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Cogging and unstable battery voltage measurement

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Mastersam
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Last seen: 4 months 3 weeks ago
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Joined: 2021-05-10 19:58
Posts: 3
Cogging and unstable battery voltage measurement
Hello,
 
I bought a Flipsky FSESC 6.6 60A more than a year ago, but I began to use it on an eBike this week (with a 1500W wheelhub motor).
 
The motor has a lot of cogging even with the auto calibration, and first of all I noticed that the battery voltage measurement is not stable at all, even when stopped the voltage can oscillate very quickly between 47 and 51V (12s 20Ah 12C Li-po battery).
 
You can see the problem here : https://youtu.be/trGr6Sw6v0E
How can I solve this problem, what could be the cause?
 
Thanks a lot for your help
Mastersam
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Last seen: 4 months 3 weeks ago
VESC Free
Joined: 2021-05-10 19:58
Posts: 3

It's OK now, updating firmware from 5.2 to 5.3 solved the issue.