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Original topic:

S21 Ultra take forever to charge

(Topic created on: 03-02-2021 09:43 PM)
bkthebk
Apprentice
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Galaxy S21 Series

Admittedly I am using a generic charger, but should it take 5 hours to charge fully from 50%?  This is incredibly longer than my last phone. 

12 REPLIES 12
Benji123
First Poster
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Galaxy S21 Series
it has max 25 Watt charger where as the note 10 plus 5g is 45watt charger so it will take longer to charge using a regular charger plus the ultra has a 5000mah battery so will take longer to charge a bugger battery.

hope it helps 🙏🙂
jimsouthstand
Pioneer
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Galaxy S21 Series
Are you using 25W Fast Charger which came with the S20? Otherw
jimsouthstand
Pioneer
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Galaxy S21 Series
if not its available in the Samsung Store if thats where you shop or there will be after market ones available on Amazon etc
ironass
Hotshot
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Galaxy S21 Series

Using the official 25W charger and USB-C-to-C cable from Samsung, my Galaxy S21 Ultra's 5000 mAh battery can charge to more than 50% in 30 min's. 

See... https://www.samsung.com/uk/mobile-accessories/wall-charger-super-fast-charging-25w-ep-ta800xbeggb/



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My device... Galaxy S21 Ultra 5G 16/512GB (G998B D/S) CSC=BTU
bkthebk
Apprentice
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Galaxy S21 Series

Thank you all for the feedback.  I definitely wouldn't expect it to charge as fast compared to the official 25W....but my charging time seems like a pretty outrageous difference.  With the battery issues reported I was wondering if mine is defective or not working well. 

0 Likes
GalaxyAsh
Voyager
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Galaxy S21 Series
my S21 Ultra charges as fast as my S20 Ultra with the same 25 watt charger, around 50% in 30 minutes ( as above ) I haven't noticed you mention if it is just a standard 5 watt charger but if you're using a higher wattage than 5 watt but not a "Super Fast Charger" go to Settings >> Battery & Device Care >> Battery >> more Battery Settings and toggle on Fast Charging. that should speed it up.
bkthebk
Apprentice
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Galaxy S21 Series

Thank you!  I will give that a try. 

0 Likes
sundai
Pioneer
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Galaxy S21 Series
I noticed that when I charged my s21 U. for the first time it was taking ages - 10 minutes for 5% - and was off. When I powdered on, it asked straight away if I wanted to enable fast charge, immediately fixing the issue. Full charge in just over an hour
0 Likes
ironass
Hotshot
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Galaxy S21 Series

I am guessing that you had not enabled Fast Charge when setting your phone up, in...

Settings > Battery and device care > Battery >More Battery settings > Charging... Fast charging/Super fast charging/Fast wireless charging



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My device... Galaxy S21 Ultra 5G 16/512GB (G998B D/S) CSC=BTU