Battery analysis of ROG Phone 3

PranKillPranKill Level 1
edited February 5 in ROG Phone 3
  1. Model Name: ROG Phone 3
  2. Firmware Version: 17.0823.2012.122
  3. Rooted or not: No

Hi ROG Phone 3 users, I am seeing a lot of posts here which say that slow charging in ROG Phone 3 is not working or that scheduled charging is not working etc.

I have been using this phone for about 3 weeks now, and I have collected some data while charging (using an app called Battery Log: https://play.google.com/store/apps/details?id=kr.hwangti.batterylog) with these features toggled. Below I am attaching a consolidated graph:

Observations:

  1. When the slow charging is turned off, the phone charges way faster than when it is turned on.
  2. When the charging limit is set to 80%, the phone stops charging at 80±1%
  3. When scheduled charging is turned on, the phone stops charging at around 80% and then starts again before the wake time (seems like both scheduled charging and charging limit use same internal mechanisms)
  4. The charging pattern after 80% is same, whether slow charging is on or off.
  5. Temperature wasn't that big of an issue in all three cases, it dropped fairly quickly once i stopped using the phone, it was highest in fast charging mode.


Some bug-fixes I did:

  1. The scheduled charging functionality wasn't working initially, as the time kept changing randomly. I cleared the cache and data of mobile manager and power master apps and restarted the phone to solve that issue.

Some other problems:

  1. The phone still shows "hyper-charging" icon and animation, even if the slow charging function is enabled. That should be looked into. This leads the user to believe that slow charging is not working as expected.
  2. Since the latest update, the charging has been a bit slower. The estimate now crosses 2 hr 10 mins mark at 10% when previously it reached a max of 1 hr 50 mins.

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