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Question Wireless charging heat

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Mrxyzl

Senior Member
May 1, 2015
774
424
Hello everyone, i just bought a new wireless charger form Baseus and charge my s21+ with fast wireless charging on, and while charging i notice that the phone battery get as hot as 40 degree Celsius. SO i try turn off the fast wireless charging option and let the phone cool off to ambient temp (around 32-34 degree) and charge again, but it still reaches 40 degree.

I want to ask is this normal, and please share your temperature while using wireless charging and the brand of charger you use.
 
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Kenora_I

Senior Member
Jun 12, 2021
1,173
3
232
Ireland
Redmi 7A
Samsung Galaxy A21s
Hello everyone, i just bought a new wireless charger form Baseus and charge my s21+ with fast wireless charging on, and while charging i notice that the phone battery get as hot as 40 degree Celsius. SO i try turn off the fast wireless charging option and let the phone cool off to ambient temp (around 32-34 degree) and charge again, but it still reaches 40 degree.

I want to ask is this normal, and please share your temperature while using wireless charging and the brand of charger you use.
Well, phones getting hot while charging is usually normal.
Sometimes it happens when the phone charges for too long and at a higher voltage and amps.
 
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Mrxyzl

Senior Member
May 1, 2015
774
424
Yeah, fast charging is faster, and wireless charging sometimes in some phones is hitter than cable. Depends on the manufacturer of the phone and the model and the wireless charger itself.
Thank you for answer, but in this case i want to ask for the specific heat for phone s21+ and the third party 15w charger from baseus.
 

MViper79

Member
Oct 26, 2012
8
2
Slovenia
Hi guys, hope it's ok I ask a similar question here.

I do to have S21 5G (exynos) and samsung 15w wireless charger with 25w brick.

The issues I'm having is with charging speeds. If I use fast charging, the current is around 2700mA. But as soon as the temperature hits around 35-36 degrees charging current starts oscillating between 300-600-900 mA. It takes around 5 hours to fully charge the phone. It's faster if I turn off fast charging. It takes around 3 hours.

Room temp is around 26 c.

I don't remember having similar issues with S20.
 

Kenora_I

Senior Member
Jun 12, 2021
1,173
3
232
Ireland
Redmi 7A
Samsung Galaxy A21s
Hi guys, hope it's ok I ask a similar question here.

I do to have S21 5G (exynos) and samsung 15w wireless charger with 25w brick.

The issues I'm having is with charging speeds. If I use fast charging, the current is around 2700mA. But as soon as the temperature hits around 35-36 degrees charging current starts oscillating between 300-600-900 mA. It takes around 5 hours to fully charge the phone. It's faster if I turn off fast charging. It takes around 3 hours.

Room temp is around 26 c.

I don't remember having similar issues with S20.
Fast charging increases the wattage of the charge so your phone overheats.
If it overheats too much the phone limites the charge rate to protect the components.
It seems like a flaw in the fast charging or smth like that
keep fast charging off if it overheats your phone, and maybe try keeping it in a cooler environment
 
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MViper79

Member
Oct 26, 2012
8
2
Slovenia
Fast charging increases the wattage of the charge so your phone overheats.
If it overheats too much the phone limites the charge rate to protect the components.
It seems like a flaw in the fast charging or smth like that
keep fast charging off if it overheats your phone, and maybe try keeping it in a cooler environment
Thanks.

So you think it's more or less software issue? Faulty stand charger?

Because.. S20 was charging fine..
 

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  • 1
    Hi guys, hope it's ok I ask a similar question here.

    I do to have S21 5G (exynos) and samsung 15w wireless charger with 25w brick.

    The issues I'm having is with charging speeds. If I use fast charging, the current is around 2700mA. But as soon as the temperature hits around 35-36 degrees charging current starts oscillating between 300-600-900 mA. It takes around 5 hours to fully charge the phone. It's faster if I turn off fast charging. It takes around 3 hours.

    Room temp is around 26 c.

    I don't remember having similar issues with S20.
    Fast charging increases the wattage of the charge so your phone overheats.
    If it overheats too much the phone limites the charge rate to protect the components.
    It seems like a flaw in the fast charging or smth like that
    keep fast charging off if it overheats your phone, and maybe try keeping it in a cooler environment
    1
    Thanks.

    So you think it's more or less software issue? Faulty stand charger?

    Because.. S20 was charging fine..
    Was the s20 charging fine before the a11 update or after
    1
    1
    People have been complaining about that in android 11...
    freakin buggy update, I expected more from both Samsung and Google
    1
    Maybe, dont take my word for it
    I havent been well versed in android 11 news soooo yeah
    :3
  • 1
    Hello everyone, i just bought a new wireless charger form Baseus and charge my s21+ with fast wireless charging on, and while charging i notice that the phone battery get as hot as 40 degree Celsius. SO i try turn off the fast wireless charging option and let the phone cool off to ambient temp (around 32-34 degree) and charge again, but it still reaches 40 degree.

    I want to ask is this normal, and please share your temperature while using wireless charging and the brand of charger you use.
    1
    Hello everyone, i just bought a new wireless charger form Baseus and charge my s21+ with fast wireless charging on, and while charging i notice that the phone battery get as hot as 40 degree Celsius. SO i try turn off the fast wireless charging option and let the phone cool off to ambient temp (around 32-34 degree) and charge again, but it still reaches 40 degree.

    I want to ask is this normal, and please share your temperature while using wireless charging and the brand of charger you use.
    Well, phones getting hot while charging is usually normal.
    Sometimes it happens when the phone charges for too long and at a higher voltage and amps.
    1
    Hi guys, hope it's ok I ask a similar question here.

    I do to have S21 5G (exynos) and samsung 15w wireless charger with 25w brick.

    The issues I'm having is with charging speeds. If I use fast charging, the current is around 2700mA. But as soon as the temperature hits around 35-36 degrees charging current starts oscillating between 300-600-900 mA. It takes around 5 hours to fully charge the phone. It's faster if I turn off fast charging. It takes around 3 hours.

    Room temp is around 26 c.

    I don't remember having similar issues with S20.
    Fast charging increases the wattage of the charge so your phone overheats.
    If it overheats too much the phone limites the charge rate to protect the components.
    It seems like a flaw in the fast charging or smth like that
    keep fast charging off if it overheats your phone, and maybe try keeping it in a cooler environment
    1
    Thanks.

    So you think it's more or less software issue? Faulty stand charger?

    Because.. S20 was charging fine..
    Was the s20 charging fine before the a11 update or after
    1