Battery issue

[samy2022]

Hello, I think that the battery icon isn't showing the right percentage. I've been using the phone for the past hour, but it displays 90% since I unplugged it. I tried rebooting the phone, and it's now 89%. Also, the Samsung Members battery health check confirms that the battery health of my phone is bad. How can I "recalibrate" the battery percentage?

[RedDogRabbit]

Let the battery drain down to about 5%.

Open the Dialer and type:

*#0228#

Click on Quick Start and let the phone Reboot.

See if the battery percentage has changed. 

You may need to repeat this a few times.

Charge the battery to 100%

Open the Dialer and type:

*#9900#

Click on Battery Stats Reset. 

Reboot. 

[samy2022]

Okay, thank you. I'll try that tomorrow. Should I also let the battery go to 0% after the last? The last time I let my phone run out of battery was on February 23.

[RedDogRabbit]

You can let the battery drain down to zero, but it is up to you. 

[samy2022]

For some reason, typing*#0228# isn't working... but my SoT didn't get affected so it shouldn't be a big problem

[RedDogRabbit · Accepted solution]

Well, you're not going to like this idea, probably.. 

But if you Factory Reset your device, it will clear the data in /data/system/batterystats

BUT, if the Phone Diagnostics are saying that the battery's health is bad, I think that I might look at getting the battery replaced, or a new phone? 

[samy2022]

True😅 I don't really like to factory reset my device... But I'll do it if I really have to. I'll probably get my battery replaced. Thank you for your advices!

[noenid]

For people trying this, you need to type in these codes manually. Or at least the last #. Calling it won't work.

[Helenna]

Hi, just to confirm are you still facing the issue after performing the steps as suggested by the RedDogRabbit ?