24-04-2021 06:51 PM - last edited 25-04-2021 03:19 AM
My S21 Ultra is taking 1.5 hours to charge from 5-100% with the Samsung 25W super fast charger and the cable supplied with the S21 Ultra.
And I have fast charging and super fast charging enabled on my device.
All the user reviews & battery charging tests online show that the S21 Ultra takes roughly between 1 hour 9 minutes to 1 hour 15 minutes to do a full charge from 0-100% with the Samsung 25W Super fast charger.
Any idea what is going wrong here? Is it an issue with the phone, cable, or charger?
Solved! Go to Solution.
03-05-2021 04:40 PM in
So I've had a weird resolution to the issue.
I stay in India where it's summer now & the temperatures are really hot (around 32-34°C inside the house) . So, I switched on the air conditioning, set it to 24°C, and started charging my phone. To my surprise, the phone charged from 5-100% in 1 hour 5 minutes!
I tried it a few other times & the results were the same. The moment I tried charging the phone in a room without air conditioning, it took 1 hour 30 minutes.
It's really strange that a room temperature difference of a few degrees results in an added 25 minutes of charging time!
I wonder if this is normal for all Samsung phones as I didn't face this issue with any other phone.
25-04-2021 04:22 AM in
I disabled the Fast charging option & only turned on Super fast charging.
It took 1 hour & 37 minutes to charge the phone fully from 5-100%. This is 10 minutes more than what it took with both fast & super fast charging options turned on.
I'm at my wits end now.
25-04-2021 08:48 AM - last edited 25-04-2021 08:52 AM
25-04-2021 08:54 AM in
The screen (including AOD) is completely off while charging. Also, I've ensured that I don't use the phone at all while it's charging.
I'm starting to wonder if the 1 hour 10 minutes charging time is only when the phone is in flight mode or switched off completely.
25-04-2021 09:00 AM in