask legitimate and reasonable questions, and there are also no "special rules" for the type of questions that installers, nor any other vocation for that matter, may ask.

Members are also expected to keep personal grievances out of the public forums, that is what private messaging facilities are for. 

 

 

On 2022/10/07 at 12:16 PM, Namreh said:

I notice after a few days of use my Hubble AM2 Battles to stay on 100% SOC. Will mostly stay on between 99 or 98%. Is this something I have to worry about. Or just normal.......

8kw Sunsynk inverter with no PV yet. Only for small office backup.

Please cycle the AM2s. They don’t like to be kept at 100% SOC. So once a week, simulate loadshedding and get it to 20% and back up to 100%. I have seen too many sites that are purely backup where this occurs. 

7 minutes ago, Leshen said:

Please cycle the AM2s. They don’t like to be kept at 100% SOC. So once a week, simulate loadshedding and get it to 20% and back up to 100%. I have seen too many sites that are purely backup where this occurs. 

Thanks Leshen will definitely give your suggestion a go

Makes no sense to cycle lithiums , the only reason would be if the BMS is of a poor design and cannot calculate SOC adequately. 

Just an update. Since the Cloudlink installation SOC is all sorted. Not sure if Hubble perhaps upgraded the firmware.

33 minutes ago, NoordSolar said:

Makes no sense to cycle lithiums , the only reason would be if the BMS is of a poor design and cannot calculate SOC adequately. 

No lithium battery likes to be kept at 100% SOC permanently. It has nothing to do with the BMS. 

3 hours ago, Namreh said:

Just an update. Since the Cloudlink installation SOC is all sorted. Not sure if Hubble perhaps upgraded the firmware.

Are they now able to do that now then? About 2 months ago I was told by their support that they cannot do anything yet with Cloudlink, which in my opinion is a total waste of time, Solar Assistant offers much better info. 

3 hours ago, CyberJoe said:

Are they now able to do that now then? About 2 months ago I was told by their support that they cannot do anything yet with Cloudlink, which in my opinion is a total waste of time, Solar Assistant offers much better info. 

Agree, I have Solar Assistant on one of my other units and they work flawlessly.  Not sure but since I installed the Cloudlink my SOC issues is sorted

 

16 hours ago, Leshen said:

No lithium battery likes to be kept at 100% SOC permanently. It has nothing to do with the BMS. 

I never indicated it should be at 100 % , best to keep it around 50-70% SOC for for good lifetime , however most most charging algorithiums cannot let go of of the past lead acid algorithms