18w fast charger vs 30w fast charger? - Redmi Note 8 Pro Questions & Answers

If I use 30w fast charger instead on the regular 18w that comes worth the phone will my battery be damaged?

Aliugradar05 said:
If I use 30w fast charger instead on the regular 18w that comes worth the phone will my battery be damaged?
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I don't know if you'll damage the phone but i know that the faster you charge it the faster is discharges

Wat charge you use ? Give me link ...and what time you get on full charge ?

No, the phone will just draw what is capable of. You can get a 100W PD charger and if the phone supports PD, it will charge at the maximum that i can (which will be way lower than 100W) If is no PD compatible, probably will fall down to other standards that both the phone and the charger are capable of, like QC3 or if they don't, to the good ol' ""5V 2A""

There's no problem if you use higher wattage type C chargers. You're just overspending on something your phone can't fully utilize. Your phone would still just ask what it's programmed for charging and the charger just provides power to satisfy, given that it could.

Related

LG G4 charging

So the G4 comes supplied with a 1.8A output charger, and I am wondering whether it is okay to use another charger I have, which has a 2.1A output? As in will it damage the battery over time?
I have heard the G4 supports quick charging so I'm guessing in that case it would be okay.
Thanks in advance.
It's fine. The phone will charge at whatever current it deems safe, even if you had a 100A supply available.
RedOCtobyr said:
It's fine. The phone will charge at whatever current it deems safe, even if you had a 100A supply available.
Click to expand...
Click to collapse
Would it charge faster?
Maybe a little.
I get about 1600mA with the stock charger. And about 1900mA with my Quick Charge 2.0 charger, which can provide the equivalent of >2.1A. I don't have any good-quality normal 2.1A chargers available to try.
So the largest benefit you could see would be about 20%, if the phone charged as quickly as it does from a QC 2.0 charger. I doubt it would charge that quickly, personally.
http://forum.xda-developers.com/showpost.php?p=62308705&postcount=104

Fast Charge

Hi guys, the Zenfone 3 deluxe supports qualcom quick charge 3.0 however it seems to be locked to the oem charger. Any other licenced qc 3.0 charger does not quick charge the phone. How hard would it be to get around this? Mainly for qc 3.0 powerbanks.
Huffy1 said:
Hi guys, the Zenfone 3 deluxe supports qualcom quick charge 3.0 however it seems to be locked to the oem charger. Any other licenced qc 3.0 charger does not quick charge the phone. How hard would it be to get around this? Mainly for qc 3.0 powerbanks.
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Click to collapse
This is not true. I am using this one - https://www.amazon.de/gp/product/B01EH11AS8/ref=oh_aui_detailpage_o04_s00?ie=UTF8&psc=1
and the quick charge 3.0 works fine. I am still using the original type-c cable that came with the phone though.
Note: Make sure that you have plugged in the USB end of the charger correctly, push it all the way in. If it's only pushed in partially, then you may not be getting the full power for Quick Charge. You can verify this by using a tool like AIDA64 from the playstore and checking the "Charge Rate" under battery.
This is where I was told it's not supported.
wap.ithome.com/html/262150.htm
Does it say Fast charging on the lock screen?
Huffy1 said:
This is where I was told it's not supported.
wap.ithome.com/html/262150.htm
Does it say Fast charging on the lock screen?
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Click to collapse
Update: Sorry guys, I realized that the OEM charger is indeed much faster at charging. Read posts below.
postimg.org/image/6wis1rux1/ - using licenced qc3.0 charger
postimg.org/image/ndr13s0pv/ - using oem charger.
Further test screen off
15min charge with licenced qc3.0 gives 13%
15min charge with oem charger gives 27%
Same test with screen on (playing video)
15mins with either charger yields about 15%, no noticible difference. Seems like the oem charger throttles when screen is on.
All tests are run when the battery is below 20%.
Same oem cable used for all tests.
Using the oem charger to fully charge my phone does it nearly twice as fast as the qc3.0 charger.
Don't know how your able to achieve the same speed regardless of charger
Hi guys, I've been experiencing the same problem with original charger, that's very big and it's seems that didn't have quick charge. I've a samsung charger and with samsung charger it wroks fine. I'll try to well plug thw original , but, it's thinner samssung's one.
Huffy1 said:
postimg.org/image/6wis1rux1/ - using licenced qc3.0 charger
postimg.org/image/ndr13s0pv/ - using oem charger.
Further test screen off
15min charge with licenced qc3.0 gives 13%
15min charge with oem charger gives 27%
Same test with screen on (playing video)
15mins with either charger yields about 15%, no noticible difference. Seems like the oem charger throttles when screen is on.
All tests are run when the battery is below 20%.
Same oem cable used for all tests.
Using the oem charger to fully charge my phone does it nearly twice as fast as the qc3.0 charger.
Don't know how your able to achieve the same speed regardless of charger
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Click to collapse
Interesting ... I stand corrected now regarding the "Fast Charging" on the lock screen.
I never used the original charger because I bought mine directly from Taiwan which has an US plug which I cannot use here in Germany directly without an extension.
I tried the OEM charger now with an adapter and yes you are right, the Charge Rate with the OEM charger is 2 times faster than with other chargrers.
OEM charger - 2900ma charge rate
Other charger - 1300ma charge rate
---------- Post added at 11:29 AM ---------- Previous post was at 11:02 AM ----------
Actually now I'm confused. When I plugged in the OEM charger, it said "Fast Charging" for a short while and then it says "Charging". The Charge rate also came down from 3000ma to 1300ma and down to 800ma when the battery is at 90%.
I will do some proper tests with the different chargers and post back.
Confirmed: OEM charger is much faster than other QC 3.0 chargers
When the phone reaches 70-80%, the charging rate will slow down and just trickle charge. This is normal as it can be dangerous to keep charging at Fast speeds when the battery is close to full capacity. So if your phone has 80% and you put it on charge, it will not Fast charge regardless of the charger you use.
Huffy1 said:
When the phone reaches 70-80%, the charging rate will slow down and just trickle charge. This is normal as it can be dangerous to keep charging at Fast speeds when the battery is close to full capacity. So if your phone has 80% and you put it on charge, it will not Fast charge regardless of the charger you use.
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Thanks for the information
I can also confirm fast charging doesn't work with my QC 2.0 charger. Interesting thing to note is it outputs 5V - 2A and 9V -2A. My guess is this charger from Asus that fast charges the Zenfone 2 would work on our phones because it has the same outputs if you read the description. It's worth a shot and you could always return it to Amazon if it doesn't work.
http://store.asus.com/us/item/20150...nFone+2+&+T100CHI+18W+Power+Adapter+and+Cable
Also sold at Amazon
https://www.amazon.com/ASUS-Charger-Zenfone2-T100CHI-Retail-packaging/dp/B00XR0FBYK
It would be nice to remove the red light when the phone is charging. Maybe it's something that can only be removed after rooting?
pacattack81 said:
I can also confirm fast charging doesn't work with my QC 2.0 charger. Interesting thing to note is it outputs 5V - 2A and 9V -2A. My guess is this charger from Asus that fast charges the Zenfone 2 would work on our phones because it has the same outputs if you read the description. It's worth a shot and you could always return it to Amazon if it doesn't work.
http://store.asus.com/us/item/20150...nFone+2+&+T100CHI+18W+Power+Adapter+and+Cable
Also sold at Amazon
https://www.amazon.com/ASUS-Charger-Zenfone2-T100CHI-Retail-packaging/dp/B00XR0FBYK
It would be nice to remove the red light when the phone is charging. Maybe it's something that can only be removed after rooting?
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Click to collapse
Unfortunately, even though the charger referenced above has the same outputs it doesn't fast charge. Seems you can only fast charge with the included charger. At least we can use our own charging cable. If anyone gets another charger to fast charge the device let us know. It doesn't appear Asus sells the included charger on it's webpage yet.
Not allowing the standard quickcharge charger to work forces people to once again purchase / replace current QC chargers.
One tick to the CONs side of the evaluation.
ewingr said:
Not allowing the standard quickcharge charger to work forces people to once again purchase / replace current QC chargers.
One tick to the CONs side of the evaluation.
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Click to collapse
At this moment, I don't really think it's a CON side...
The quality of all those QC2.x/3.x charger are not even today (may get better in future, however I really doubt those cheap, knock-off charger from China). Some are good, some are outright bad. QC is quite sensitive with the voltage/current delivered by the charger (it's by design of QC, I believe) and not optimum voltage/current will shorten the battery life at best, create danger at worst scenario.
LiPo battery is really not designed to be charged in high speed. The associated temperature issues needs to be check very carefully and charge current needs to be controlled strictly to avoid dangerous thermal runaway. It cannot only be done by phone itself and need co-work from adaptor (switching voltage, for instance.) Thus an adaptor which have good communication with phone is a safety requirement as far as QC is concerned.
Same with me. I bought a wall charger aukey PA-16 and a car charger Aukey CC-T8. Using the ampere APP, The original zenfone charger gets 2800 mAh. And the aukey chargers up to 1300 mAh.
K6 charger also does not enable Quick Charge function on 570KL
Input type: 100-240V 50-60Hz 0.5A - Quick charge 3.0 output: 3.6V-6.5V-3A/6.5V-9V-2A/9V-12V-1.5A - Power: 18W
I am wondering if someone achieved any solution to remove OEM charger lock to use fast charge with third party Qualcomm Certified Chargers/Power Banks?
Sorry to resume this thread but i lost my oem charger and id like to get one that works with the zenfone 3 deluxe and quickcharge. Can anyone post a link where i can buy it or maybe the model number of the charger? The EU version would be nice.
Thanks
Any solution to the original question?
pacattack81 said:
I can also confirm fast charging doesn't work with my QC 2.0 charger. Interesting thing to note is it outputs 5V - 2A and 9V -2A. My guess is this charger from Asus that fast charges the Zenfone 2 would work on our phones because it has the same outputs if you read the description. It's worth a shot and you could always return it to Amazon if it doesn't work.
http://store.asus.com/us/item/20150...nFone+2+&+T100CHI+18W+Power+Adapter+and+Cable
Also sold at Amazon
https://www.amazon.com/ASUS-Charger-Zenfone2-T100CHI-Retail-packaging/dp/B00XR0FBYK
It would be nice to remove the red light when the phone is charging. Maybe it's something that can only be removed after rooting?
Click to expand...
Click to collapse
ASUS locked the fast charge function to the OEM QC 2.0 charger that comes with the phone (it will NOT work even with other ASUS QC 2.0 - or 3.0 - chargers, only with the specific type/"model" that came with the phone). Therefore we don't get QC3.0 - as advertised - at all. The QC3.0 compatibility with 3rd party chargers, powerbanks and car chargers was disabled with one of the updates, I think it was the Android 7.0 Update (that replaced Android 6.0) that removed QC3 compatibility. So... any ideas how to re-enable the QC 3.0 functionality?
Quick charge was disabled for other chargers from day one. I'm still on marshmallow (Android 6.0) and only the charger that came with the phone works with quick charge.

does it use qc 3.0 or a LENOVO proprietary standard? read here....

from gsmarena:
We initially thought that the Rapid charging tech used by Lenovo must be Quick Charge 3.0 since the P2 uses a Qualcomm chipset. However, our third-party QC3.0 charger didn't charge the P2 particularly fast, so the jury is still out on whether Lenovo is using a proprietary charging technology.
so... my car charger and my power bank, BOTH qc 3.0 are useless with this phone??
Our charger is a basic 12V 2A charger, giving a total of 24W Power. I don't see anything special in the charger. It's probably not the usual QC we had heard of. I have seen in some reviews though about this charging technology being different and very interesting.
A problem would be: what charger for the car???
i have the phone and i can confirm it only uses the QC feature with the included CHARGER
no way to use any qc 2/3.0 charger....mmhhh bad decision lenovo!
realista87 said:
i have the phone and i can confirm it only uses the QC feature with the included CHARGER
no way to use any qc 2/3.0 charger....mmhhh bad decision lenovo!
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Click to collapse
I don't see your point. This charger outperforms any other chargers in the market even turbo and dash chargers.
Why do you ppl always end up blaming others.
because i am against the proprietary charging algorithms..... dash charge is great? NOPE.... it forces you to use a special cable, a special charger, no 3rd part suppliers... high price of chargers, is it a good move for the customer?
same thing for this lenovo charging solution, ok the fastest one, but if i lose che official charger i am stucked with the NORMAL 5v 2a solution....
this is not a great thing imho, and all power banks i have qith 7/9/12v qc features are USELESS with the lenovo p2......
You're thinking only voltage my friend, check if your power bank can supply 2A at 12V. Probably no. Mostly all power banks bottlenecks at 1.5A.
So, there isn't a way to use another charger for fast charging?
Siva Mk said:
You're thinking only voltage my friend, check if your power bank can supply 2A at 12V. Probably no. Mostly all power banks bottlenecks at 1.5A.
Click to expand...
Click to collapse
my xiaomi power bank 2 20000mah does have qc3.0 and it's tested to arrive higher than 2A at 12v ... but even if other chargers are "only" capable to reach 12v at 1,5A ... it is still a missed quick charge because p2 uses proprietary charge coding
ok this is not THEp roblem, but just a con. like for dash charge people repeat at eveyone that oneplus is the fastes... but hey without an available dach charge power bank... that phone is s "joke"
I have another QC3.0 wall charger, when i plug to P2 it's out put at 2A only not fast charge.
But when i plug original charger from P2 to another phone fsst charge status is become.
???
How many times will you open new topic for the same problem ?
https://forum.xda-developers.com/lenovo-p2/accessories/replacement-charger-party-charger-t3662211

how to get more speed charging?

hi guys,
i have two chargers,
1. output 9.0V 1.67A or 5.0V 2.0A
2. output 5.2V 2.4A
and a usb-c cable, in the cable box i find that this cable is supporting for fast charging and support to 2.4A but when i tried it with the two chargers, and test it using 'ampere' app i got max to 1010mA with both chargers adapter ! even with this value i feel it charging my mobile quickly, and in the bottom of the lock screen i see 'charging rapidly' but i want more and why the phone is not charged depending on the values in the chargers (1.67A - 2.0A - 2.4A) and cable (2.4A)
The P2XL charger is 9V, 2A or 5V, 3A. Your amperage values are too low, which may explain why you're not charging as quickly as you should be. The solution: get a charger that equals or exceeds the stock charger ratings.
You realize slow charging is better for the long-term life of the battery, right?
sublimaze said:
You realize slow charging is better for the long-term life of the battery, right?
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Click to collapse
Considering we often get new phones every 2-3 years, you won't see much of a degradation from rapid/fast charging.
Rather, you'll see a degradation from charging from <15% to 100% (which people do often). That will be a more significant reason someones battery will lose much off its lifespan.
I wish Android would have a built in limiter. I'm sure in the next few years, both iOS and Android will.
Strephon Alkhalikoi said:
The P2XL charger is 9V, 2A or 5V, 3A. Your amperage values are too low, which may explain why you're not charging as quickly as you should be. The solution: get a charger that equals or exceeds the stock charger ratings.
Click to expand...
Click to collapse
hi friend,
i bought an original charger for my pixel 2 xl from ebay https://www.ebay.com/itm/113109823570 and after testing it with ampere app i got the same value as my old charger, i got max 1010 mA, and i don't feel that there is a fast charging, it needs to the same time to charge my mobile as my old charger !
please help
Strephon Alkhalikoi said:
The P2XL charger is 9V, 2A or 5V, 3A. Your amperage values are too low, which may explain why you're not charging as quickly as you should be. The solution: get a charger that equals or exceeds the stock charger ratings.
Click to expand...
Click to collapse
After seeing this I checked accubattery and it also says mine normally charges between 700 - 1010 mah also. I didn't even think about fast charging, I don't have the original charger but I have other "fast chargers" that don't seem to be doing their job either.
Chouiyekh said:
hi friend,
i bought an original charger for my pixel 2 xl from ebay https://www.ebay.com/itm/113109823570 and after testing it with ampere app i got the same value as my old charger, i got max 1010 mA, and i don't feel that there is a fast charging, it needs to the same time to charge my mobile as my old charger !
please help
Click to expand...
Click to collapse
tbkrazeey said:
After seeing this I checked accubattery and it also says mine normally charges between 700 - 1010 mah also. I didn't even think about fast charging, I don't have the original charger but I have other "fast chargers" that don't seem to be doing their job either.
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Click to collapse
There's nothing I can help you guys with. All I can tell you is what ratings your charger should have, based upon the information printed on the pair of chargers I received with my device when I purchased it directly from Google. If you have a genuine Google charger and the P2XL is still not charging fast, contact Google.
stuff said:
Considering we often get new phones every 2-3 years, you won't see much of a degradation from rapid/fast charging.
Rather, you'll see a degradation from charging from <15% to 100% (which people do often). That will be a more significant reason someones battery will lose much off its lifespan.
I wish Android would have a built in limiter. I'm sure in the next few years, both iOS and Android will.
Click to expand...
Click to collapse
Unfortunately, i hope someone could help
Chouiyekh said:
hi friend,
i bought an original charger for my pixel 2 xl from ebay https://www.ebay.com/itm/113109823570 and after testing it with ampere app i got the same value as my old charger, i got max 1010 mA, and i don't feel that there is a fast charging, it needs to the same time to charge my mobile as my old charger !
please help
Click to expand...
Click to collapse
I thought that charging capped out at roughly 1000 mA when the screen is on to protect the battery from overheating/putting too much strain on it. Which could lead to degradation of the battery. That would explain why you only see 1010 mA on Ampere - because the screen is on. I don't think Ampere measures while the screen is off, so it is difficult to say what value it would be giving you.
That is my experience even using the stock charger that came with the phone.
pemz82 said:
I thought that charging capped out at roughly 1000 mA when the screen is on to protect the battery from overheating/putting too much strain on it. Which could lead to degradation of the battery. That would explain why you only see 1010 mA on Ampere - because the screen is on. I don't think Ampere measures while the screen is off, so it is difficult to say what value it would be giving you.
That is my experience even using the stock charger that came with the phone.
Click to expand...
Click to collapse
maybe your opinion is right. my next experiment is from 0% to 100% with the old charger and with the stock charger, then i will see if there is a difference
tbkrazeey said:
After seeing this I checked accubattery and it also says mine normally charges between 700 - 1010 mah also. I didn't even think about fast charging, I don't have the original charger but I have other "fast chargers" that don't seem to be doing their job either.
Click to expand...
Click to collapse
There is one other thing that you must also have. The Pixel does NOT support Qualcomm Fast Charging. It uses Power Delivery, not Quickcharge Technology. So if you have a charger that is labeled QuickCharge or a Moto Turbo Charger you will NOT get fast charging from these units. It has to be a Power Delivery charger with a USB C port and the cable must be USB-IF certified. If you don't have all of that then you don't get a fast charge.
nlinecomputers said:
There is one other thing that you must also have. The Pixel does NOT support Qualcomm Fast Charging. It uses Power Delivery, not Quickcharge Technology. So if you have a charger that is labeled QuickCharge or a Moto Turbo Charger you will NOT get fast charging from these units. It has to be a Power Delivery charger with a USB C port and the cable must be USB-IF certified. If you don't have all of that then you don't get a fast charge.
Click to expand...
Click to collapse
That makes sense then, it seems like everything gets more complicated every year.
I just purchased one of these from Amazon. Note that it supports Power Delivery 3.0. This unit quick charges my phone. The Moto Charger I have for my old Moto G5+ which is a Qualcomm charger will charge the phone but only at slow speeds.
https://www.amazon.com/gp/product/B07H6BQNGF/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1
nlinecomputers said:
There is one other thing that you must also have. The Pixel does NOT support Qualcomm Fast Charging. It uses Power Delivery, not Quickcharge Technology. So if you have a charger that is labeled QuickCharge or a Moto Turbo Charger you will NOT get fast charging from these units. It has to be a Power Delivery charger with a USB C port and the cable must be USB-IF certified. If you don't have all of that then you don't get a fast charge.
Click to expand...
Click to collapse
i bought this : http://www.ebay.com/itm/113109823570
what do you think ?
If it is really the OEM parts that will work. The pictures look like mine, but ya know eBay....

Where to buy an extra OEM charger

I am looking to purchase an extra 18W charger, North American variant.
Is it available for purchase anywhere?
The only 18W charger I could find on Asus' store mentions being a notebook charger.
But it appears to be identical.
Having used OnePlus phones, I do miss how easy it was to purchase accessories on their website...
Thanks
Any QC3/QC4 charger will be ok.
_jis_ said:
Any QC3/QC4 charger will be ok.
Click to expand...
Click to collapse
Whats. The difference in quick charge 3 and 4 as far as speeds? The 5z had a 18w qc3 charger and the Zenfone 6 has a 18w qc4 charger..would the qc3 charge slower ?
Sent from my ASUS_I01WDX using Tapatalk
sedp23 said:
Whats. The difference in quick charge 3 and 4 as far as speeds? The 5z had a 18w qc3 charger and the Zenfone 6 has a 18w qc4 charger..would the qc3 charge slower ?
Click to expand...
Click to collapse
I guess the original charger will be faster. Can you try and compare it?
I compared the two.
Note, that, presumably, because the OEM charger does not go up the maximum 20V of QC4 (only 9V) it is not actually a certified QC4 charger, despite using the standard.
Also, the power rating for QC4 isn't actually higher than QC3, it merely has finer voltage control, allowing for better efficiency.
Sidenote, funnily enough, my QC3 charger is two thirds the size of the ASUS downgraded QC4 charger...
I used ampere to measure current at 50% charge.
That said, I used a QC3 charger from my previous Mi Max 2, it definitely got picked up by the Zenfone 6, showing the two plusses in the battery icon. It reached a max current of 2.5A
The OEM charger reached a stable 3A.
A difference is certainly there, but my guess is it won't actually be THAT significant in the real world. Personally I always use two chargers, the OEM for fast topping up, when needed. And another really "crappy" (0.8A smartwatch charger) for overnight charging so that the majority of the charging I do stresses the battery as little as possible. No matter what Qualcomm likes to tell you, fast charging definitely shortens the lifespan of a battery, so while convenient, it's good to do it as little as possible.
If you REALLY want the fastest possible results, try and find a QC4 charger. Only a few actually exist to buy right now.
Otherwise you can get a QC3 charger, there are TONS of those, and you can actually get the pretty cheap too. You'll only lose 0.5A anyway.
You could probably also use a USB PD 3.0 charger, as QC4 is able to negotiate voltages with it as if it were a fully supported QC charger.
Edit. Tried charging with both from 55% to 71% (It just happened to be where I was at with one charger, then used a battery drainer to do the exact same charge).
The QC3 charger was one minute slower at 16 minutes, while the OEM did it in 15 minutes.

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