[Zenfone 6] Notification Led turns off after sometime when connected to non fast charger.

[yashtr]

Hi,
I would like to know if this is a bug or a fault in my unit. I am on the latest update as of 31 Dec 2019. If I charge my device with a non fast charger say 9 or 15V the notification light turns on for 10 seconds and then turns off although the phone still charges. I have no issues with 18 V fast charger the notification led is on for the entire duration. Can someone confirm if this is a bug?

[yashtr]

It's really great you found out the the issue with those details. I really hope this gets reported and resolved.