GroWatt not charging battery bank

ISUBrady · Jan 17, 2023

Issue; The Growatt will not charge the battery bank when connected to shore power.

Equipment;
SPF 6000T DVM 120/240v GroWatt
48V 14s battery bank Copied Dave Poz's LG cell battery bank build link below.
JBD 21S 1250A BMS JIABAIDA AP21S001 Li Ion 3.7V PN=16510006
BMS app = Xiaoxiang commercial version

There is not a Solar Array hooked up to it yet, but there will be in a few months.
The issue seems to be that the battery bank is not charging when connected to shore power.
I will attach a notepad file of the growatt and BMS settings that are currently in place.

ISUBrady · Jan 17, 2023

ISUBrady said:
Issue; The Growatt will not charge the battery bank when connected to shore power.

Equipment;
SPF 6000T DVM 120/240v GroWatt
48V 14s battery bank Copied Dave Poz's LG cell battery bank build link below.
JBD 21S 1250A BMS JIABAIDA AP21S001 Li Ion 3.7V PN=16510006
BMS app = Xiaoxiang commercial version

There is not a Solar Array hooked up to it yet, but there will be in a few months.
The issue seems to be that the battery bank is not charging when connected to shore power.
I will attach a notepad file of the growatt and BMS settings that are currently in place.

ISUBrady · Jan 17, 2023

Shore power plug

shot428 · Jan 17, 2023

Is your #1 setting set to UTI ?

I have a 6000T DVM MPV and no solar yet (panels arrived yesterday) and have had no issue charging

ISUBrady · Jan 17, 2023

shot428 said:
Is your #1 setting set to UTI ?

I have a 6000T DVM MPV and no solar yet (panels arrived yesterday) and have had no issue charging

Setting #1 = UTI
That is what it set to yes.

shopman · Jan 18, 2023

Change your battery type to USE and make sure the bulk and float settings are correct for your battery. US2 should work but everyone(myself included) seems to have better results with the USE setting. Change setting 14 to CUT since you don't have solar panels installed. Settings 12 and 13 are interactive. With 12 set to 46v, it won't charge anything until your battery hits that voltage, so raise that setting to be above what your current battery voltage is and it should start charging. Once it starts charging it will go until it hits the voltage set for setting 13. If you want to go higher then that, increase it to your desired voltage. If your battery voltage is higher than setting 13 it also will not charge since it thinks(correctly) that it has hit the charge limit. That should get you going.

ISUBrady · Jan 18, 2023

shopman said:
Change your battery type to USE and make sure the bulk and float settings are correct for your battery. US2 should work but everyone(myself included) seems to have better results with the USE setting. Change setting 14 to CUT since you don't have solar panels installed. Settings 12 and 13 are interactive. With 12 set to 46v, it won't charge anything until your battery hits that voltage, so raise that setting to be above what your current battery voltage is and it should start charging. Once it starts charging it will go until it hits the voltage set for setting 13. If you want to go higher then that, increase it to your desired voltage. If your battery voltage is higher than setting 13 it also will not charge since it thinks(correctly) that it has hit the charge limit. That should get you going.

Thank you the USE and US2 seemed to be part of the issue.
I have adjusted setting 12 to 50V
setting 13 to 56V
setting 14 to CUT( I was mistaken and it was already on CUT actually)
I am no longer getting the WARNING Code #10 for low battery voltage.
It still is not charging the battery bank but I am guessing that is due to a BMS or growatt parameter that has not been met yet for it to start charging.

shopman · Jan 19, 2023

I just looked at your pictures which are low resolution and difficult to see, but what I can make out looks very dangerous with what appears to be exposed buss bars with AC line voltage on them. Those buss bars are not for high voltage AC service. I see a white wire and black wire going to the AC input. Are you feeding it with 120v or 240v? It's designed to have 240v as the input. The white wire indicates a neutral? There is no neutral connection on the AC input. If what I'm saying isn't making sense then please pay a licensed electrician to hook it up for you before something very bad happens.

ISUBrady · Jan 23, 2023

shopman said:
I just looked at your pictures which are low resolution and difficult to see, but what I can make out looks very dangerous with what appears to be exposed buss bars with AC line voltage on them. Those buss bars are not for high voltage AC service. I see a white wire and black wire going to the AC input. Are you feeding it with 120v or 240v? It's designed to have 240v as the input. The white wire indicates a neutral? There is no neutral connection on the AC input. If what I'm saying isn't making sense then please pay a licensed electrician to hook it up for you before something very bad happens.

Sorry for the poor quality pictures they looked good when uploading.
The buss bars do have a covers for them and will be put back on. 99% of the time we are are not connected into shore power and the disconnect switches are turned off. I am also the only one in there on a regular basis and if anyone else goes in I am there also.
Thanks for looking out though!
As far as AC/DC buss bars I was not aware there was a difference for those. What brand and model of buss bar do you recommend there?
The link below are the exact buss bars that are in place.
It is currently being fed by 120v because I was under the impression it could be fed by 120/240v but am now understanding that it can only be fed by 240v.
The power plug inlet that is currently installed is not correct and only 120v from the Plug pictures above so a new one will need to be purchased and installed.
The link below is the one that is installed and incorrect.
I am having an issue finding any sort of replacement for this power plug inlet to meet my needs.
Any suggestions there?
Thanks!

https://www.amazon.com/gp/product/B00GLL3UEK/ref=ppx_yo_dt_b_asin_title_o03_s01?ie=UTF8&psc=1

https://www.amazon.com/gp/product/B07JZ45SBZ/ref=ppx_yo_dt_b_asin_title_o07_s00?ie=UTF8&th=1

GroWatt not charging battery bank

ISUBrady

New Member

Attachments

ISUBrady

New Member

Attachments

ISUBrady

New Member

Attachments

shot428

New Member

ISUBrady

New Member

shopman

Solar Enthusiast

ISUBrady

New Member

Attachments

shopman

Solar Enthusiast

ISUBrady

New Member

Similar threads