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JBD BMS current issue

Arron_w

New Member
Joined
Mar 11, 2024
Messages
1
Location
Australia
Hi All,

I have 3 DP04S007 100A JBD BMS units that are not showing any discharge current in the Bluetooth app or when connected to JBD Tools/ Overkill solar windows app.

I have tried the zero current calibration in both with the windows apps as well as the bluetooth Xiaoxiang and overkill solar app on both android and apple.

I have tried using the settings files that i wrote myself, One from overkill solar as well as the original file from JBD.

No matter what i try i cant get it to display.

I had one unit showing current when i originally powered it up but once i changed the settings it no longer shows the current or power being used. ( BMS is still working and allowing current through just not showing in the apps )

Any help or suggestions would be great. Does anyone know if you can factory reset the BMS and start again??
 
Salut,din păcate și eu ma confrunt cu aceeași prob,am fi recunoscători dacă ar fi o pers pe aici sa ne poată ajuta cu mai multe detalii sau cu un sfat,va multumim mult,
 
originally powered it up but once i changed the settings
Show screen shots of the settings you used.
Using the Overkill app ensure the setting 'SW switch ciruit enable' is in the off state.
 
Am atașat aici câteva detalii ,dacă acum voi descarca la putere de 400w apare pe bms 15/20 w,dacă încarc cu 1000w arata incarcarea la 45w
 

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Make sure that you are charging/discharging through the C- cable, not the B- cable.
 
Has anyone figured this out yet ? Just replaced old JBD BMS with new one , now have no charge or discharge display !
 
1727112980549.png

The first 4 setting above look backwards to me ..... and I don't think the discharge over current should be a negative number.

Unrelated, but I also wouldn't start balance at 3.3V ..... I would set it closer to 34.
 
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I'm not sure how to explain it to you any better ..... for instance with the cell over voltage.
1727460921089.png

If you are going to use those values, I think the 3500 should be in the left column and the 2800 in the right .... same for all 4 of the settings I mentioned in my other post.

The discharge over current should no be a negative number. Both the charge and discharge current should read as a positive number in the App.
 
I just took a quick look at the 12V 100 AH battery I used for my boat electronics and misc other things.

I had never noticed before that there is a difference between the settings displayed on the Overkill Solar App compared to the Xiaoxiang App ..... I typically just use the Xiaoxiang App for taking a quick look at it.
The Discharge Overcurrent setting DOES show as a negative number in the Overkill app .... but not the Xiaoxiang App.


Here is a screen shot with the Xiaoxiang App.
Xiaoxiang.jpg

and Here is a screenshot using the Overkill App
OverkillSolar.jpg
 

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