Notifications
Clear all

[Solved] DELL Q30423 6CELL RFJMW showing wrong cell voltages than actual

Habib Ullah
(@sajid)
Reputable Member Customer

This battery shows dynamic behavior after resetting its cell voltage values, which are correct as per pack voltages, but after a few minutes, values automatically change and shows bad balance eventhough cells are well balanced

WhatsApp Image 2023 10 25 at 16.56.08 d5824140
WhatsApp Image 2023 10 25 at 16.56.08 f761fb01
WhatsApp Image 2023 10 25 at 16.56.07 5a9cde4b

.

image
ReplyQuote
Topic starter Posted : 25/10/2023 11:58 am
DjiBattWorkshop
(@djibattworkshop)
Member Moderator

Probably wrong channel was catched. 

Try to read cells voltages by Test Battery Demo software. 

ReplyQuote
Posted : 25/10/2023 12:03 pm
Habib Ullah
(@sajid)
Reputable Member Customer

@djibattworkshop

image
image

 

ReplyQuote
Topic starter Posted : 25/10/2023 12:17 pm
DjiBattWorkshop
(@djibattworkshop)
Member Moderator

Try all 13 channels to find one with correct cells voltages. 

 

ReplyQuote
Posted : 25/10/2023 12:27 pm
Habib Ullah
(@sajid)
Reputable Member Customer

@djibattworkshop The result is the same on different channels Now I am trying to check the BMS working using the discharge tab. If the pack voltage is disturbed after complete discharge, then there is a problem in the program or BMS because the cells are well-tested. If there is another issue, kindly mention it here 

image
ReplyQuote
Topic starter Posted : 25/10/2023 12:47 pm
DjiBattWorkshop
(@djibattworkshop)
Member Moderator

 bms is faulty and should be replaced or repaired 

 

ReplyQuote
Posted : 25/10/2023 12:57 pm
Share: