Question Wireless charging 9w - Samsung Galaxy S21 Ultra

Hi, I have a question.. I bought Samsung wireless charger 9w and I charged the phone completely switched off and the charging time was approximately 4 hours.. Is it normal? Maybe the wireless charging not working in fast mode if the phone is powered of?? Thanks..

9w is really low power to charge a 5000mah battery sooner than that

of course its normal with a 9w charger ... thats damn slow

Another question, is it bad for the battery on the long run?
I usually charge overnight during sleep so I don't mind slow charging just curious about battery life. Thanks

Qi standard allows one to use even lower charging power than that 9W for safer overnight charging. Check the alignment of the charging coils for optimal result.

9W is not fast wireless charging, it is normal; 15W is fast wireless charging.

Related

Charging question for the EE's

Throughout a day I charge my Tilt from a variety of sources: the stock charger, my old Apache's charger, my PC, car charger, my Moto headset charger ...
Looking at them all the only difference I see listed is the amperage.
The Stock charger is 1Amp, so is the Apache's
The Moto charger is 550mA
iGo Charger is 1.5Amp
no idea what the PC or the car charger output is.
I am assuming that the differences in amperage would simply effect how quickly the battery charges to full. Is that correct?
Maybe also that a fully depleted battery would need a full 1Amp charger to begin charging ... the 550mAmp might not cut it for a fully depleted battery.
Would charging with a lower amp charger (550mA) or a higher amp charger (1.5A) have any long term negative impact on the charging or overall battery life?
Just curious ...
batteryuniversity.com
telll us wat u learn
The amp rating is the normal maximum current that can flow from the particular charger. They all are spec'd to put out a regulated 5V but the current comes into play if you are using the phone at the same time as charging. If the phone draws more than the charger can supply then it's going to take longer to charge or may not fully charge. Normal charger is 1A and with that the phone can be used most likely at the same time. With a 550ma charger I'd turn the phone off (standby) to ensure a full charge in a reasonable time.
None should affect battery life, just time to reach full. The charge lite on the phone is your guide, when it's amber, it's charging, green it's full, simple as that.
The only thing that will harm the lithium is to take the phone to dead for long periods, that's the hardest thing on a lithium.
Also see http://wiki.xda-developers.com/inde...y car or USB charger! It just doesn't charge!

how to charge 3600mah battery to full? I can't, not even externally for 12hrs

anyone knows? may be the stock charger won't work & will cut off after charging to ~1490mah? I left mine charging for 12hrs & it appears to be only charging during the 1st couple of hours... then the heat in battery is lost = no charging anymore
thx in advance
i do no the exact issue but think that u need a charger of higer current rating to charge that battery.

Charging with the fast charger mainly overnight

Hey guys. So I Was wondering whether it damages the battery to charge with the fast charger. If so, should I charge with a standard charger instead?
I was also wondering if it is ok to charge the phone overnight with the fast charger.
Thanks!
Galaxy Note 5 includes auto-discharged feature, even with fast charger. I dont know clearly what your Galaxy Note 5 model is, mine is 9208. When I try to charge with cable charger or fast charger, my phone automatically discharges with all charger when fully charged and LED notification turns to green.
I have not tested with wireless charger so I have no idea.

qi wireless charge

i have a question
i am planning to buy a wireless charge and want to know something
if i buy the wireless charge where do i must look?
input or the output for more faster charging ?
example:
Wireless charging standard: Qi standard
Power: 10W
Wireless distance: 5mm
Input: 5V 2000mA
Output: 5V 1000mA
Frequency: 100-200 kHz
Power transform efficiency:> 75%
or dou have a link for a fastercharger already?
thank you
I have a wireless charger. It doesn't charge fast at all. You need a powerful charger to power the wireless dock. That's the 2000mA you see above.
I use a turbo charger to power my wireless dock. When connected to my phone directly, Ampere reports that it will reach up to 2200mA.
My phone now is at 50% charge and in the wireless dock charging wirelessly at 570mA.
Wireless charging is trickle charging only.
[NG]Owner
I am using several cheap QI-pads from eBay (China)
Use with standard usb-chargers (different types).
Disadvantage of QI-pads is that it's critical how the phone is placed on the pad.
Extra difficult with a Nexus 6. The back isn't flat.
With plastic material of a sleeping mat l've made a 'charging bed' that fits​ my Nexus 6.
I have a wide variety of Qi chargers scattered around the house, car, and office.
They all do an acceptable job of keeping my phone topped up throughout the day. None of them are even close to as fast as the QC 2.0 plug in chargers but that's not a problem for me. Because I can just set my phone down to charge anytime it is almost always fully charged.
Qi pad on my desk at work and night-stand at home. Phone is on it about 6-8 hours at night, and another 2-4 hours during the day. If my phone is below 50%, it will take a few hours to get back to 100%. But it is a great way to start the day at 100% charge without stress on teh USB port.

Quick charging with original factory charger

Does all the time quick charging damage the battery? I think better to charge with a normal Xiaomi adapter.
No it does not, it only quick charges to a certain % and then lower the charge.
I'm using the Apple charger which is more reliable & stable than any Android charger.

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