Jbd Bluetooth BMS, parameters overwhelming, help or a guide online?

rudivb

100 mW
Joined
Sep 5, 2023
Messages
37
Location
France
Hi,

So I had battery problems and decided to get a new BMS. I'm happy that everything went well and have the JBD Bluetooth BMS up and running.

The parameters are a bit overwhelming to me, so some help would be appreciated or if there is some sort of guide online?

Anyway to get to the main points/questions:

1. I set "nominal capacity" to 37.7AH, as I have a 37.7AH52V battery is this correct?

2. Are there any other important parameters I need to set? (See pics for all the parameters)

3. Is it possible to set the max charge to approximately 90% for example?

4. On the BMS I have 2 wires coming from NTC, they look like temp sensors, am I suppose to attach these in a specific location on the battery?

Oh and the battery is running a BBSHD with the custom firmware so that's I believe 32amps max.


Pictures:

First picture battery specs from the supplier.

All other pictures from the app parameters and cell groups, looks nice and balanced. :)

Last picture temps sensors? Where should they be placed?

IMG_20231210_192403.jpg


Screenshot_2023-12-10-19-21-25-72_3df8a9d4984557553da8791feb0ab07e.jpgScreenshot_2023-12-10-19-21-35-37_3df8a9d4984557553da8791feb0ab07e.jpgScreenshot_2023-12-10-19-21-44-26_3df8a9d4984557553da8791feb0ab07e.jpgScreenshot_2023-12-10-19-21-53-28_3df8a9d4984557553da8791feb0ab07e.jpgScreenshot_2023-12-10-19-22-00-54_3df8a9d4984557553da8791feb0ab07e.jpgScreenshot_2023-12-10-19-22-07-45_3df8a9d4984557553da8791feb0ab07e.jpgScreenshot_2023-12-10-19-22-15-30_3df8a9d4984557553da8791feb0ab07e.jpgIMG_20231210_194159.jpg
 
Last edited:
So I figured out setting the nominal voltage number to 45ah, seems to be better, now it shows 81% at 55.8v instead of 100%.
 
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