Fast charger heating up the phone - Galaxy S6 Q&A, Help & Troubleshooting

the phone gets heated up to about 40-45 degrees Celsius if continuously kept on charging to charge 50-60% of the battery but once the phone reaches 70% the heat decreases and above 800% its cool is it normal for the phone/charger or i should get charger replaced?The charging pin also gets heated up ! Is it due to fast charger or i have a defective charging port?

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[Q] Question about battery heat during wireless charging

Hi, I am using a metrans wireless charger mwt03 for my nexus 5.
During charging the battery temperature is beween 40-44,5 degrees celcius.
Is this too hot for the phone?
Sometimes it will go to 45 degrees where the phone will still charge but state (overheat) as a status (instead of health: good).
Should I look for another wireless charger?

Wireless charge temperature

Hi all, I buy a fast wireless charge from anker on amazon and I wold this know if my device is working right or is damage. I monitor the temperature and I see that on standard cable (no fast) the temperature stay on 26 °C and with wireless charge (no fast) stay in 34 °C and stay this temperature with 100% charge too. Is normal or when arrive to 100% the temperature must go down?
It should go down and cool completely when charging is over (at least thats how my s7 acts with choetech wireless charger, also using slow charging). Just give it some time after it reaches 100% (10 minutes or so).
Mine keeps being warm after a night on the wireless charger, so i guess charging doesn't stop automatically?
(just have my s7 for two days so that's something i have to look at)
I don't like it being warm as long as it is on the charger.
(samsung charger, that refuses to go to green color when it should finish, it stays blue)
Ok thanks I'm go to change my wireless charge with other model
I have the anker fast charge model (first photo)
And I would to buy the yootech model (second photo)
All see on amazon
edit:
added photo
I have the fast charge Choetech Wireless charger, and the temperature stay high at 100%, between 32 °C et 35 °C.
To solve this , kinda extreme, i bought a WeMo Switch operated by Tasker. One profile that turn off the Wireless charge 15 minutes after the battery come to 100% and another profile that start the charger between 0% and 95%.
bjtmosfet said:
Hi all, I buy a fast wireless charge from anker on amazon and I wold this know if my device is working right or is damage. I monitor the temperature and I see that on standard cable (no fast) the temperature stay on 26 °C and with wireless charge (no fast) stay in 34 °C and stay this temperature with 100% charge too. Is normal or when arrive to 100% the temperature must go down?
Click to expand...
Click to collapse
ndompierre said:
I have the fast charge Choetech Wireless charger, and the temperature stay high at 100%, between 32 °C et 35 °C.
To solve this , kinda extreme, i bought a WeMo Switch operated by Tasker. One profile that turn off the Wireless charge 15 minutes after the battery come to 100% and another profile that start the charger between 0% and 95%.
Click to expand...
Click to collapse
ok so probably this are normal temperature. i'm try to chage my model with the other one that on amazon say me that ar not get warm. get i try
Choetech quick wireless charger, using slow charge. This morning, phone as cold as it wasnt on the charger at all. (Cooltool at the top of the screen measures phone temperature)
I use the Anker quick charge wireless charger to charge my phone over night on quick charge setting. Phone is cold to the touch in the morning when I wake up and at 100%. I do have a case on but no heat detected from charger or case when I wake up.
Jonathan-H said:
I use the Anker quick charge wireless charger to charge my phone over night on quick charge setting. Phone is cold to the touch in the morning when I wake up and at 100%. I do have a case on but no heat detected from charger or case when I wake up.
Click to expand...
Click to collapse
is the same anker as in my photo?
lakicamm said:
Choetech quick wireless charger, using slow charge. This morning, phone as cold as it wasnt on the charger at all. (Cooltool at the top of the screen measures phone temperature)
Click to expand...
Click to collapse
good, i hope new model don't give me the same problem
First charme with new wireless charge and I can confirm that the temperature stay the same little warm so I think is a normal temperature. This model is better then other is little more big and I can place more easily to start receive energy

No fast charging while using the N20U

Hello,
I am getting the super fast charging only while the screen is locked. If I am using the device while it's charging, charging is not so fast.
It says super fast charging but it doesn't charge so fast.
Is it just my device or others facing the same issue?
enjoylife1788 said:
Hello,
I am getting the super fast charging only while the screen is locked. If I am using the device while it's charging, charging is not so fast.
It says super fast charging but it doesn't charge so fast.
Is it just my device or others facing the same issue?
Click to expand...
Click to collapse
This is turned off by default. View attachment 5105611
Sent from my BlackBerry Bold 9900
I have turned it on. But what I am talking is that it works when the phone is not in use.
Same charger while phone is in use the charging is slow.
Same charger while the phone is sleep mode, the charging is super fast.
This is normal to avoid over heating of battery while in use.
You can't have the screen on for fast charging, you can listen to music with bt though while fast charging.
Having the screen on disrupts the charge curve (it defaults to slow charging) and it's best practice not to do this.
•Start charge at 30-40% then let charge to 60-80%
To get a 20% charge in that range only takes about 10 minutes! Li's love to be used like this; short charge/use cycles do not degrade them like NiCads.
There is a known slight memory effect with Li's so periodically cycle them through a wider charge range.
•Never charge cell below freezing, best if cell temp is 80 F to 95 F. At 80 F or below plating can occur which would permanently degrade the cell.
Charging above 70% degrades the battery faster, above 90% the charging slows and the higher cell voltage degrades it even faster.
•Avoid charging to 100% except if you need to or to periodically do a full charge cycle.
Heat and high cell voltage are the killers of Li cells. By avoiding charging beyond 80% and high temperatures you can increase the battery lifespan by hundreds even thousands of full charge cycles.
A 20% is not a full charge cycle; 6%-100% is.
Five 20% charges would be roughly the equivalent of a full charge cycle in power but far less is cell degradation.
•Avoid discharging below 20%, 30% is better.
After 20% there's much less usable energy; the phone uses a constant 5 volts. The phone's voltage converters trade off milliamps for voltage and use more milliamps for converting lower cell voltage.
Volts x Amps = watts.
The phone's voltage and wattage requirements are constants. So at lower cell voltage the phone draws more milliamps to supply these; the battery provides less watt hours than at higher battery voltage levels.
So take a 10 minute break every 2 hours or so and let it fast charge during the break.

Question Phone is heated up with wireless 9W charger without me touching the phone

hello guys, i recived a wireless 9w charger with my Samsung s22 ultra, and when I'm charging the phone with it, the phone heated up to around 45 celsius ...
I'm not touching the phone during the charging, also the phone heated when I'm using the 45W charger...
what I'm missing?
please guys need help
My s21u also heated up when charging wirelessly on a 8w wireless charger....I got a 15w one from a friend to test and the heating wasn't as bad....There are some days that my s22u also heats up when charging, but mostly it's cool....probably stuff/apps doing things in the back ground. I disabled the "screensaver" when charging and that helped a bit
Wireless charging by it's nature, causes a lot of heat. Charging in general does. Ambient temp will have a small effect on it's heat too.
maor23 said:
hello guys, i recived a wireless 9w charger with my Samsung s22 ultra, and when I'm charging the phone with it, the phone heated up to around 45 celsius ...
I'm not touching the phone during the charging, also the phone heated when I'm using the 45W charger...
what I'm missing?
Click to expand...
Click to collapse
I never use wireless charging due to the higher temps it seems to produce as a side effect. I've also heard (but not verified) that poor alignment of the phone on the wireless charger makes it charge less optimally and hence produce additional heat.
I bought a wireless charging stand with a built-in fan on Amazon a few years ago. I have it connected to the 9w charger that came with my Note9. The device does not get much warmer than normal, but of course, it does not charge as fast as it would with a USB cable.
Does it get as hot, or hot at all, when charging while the phone is off completely?
That's way too hot. For comparison, my 2022 15 Watt Wireless Duo gets up to around 103f.

Samsung S10 only charges to 4.225 mV while turned on and upto 4.3 mV when turned off

i have a samsung galaxy s10 and somehow i notice that the charging speed is blazing fast from 89% to 100%. Then i monitor the peak voltage using AIDA64 and Accubattery. When my phone reached 100% it shows the voltage of 4.225 mV, i read that S10 supposed to charge upto 4.285 mV. After that i tried calibrating the battery by discharging it until my phone turned off by itself then charge to 100% while turned off and it shows 4.3 mV after i turned in on. What is happening to my phone and should i be worried about it?
In fact fast charging ramps down at about 80% then again around 90% in order to protect the battery. Excessive cold temperatures will cause fast charging not to engage.
You can't accurately measure Li charge level voltage or fast charge with the display on. If the display is on the power controller senses the excess power usage and ramps down fast charging. It will charge slowly at best.
To measure the voltage with Accubattery have the window open then turn off the display. When you turn it on you have about a second to see the voltage as it samples around every second or so.
It will immediately drop down then.
Depending on temperature, current draw and battery condition it may limit the top charge.
Fast charging to 100% stresses the battery needlessly as does constantly discharging below 20%. Li's prefer frequent midrange power cycling ie 40-72%. High cell voltage and temperature are their enemies. High discharge rates also can accelerate their degradation by driving up temperature.
Ideal minimum start charge temperature for fast charging is about 82F, minimum is 72F. If below about 55F fast charging will not engage for that charge cycle.
Cold charging Li's can cause Li plating which will permanently degrade the cell, a oid doing this!
NEVER attempt to charge an Li that is near freezing temperature
So thats the reason why my phone once dropped its percentage from 30% to 5% in an instant after having it in front of my car air conditioner. But is there a reason why my phone charged very fast from 89% to 100%?
It shouldn't drop that fast! Or charge faster near full charge. This is atypical performance.
You using the Samsung 25w brick and cable?
Erratic fast charging is a sign of a battery failure. Any swelling is a battery failure, replace asap.
Im using samsung 15w fast charging and btw i have replaced the battery around 5 months ago and i notice the fast charging speed only recently. Samsung didnt reset mt battery cycle when replacing the battery tho
Fixt1772 said:
Im using samsung 15w fast charging and btw i have replaced the battery around 5 months ago and i notice the fast charging speed only recently. Samsung didnt reset mt battery cycle when replacing the battery tho
Click to expand...
Click to collapse
You need the 25 watt Samsung brick and cable.
15 watts will slow fast charging down if it works at all. If fast charging it should add about 2%@minute for 4100mAh battery in the 20-70% charging range.

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