Charging rate - Xiaomi Redmi Note 7 Questions & Answers

I got a ugreen type c 18w qc 4.0/pd adapter and a type c usb meter.
I only got
9v 1.3a = 11w min
9v 1.4a = 12w ave
9v 1.5a =14w max
I can't get an 18w of charge rate. Tried other type of setup like usimg qc 30 usb a to c adapter still cant get 18w charging.

Related

1A charger vs 2A charger vs micro usb vs usb 3.0

Hy guys,
so, i have a normal 1A charger with a standard usb to micro usb cable. It takes around 3 hours for a full charge.
I was wondering if i can reduce the charging time if i buy a usb 3.0 cable and use it with my 1A charger. Will i see an improvement in the charging speed? Do i need a 2A charger, and if yes, will it work faster with the normal cable i already have?
Thanks!
ps. my phone is on 4.4.2 with root
The USB 3.0 cable only improves data transfer from the computer to the phone, not charge speed. And yes, a 2A charger will charge faster but only if your current cable supports the 2A. If you have a generic, cheap cable it is most likely it will still only draw 1A of charge.
Thank you. So i probably need to get both the cable and the charger then.

Fast charging power banks?

Hey there, i'm, trying to find any power banks compatible with samsung's adaptive fast charging to use with my S9+. Are there any available? If so, are they worth it?
Thanks
I bought this directly from Samsung for $16 and it does fast charge on my S9+ but it is now out of stock: https://www.samsung.com/us/mobile/m...-10ah-with-usb-c-cable-silver-eb-p1100csegus/
bads3ctor said:
I bought this directly from Samsung for $16 and it does fast charge on my S9+ but it is now out of stock: https://www.samsung.com/us/mobile/m...-10ah-with-usb-c-cable-silver-eb-p1100csegus/
Click to expand...
Click to collapse
Shame, that's exactly what I needed. Can't find it anywhere sadly.
Any power bank that offer either Quick Charge 2.0/3.0 or USB Power Delivery through USB Type C should work. The S9/S9+ will draw 1.67A @ 9V over QC and 3A @ 5V over USB-PD via Type C and therefore fast charge at 15W (which is its limit).
These should work, though I've not tried these myself.
Anker PowerCore Speed 20000mAh offers USB-PD but not QC, though the standard USB port offers 2A @ 5V, so while not fast charging it charges at 10W from the standard port (15W from the USB-PD port for the S9+).
Charmast 10400mAh Powr Bank offers both QC3 and USB-PD.
I have an Anker power bank (non-PD), and an Aukey wall charger so can recommend those brands in general terms from my personal experience.
Xiaomi 20,000 power bank supports fast charging as well on S9 plus.
This is available now: https://www.samsung.com/us/mobile/m...-10ah-with-usb-c-cable-silver-eb-p1100csegus/
aouni_tahech said:
Xiaomi 20,000 power bank supports fast charging as well on S9 plus.
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Click to collapse
I have the same powerbank and it works like a charm.
One note: you can charge the phone using quickcharge from the powerbank but you can also use the phone's charger to quickcharge the powerbank
Incarniac said:
Any power bank that offer either Quick Charge 2.0/3.0 or USB Power Delivery through USB Type C should work. The S9/S9+ will draw 1.67A @ 9V over QC and 3A @ 5V over USB-PD via Type C and therefore fast charge at 15W (which is its limit).
These should work, though I've not tried these myself.
Anker PowerCore Speed 20000mAh offers USB-PD but not QC, though the standard USB port offers 2A @ 5V, so while not fast charging it charges at 10W from the standard port (15W from the USB-PD port for the S9+).
Charmast 10400mAh Powr Bank offers both QC3 and USB-PD.
I have an Anker power bank (non-PD), and an Aukey wall charger so can recommend those brands in general terms from my personal experience.
Click to expand...
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This
Can't get Fast Charge to work with Power Banks
I've bought 2 different QC power banks:
AIDEAZ Power Bank 20000mAh Portable Charger
https://www.amazon.ca/dp/B07GJHNRK9/ref=cm_sw_em_r_mt_dp_U_8697Cb90CYK1E
iWALK Wireless Portable Charger 10000mah Power Bank
https://www.amazon.ca/dp/B07FMVRD6K/ref=cm_sw_em_r_mt_dp_U_E897CbKW2P4PD
I also own
Anker Powercore Speed 10000 QC, Qualcomm Quick Charge 3.0 Portable Charger
https://www.amazon.ca/dp/B01JIYWUBA/ref=cm_sw_em_r_mt_dp_U_Q997Cb1HQ367J
NONE of them fast charge my S9+ even though when I use the wall charger it fast charges. I even have a USB power meter to confirm that these power banks are only inputting 5V 1A.
SO FRUSTRATING!
Al3xxxinho said:
I have the same powerbank and it works like a charm.
One note: you can charge the phone using quickcharge from the powerbank but you can also use the phone's charger to quickcharge the powerbank
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Click to collapse
And you can simultaneously charge your phone from the powerbank AND charge the powerbank from the phone's charger
pirellip said:
I've bought 2 different QC power banks:
AIDEAZ Power Bank 20000mAh Portable Charger
https://www.amazon.ca/dp/B07GJHNRK9/ref=cm_sw_em_r_mt_dp_U_8697Cb90CYK1E
iWALK Wireless Portable Charger 10000mah Power Bank
https://www.amazon.ca/dp/B07FMVRD6K/ref=cm_sw_em_r_mt_dp_U_E897CbKW2P4PD
I also own
Anker Powercore Speed 10000 QC, Qualcomm Quick Charge 3.0 Portable Charger
https://www.amazon.ca/dp/B01JIYWUBA/ref=cm_sw_em_r_mt_dp_U_Q997Cb1HQ367J
NONE of them fast charge my S9+ even though when I use the wall charger it fast charges. I even have a USB power meter to confirm that these power banks are only inputting 5V 1A.
SO FRUSTRATING!
Click to expand...
Click to collapse
Hey that is very weird especially since you say that your dev iui ce fast charges when it is plugged into a wall adapter. I have 2 powerbanks, one Mi Powerbank 2i 10000 mAh and the other is a Samsung Fast Wireless Charger 10000 mAh and both are capable of charging my S9+ at 15W

Fast charging support?

I use the stock 5V 1A charger and charging time is about 3 hours. Can i use a P10 lite charger that is 9V 2A? Will it damage the battery or charging hardware?
it could damage the phone in the long run
9V 2A charger won't damage the phone because it will never charge it with 9V as the phone don't support it. The charger will charge the phone with 5V 2A and this one is totally safe
So if i use a 5V 2A charger (my tablet charger), there will be an increase in charging speed?

Charging Oneplus with QC 4.0 or any other standard apart WARP

If I charge Oneplus 8 pro with lets say Car Charger with supported standards PD 3.0/QC 4.0/ QC 3.0/ AFC , is there a downside? Or just slow charging speed?
And, is there a downside if I need to charge my phone at work for example to take notebook USB Type C charger and plug in... (again apart of slow charge)
Vecera said:
If I charge Oneplus 8 pro with lets say Car Charger with supported standards PD 3.0/QC 4.0/ QC 3.0/ AFC , is there a downside? Or just slow charging speed?
And, is there a downside if I need to charge my phone at work for example to take notebook USB Type C charger and plug in... (again apart of slow charge)
Click to expand...
Click to collapse
The rate of charge just be slower, otherwise no problems, no.
I just got the 8 pro yesterday, IN2025. From what I've read and i just tested your charging speed will be better w/ PD as the phone does not support QC anything and just treats as it regular charging.
I tested the charging at ~70%.
USB PD, 4.2V/1.8A - 2A
QC 3.0 4.2V/1..2A
Warp Charging, 4.2V/4.8A
Warp with regular cable, 4.2V/1.2A
Regular charging 4.2V/1.2A
Hope that helps
okay so my previous phone was a PD 3.0, I have a bunch of charger that are 3.0 which support up to 65W. What would it do with the OnePlus 8 Pro. will it be limited to 35W or will it go higher?
Always limited by the phone max specs.
so in that case I should still get the 30W from a PD 3.0 charger to the OnePlus 8 Pro?
Cause I don't want to spend $50 for a Warp Charge Car adapter specially if my PD 3.0 charger can provide the same amount of wattage
mbze430 said:
so in that case I should still get the 30W from a PD 3.0 charger to the OnePlus 8 Pro?
Cause I don't want to spend $50 for a Warp Charge Car adapter specially if my PD 3.0 charger can provide the same amount of wattage
Click to expand...
Click to collapse
No, you will not get 30W from your PD charger, it will max out at 15W.
OnePlus only supports PD at 5V, likely because Dash charge only uses 5V. PD caps out at 3A for 5V, so 15W. PD achieves higher wattages by increasing the voltage rather than increasing the amperage like Dash Charge (hence why PD cables are generally thinner than Dash charge ones).
Thorin78 said:
I just got the 8 pro yesterday, IN2025. From what I've read and i just tested your charging speed will be better w/ PD as the phone does not support QC anything and just treats as it regular charging.
I tested the charging at ~70%.
USB PD, 4.2V/1.8A - 2A
QC 3.0 4.2V/1..2A
Warp Charging, 4.2V/4.8A
Warp with regular cable, 4.2V/1.2A
Regular charging 4.2V/1.2A
Hope that helps
Click to expand...
Click to collapse
So in your case all chargers give less than required charging voltage?! AFAIK, only dash/vooc charges at battaries max voltage. others supply 5v. check your data

About 45W charging

It was said that in order to charge at maximum power, the Note10+ needs a PD3.0 charger, with PPS support, rated at 45W, allowing to go up in current intensity to 4.5A, with a voltage of 10V, provided that you use a USB cable capable of transmitting a current of 5A.
Actually, and comparing all different kinds of chargers, I realised that the original 45W Samsung charger will charge the Note10+ at a maximum current of 30-33W, and it is exactly the same whether you use a 5A cable or a 3A cable, the current being [email protected] for both cables.
Therefore, I think that this whole 45W/5A thing is not accurate: you can use any 3A or 5A cable with the 45W charger, and you will get a good 30-33W charging power, with 20% faster charging speed than the original Samsung 25W charger.
To confirm: Has anyone tested the 45W charger with both cables?
I mean by this, using the Samsung 45W charger and a Note 10+ with 50% battery or less, first plug in with the original cable (5A) that came with the charger, write down the displayed time to charge the battery completely, then disconnect and reconnect with a standard 3A cable and note the time displayed. Compare the two times: I think they will be the same.
And if this is verified, it just means that a 5A cable is not needed for the 45W charger. A 3A cable is enough, especially as a replacement if you have lost the original cable.

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