TechGeek777:


I heard they need 2 reference with GT Dollar account before one can open such account.

Is it true?

Yes

EduTechTainMent:


Which of the banks dollar mastercard did you make use of?

GT bank

futurenix:
Please house which payment method is the best now for paying suppliers in China.

If you have your Dollar MasterCard, ask them to prepare the payment through that.

I just paid for some solar goods yesterday with that it went through with just one click.
I paid 355 dollars and the charges were 10.69 dollars or thereabouts.

Ferdiwar:
Was the BMS connected to the cells when you connected the 9v battery to the terminals of the BMS?

If no, connect it to the cells as it should be.

The introduction of the 9v battery is to wake up the BMS in case it is sleeping.

Yeah. It was connected. The Bluetooth light is on, the other (probably operational light) is on but dimmer compared to when the BMS is working normally and it is the one blinked continuously after connecting the 9v battery.

olopan:
No picture,was attached

Ok. Here it is as attached of my Xiaoxiang app and the picture of the BMS

Ferdiwar:
I can't really remember if it's the old JBD or JK BMS that usually behave like this,but you can also try this.

Get a small battery of 8v (like the mic battery) and connect it between the 2 terminals of the BMS (the big wire that connects to the negative of the battery bank and the big negative output wire) for 2 to 5 seconds and see if it wakes the BMS.

Thanks for the hint.
I used my 9V multimeter battery to make that connection you suggested. One indicator light flash fast continuously after reaching about 5 seconds I stopped. I connected the BMS to my inverter and it started discharging for few seconds and then get disconnected. It keep doing this continuously. When I connected the mppt solar charge controller it did not deliver charge.
Then I smell like something is burning and then I disconnected it.
I may likely take it to repair workshop now.
If it didn't work, I may have to by a JK BMS.

ojesymsym:
I have been in this situation before, what I had to do was charge the batteries without the BMS to bring up the voltage above the cutoff point, after which I was able to turn it back on on the app.

Sometimes it is that straight forward, sometimes it is not. When it is not, I lose track of what eventually I did to make it work but just know that when you get the voltage up, everything else you now need to do is within the app itsellf

Thank you for the response. I have tried several ways (which I read on Will Prowse website) but not successful. Some one also told me to charge up the battery and try. I charged it up to 3.34v but it did not resume. But I read someone who had similar problem had to almost charge the cells to 3.375v and it just come back.

I may have to do that.

The annoying thing is that Jiabiada website is not responding to email.

NiyiOmoIyunade:
I read later where you said your cells are well balanced.

Two possibilites;

Either your BMS parameters were set too conservative for the charge parameters you want to use OR your cells exhibit a larger voltage drift than you have noted under charge or discharge with high currents.

Do you have access to your BMS protection parameters and can you publish/screenshot them here?

When the BMS cuts off charge/discharge, what error message is logged?

In any case you want far more conservative charge settings on your inverter 55.4v absorb and 53.6v float.

The above settings are 3.46v per cell and 3.35v per cell for absorb and float respectively - at a 3.35v per cell float you can be sure no extra current is making it into the cell and no possibility of overcharging it even over the long run.

Observe the battery pack voltage delta (mV difference between highest and lowest cell as well as highest cell voltage) when the inverter is in absorb and also whatever error message is logged when the BMS cuts off power - these will clue you in what is going on and where to direct your efforts.

Hello and Good morning Mr Niyi. my JBD BMS will not allow charge or discharge and this happened after my 24V LIFEPO4 battery drained to zero percent (0%) (from Xiaoxing app). When the BMS is connected to the SCC, the voltage will rise quickly and register full charge delivering 0 amps. I charge it directly via the SCC to about 36% and still the BMS did not start. When I connected the load via inverter the voltage of 26.1V quickly drained to 17.3v and the inverter disconnected and battery pack voltage returned to 26.1v.
The specs of the BMS is (AP 20S006 20S 200A).
I tested charging the battery pack directly with SCC and also discharging with an inverter and it works.
It means it is the BMS that is the issue.
Kindly help with the solution.
Attached is the picture of the BMS model too.
Thanks

olopan:
The GUI of these BMS with parameters display is quite easy to understand and yet detailed.

Hello, my JBD BMS will not allow charge or discharge and this happened after my 24V LIFEPO4 battery drained to zero percent (0%) (from Xiaoxing app). When the BMS is connected to the SCC, the voltage will rise quickly and register full charge delivering 0 amps. I charge it directly via the SCC to about 36% and still the BMS did not start. When I connected the load via inverter the voltage of 26.1V quickly drained to 17.3v and the inverter disconnected.
The specs of the BMS is (AP 20S006 20S 200A).
I tested charging the battery pack directly with SCC and also discharging with an inverter and it works.
It means it is the BMS that is the issue. I tried jump starting but it did not work or I didn't do it correctly.
Kindly help with the solution.
Attached is the picture of the BMS model too.
Thanks

isangjohnson:

You may wish to check view pages back for people's review. Her previous positive review attracted me to her but things has changed probably due to the volume of sales she's handling.
To the best of my knowledge, she doesn't pay much attention to the shipping of cells. She might not even remit the shipping fees you'll pay to the clearing agent and you might end up setling the clearing agent here in Nigeria when your cells finally arrive.
You might also be unlucky to see your cells due to mix up with other unlabeled cells caused by her careless shippers. Those that buy volume of cells at a time from her do not experience this issue.
If you must buy from her, I advise you look for your shipping agent. This will give you rest of mind.

Thanks bro!

isangjohnson:

If at all you're buying from Selina Li, don't allow her to handle your shipping else you'll pay twice and that's if you'll be lucky to see your cells.
Most of us that paid her for the shipping are yet to get refund.

But many people have reported positive comments doing business with her. What do you mean by paying twice? To whom?
I'm planning to order my cells soon from her company.
Please, expatiate.
Thanks.

mctfopt:



I think this is the company he's taking of

https://dery.m.en.alibaba.com/

I got it. Thank you Bro.

FireTheSun:


I just got delivery of 32 Units of 280Ah Cells from a Supplier in China.
I will recommend you use the Company.
Just search for Shenzen New Dery Energy Company, on alibaba.
The name of the Lady is "Selina Li".

I had an issue with 4Cells in the delivery because the Shipper she used, allowed 4Cells to be damaged, outof the 32 Cells and the Clearance in Lagos was a bit high but l got to know that she had changed the Shipper to a better one now.
Her Guaranty is also good as she is replacing the damaged Cells.
A few people here are expecting some shipment from her in a two-three Months from now.

If you reach her on time, she might be able to pack your purchase in the current Shipment.

BTW: I got introduced to her by @valto.

Hello, I searched for this company and they are nowhere to be found on Alibaba. Is there issue of spelling?
Thanks