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Original topic:

Samsung s21 charging slowly and getting excessively hot

(Topic created on: 06-07-2021 03:35 AM)
User25
First Poster
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Galaxy S21 Series

I got the Samsung s21 ultra yesterday and am having issuses already. The battery on the phone is set to superfast charging and I'm using a genuine charger and plug however its taking over 8 hours to fully charge and gets excessively hot when it is charging. I had seen other users saying you need a 25w charger and plug but I can't see a wattage on the plug and no chargers I'm looking at online specify a wattage. I found one but it's USB c at both ends . Is it not possible to get USB chargers anymore ??

4 REPLIES 4
BandOfBrothers
Superuser II
Superuser II
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Galaxy S21 Series

I find when I set my N20 Ultra 5G to super fast charging this does then warm the phone up more because of the fact it's charging way faster than normal charging.

Where did you purchase the charger from ?

Is it definitely 100% a genuine Samsung charger  ?

 


Current Phone > Samsung Z Fold³ 5G.

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JAMES4578
Superuser I
Superuser I
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Galaxy S21 Series

@User25 Looks like there  may be an issue with that charger, it an official Samsung charger?   Actually the wattage is displayed in several places online.  You do need a 25 watt charger, the USB C cable will have been provided with the device.    https://www.samsung.com/uk/mobile-accessories/wall-charger-super-fast-charging-25w-ep-ta800xbeggb/ 

  https://www.uk-mobilestore.co.uk/products/official-samsung-galaxy-s21-ultra-25w-usb-c-uk-fast-main-c... 

 https://www.amazon.co.uk/Samsung-Original-USB-C-Charger-Black/dp/B08R1JKKM5/ref=sr_1_4?dchild=1&keyw... 

My Device- S21 Ultra 5G ( SM-998B/DS ) CSC= BTU , 12GB/256GB
One Ui 4.0,Android 12 Beta 3
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GoanGeek
Troubleshooter
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Galaxy S21 Series
My old samsung charges charge my S21 ultra roughly in the 2 hour range if from say 10% .
I believe they might be 18 Watt ones.
I always charge overnight though and most of the time have around 40% battery left.

8 hours for a charge is definitely wrong somewhere.
Joeeye
Hotshot
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Galaxy S21 Series
If you can take a picture of the chargers information side showing it's model number, we can determine its Wattage rating.
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