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Do you think it would be safe to charge the evo with a 2.1 amp car charger? I found one on ebay that says its made for the iPad but I would love a faster charge on my epic.
In general, the slower you charge the battery, the longer it will last. The effect is pretty significant.
I don't know if that much current is safe.
http://www.batteryuniversity.com/parttwo-34.htm
Sent from my SPH-D700 using XDA App
It's more complicated than that. Just because the charger is able to provide 2.1A doesn't mean the phone will actually draw that much current.
The charge control circuitry is built into the phone. You are just providing a +5V rail as the charging power source via a standard USB connection. There is no charge control inherent in USB itself.
Sent from Samsung Vibrant
It will only pull as much as it needs. I use higher amp output chargers and it's not a problem. It will charge faster, regardless of what you use, if you turn the phone off.
jnadke said:
In general, the slower you charge the battery, the longer it will last.
Click to expand...
Click to collapse
Bingo.
Being an Aerospace Electrical Engineer I approve of this message.
jnadke said:
In general, the slower you charge the battery, the longer it will last. The effect is pretty significant.
I don't know if that much current is safe.
http://www.batteryuniversity.com/parttwo-34.htm
Sent from my SPH-D700 using XDA App
Click to expand...
Click to collapse
this is true, but the effect is not that significant, coming from using lithium packs in rc helicopers and cars, the battery will likely be obsolete before you kill it and the batteries aren't that expensive.
kerms said:
Do you think it would be safe to charge the evo with a 2.1 amp car charger? I found one on ebay that says its made for the iPad but I would love a faster charge on my epic.
Click to expand...
Click to collapse
do you have a link and is there a wall charger too? I run a remote desktop app and it destroys the battery, even with the 1 amp charger going the battery just gets lower and lower.
robl45 said:
do you have a link and is there a wall charger too? I run a remote desktop app and it destroys the battery, even with the 1 amp charger going the battery just gets lower and lower.
Click to expand...
Click to collapse
It could be due to the usb micro charging standards... Many chargers do not adhere to the standard, and this may cause some of the newer phones (droid X, galaxy S phones) not to charge at full power. Most older phones simply did not care, and would use all the amperage they could get their hands on.
Basically, if the D+ and D- pins of the USB cable are not shorted, then the device will draw minimal power from the +5v rail. It is probably drawing <500 mah, and could even be drawing as little as 100 mah from the charger.
Getting a proper 1A charger could fix this, but I'd like to test it out myself when I get the chance..
http://www.griffintechnology.com/products/powerduo-for-ipad
These work good. I use the ac one. Only thing is, like some have stated, even when charging when phone is on and using the phone, the battery will still go down. Maybe 2.2 will fix this or a patch.
I'm not going to debate fast vs slow charging. This isn't like debating what is the best charger for AA rechargeable nimh, fast or slow or charging method.
Earlier I was nokia N86 user. Charger of that phone is same like SGS2. I charged my SGS2 with that charger. And I got the feeling that it was faster than original SGS2 charger.
Sent from my GT-I9100 using Tapatalk
Give us some data on charging timers pls.
Details please....
Ok will give it in few days. I'll start calculating it.
Will u need any screen shots? If yes than how I mean is der any way to calculate time directly on phone?
Sent from my GT-I9100 using Tapatalk
i have a nokia n97 mini charger which i use to charge my SGS2. It is indeed faster. But i guess it is because the nokia charger is capable of 1.2 A against only 0.7 A for the Samsung charger. Keep in mind that the voltage is the important number when matching chargers.
Both chargers are 5 V. Having higher A number means the charger is capable of giving out more power (power = V x A), power is energy rate (how much energy per second delivered). That is why Nokia's charger is faster, because it can give enery at a faster rate
fileexit said:
i have a nokia n97 mini charger which i use to charge my SGS2. It is indeed faster. But i guess it is because the nokia charger is capable of 1.2 A against only 0.7 A for the Samsung charger. Keep in mind that the voltage is the important number when matching chargers.
Both chargers are 5 V. Having higher A number means the charger is capable of giving out more power (power = V x A), power is energy rate (how much energy per second delivered). That is why Nokia's charger is faster, because it can give enery at a faster rate
Click to expand...
Click to collapse
The question is: is this gonna waste the samsung's battery?
I'm no battery expert but wouldn't samsung have selected the amp level for a reason??
666fff said:
I'm no battery expert but wouldn't samsung have selected the amp level for a reason??
Click to expand...
Click to collapse
Yes, Price been issuing an (I think 1amp) old htc charger. Not sure I notice a difference in charge speed, though its possible it still helps when running flash, oced etc by helping power the phone more so the battery isn't picking up the slack and can maintain charging without load. And no more amps can't hurt,a load will pull what it needs (more volts WOULD be am issue) Its like a 1200 watt pc power supply to run grandmas pentium computer wouldn't hurt it, just be under utilized. Make sense?
Sent from my GT-I9100 using XDA App
Are you surprised it charges faster? I'm socked that my SGSII charger only throws out 700mA.
What are they playing at giving "travel charger" in the box?
The charge speed is directly related to the current output of the charger in use, as long as the phone is designed to accept a current higher than the lowly 700mA the standard one outputs.
With a 1A charger you should get (in theory) ~43% faster charging, assuming the phone and battery can draw that much current to charge.
Let's hope the phone supports this:
In Battery Charging Specification,[38] new powering modes are added to the USB specification. A host or hub Charging Downstream Port can supply a maximum of 1.5 A when communicating at low-bandwidth or full-bandwidth, a maximum of 900 mA when communicating at high-bandwidth, and as much current as the connector will safely handle when no communication is taking place; USB 2.0 standard-A connectors are rated at 1.5 A by default. A Dedicated Charging Port can supply a maximum of 1.8 A of current at 5.25 V. A portable device can draw up to 1.8 A from a Dedicated Charging Port. The Dedicated Charging Port shorts the D+ and D- pins with a resistance of at most 200 Ω. The short disables data transfer, but allows devices to detect the Dedicated Charging Port and allows very simple, high current chargers to be manufactured. The increased current (faster, 9 W charging) will occur once both the host/hub and devices support the new charging specification.
Click to expand...
Click to collapse
Would make charging insane.
I didnt understand whatever kani has quoted.
Plz somebody tell me is it safe to charge or not?
Sent from my GT-I9100 using Tapatalk
Havent done any test but my old blackberry charger, charges the phone faster. Anything is faster than the stock charger.
Sent from my GT-I9100 using XDA App
Hmm im interested in this thread, somebody with an electrical background should chime in on if its totally safe or not to use a charger with more current output.
I don't know if you european guys have different chargers than us, this is what mine reads.
input 100-240v- 50-60hz 0.15a
Output 5.0v 1.0A
unleashed12 said:
Hmm im interested in this thread, somebody with an electrical background should chime in on if its totally safe or not to use a charger with more current output.
I don't know if you european guys have different chargers than us, this is what mine reads.
input 100-240v- 50-60hz 0.15a
Output 5.0v 1.0A
Click to expand...
Click to collapse
Mine says
"Input 100-240v- 50-60hz 0.15A
Output 5.0v 0.7A"
So yes, guess we do have different chargers
So i guess then NA has the theoretical 50% higher charging rate @ 1.0 A that one other guy was mentioning earlier; i was wondering because i really feel that my charge time on this phone isn't slow at all. Was looking to possibly make it faster even
Me too i saw a quickly charge with n97 charger.
But, with the original one, you gain like 1/2 hours of autonomy.
Quick charger = less time to charge the buttery but less time on battery
Slow charger = more time to charge buttery but more time of autonomy
The best should be charging the phone in offline mode using the computer
Mine says
Input : 150-300vac
50 - 60Hz 0.15A
output :5.0V 0.7A
Sent from my GT-I9100 using Tapatalk
And On nokia charger
Input : AC100-240V/50-60HZ/160mA
output: DC 5.0V/1200mA
Sent from my GT-I9100 using Tapatalk
I think it should be fine, i used another charger on my old HD2 for most of the time i had it (a year and a half) after i lost the original and never had any issues.
So can someone give a list of what chargers would charge the phone faster than the one that came with it.
thanks
The phone apparently limits the charging current to 650mA no matter the charger. Not sure I'd want to be the one testing increasing the cap though
http://forum.xda-developers.com/showthread.php?t=1132649&highlight=Charging
I don't know what drug Apple put in their chargers, but i've always noticed my iPhone charging waaaay faster than my S2.
I even tried draining them both to 0%, and charging them with their original chargers. As soon as the iPhone was full of juice, the S2 was just about 50 or 60%
So i did some research about the safety of using the Apple charger, and it appeared to be all OK.
I'm going to end up buying a new battery anyways because i feel like mine has worn out, so i thought it was a good idea to plug the S2 in the fruitplug.
After i plugged the USB cable into the Apple charger, i immediately noticed the phone charging way faster. Waaay faster.
The phone does get a little warmer, but not too warm. I charged the phone from 8% to 100% in less than a hour!
I'm still experimenting the safety of this, by constantly keeping a look at the temperatures, and how hot the thing feels, and it appears to stay safe.
I recommend to remove your case and battery cover and keep an eye on your phone if you consider trying this, but for now i can say one thing:
If you have an iDevice in your house, charge your phone with the fruitplug
on the other side... what do you think about it? Would you try it?
domini99 said:
I don't know what drug Apple put in their chargers, but i've always noticed my iPhone charging waaaay faster than my S2.
I even tried draining them both to 0%, and charging them with their original chargers. As soon as the iPhone was full of juice, the S2 was just about 50 or 60%
So i did some research about the safety of using the Apple charger, and it appeared to be all OK.
I'm going to end up buying a new battery anyways because i feel like mine has worn out, so i thought it was a good idea to plug the S2 in the fruitplug.
After i plugged the USB cable into the Apple charger, i immediately noticed the phone charging way faster. Waaay faster.
The phone does get a little warmer, but not too warm. I charged the phone from 8% to 100% in less than a hour!
I'm still experimenting the safety of this, by constantly keeping a look at the temperatures, and how hot the thing feels, and it appears to stay safe.
I recommend to remove your case and battery cover and keep an eye on your phone if you consider trying this, but for now i can say one thing:
If you have an iDevice in your house, charge your phone with the fruitplug
on the other side... what do you think about it? Would you try it?
Click to expand...
Click to collapse
It is all abouy amp your charger uses.
S2 charger give 5amp out and iphone must be more which throws more juice to ur phones battery thus fast charging.
Sent from my GT-I9100 using xda premium
Not 5A actually, it gives output of 5V and 1A.At least my charger. @domini99, what is the output for your iPhone charger ?
Nightshadow931 said:
Not 5A actually, it gives output of 5V and 1A.At least my charger. @domini99, what is the output for your iPhone charger ?
Click to expand...
Click to collapse
According to the information on the charger, it outputs 1A. My samsung charger also outputs 1A, yet it charges faster with the iPhone charger.
I did some quick research and found that the iPhone charger would have a special sort of **** inside of it that charges the phone in a different way. Not sure if bull**** or actually true, but they did put some sort of magic or drug in that thing to make it hypercharge anything i charge in it
They couldn't have put anything inside, it all depends of voltage and amperage.
You can use charger with higher amperage than your device need though.
And, yea, you can use charger with more amps, but you cannot use charger with higher voltage than 5V.
iPad charger gives [email protected], but last time I tried it with a Samsung phone, it wouldn't charge.
Nightshadow931 said:
They couldn't have put anything inside, it all depends of voltage and amperage.
The higher the amperage, the faster your phone will charge.
You can use charger with higher amperage than your device need, your phone would charge just fine, only faster. But it would cause heating your device, thus reducing the life of your battery.
And, yea, you can use charger with more amps, but you cannot use charger with higher voltage than 5V.
Click to expand...
Click to collapse
Well I'm fine with my iPhone charger
darth_mickrig said:
iPad charger gives [email protected], but last time I tried it with a Samsung phone, it wouldn't charge.
Click to expand...
Click to collapse
Maybe the iPad charger has too much drugs or magic inside of it and your Galaxy doesn't have any Space for it?
tablet/smartphone 5V | 2A,Micro USB
I buy charger for tablet/smartphone [email protected] It charges 3x faster.
I check all the chargers i have with current widget, a nice little app tell how much mv your battery have left and how much your charger putting in. I plug in a 600mah charger and i get around 500-550mah input. With a 2a charger i get 641mah consistantly, so i guess that's thr limit of our device
So 650mah, and a 1650mah battery, that means 2 and a half hour for full cycle. And that also means something is happening to that apple juicer
pipyakas said:
So 650mah, and a 1650mah battery, that means 2 and a half hour for full cycle. And that also means something is happening to that apple juicer
Click to expand...
Click to collapse
This.
S2's hardware doesn't allow it to charge more than 650mAh from an external charger. So it doesn't matter if you're using 1Ah or 2Ah charger, it will be the same.
Now, that's for the international i9100, who knows if there's something different with other versions or if the phone has a faulty hardware. I've also noticed that my phone recharges much faster right after being quickly discharged. So it could also be that the metering is faulty and there was juice left in the battery.
Darius_bd said:
This.
S2's hardware doesn't allow it to charge more than 650mAh from an external charger. So it doesn't matter if you're using 1Ah or 2Ah charger, it will be the same.
Now, that's for the international i9100, who knows if there's something different with other versions or if the phone has a faulty hardware. I've also noticed that my phone recharges much faster right after being quickly discharged. So it could also be that the metering is faulty and there was juice left in the battery.
Click to expand...
Click to collapse
I got European s2, would that make any difference?
What I know is that the s2 never will charge over 650mA per hour. I use a 700mA charger and incoming at ~640mA on my s2.
Maybe a battery charger will do better than charging through phone?
pipyakas said:
I check all the chargers i have with current widget, a nice little app tell how much mv your battery have left and how much your charger putting in. I plug in a 600mah charger and i get around 500-550mah input. With a 2a charger i get 641mah consistantly, so i guess that's thr limit of our device
So 650mah, and a 1650mah battery, that means 2 and a half hour for full cycle. And that also means something is happening to that apple juicer
Click to expand...
Click to collapse
How did u make it work ? For me it shows 0mA always. I tried with v0.38 though, could you send me an apk for the latest version (0.40) from play store, cause it keeps telling me that the app is not compatible with my device.
Also, are u on jb or kk ?
Nightshadow931 said:
How did u make it work ? For me it shows 0mA always. I tried with v0.38 though, could you send me an apk for the latest version (0.40) from play store, cause it keeps telling me that the app is not compatible with my device.
Also, are u on jb or kk ?
Click to expand...
Click to collapse
I install it from gg play and it works, no trouble there. Im using cm10.1, and i have tp resize the widget to have full vision of it. Anw, just got a ipad mini charger, 1A, plug in and it show around 640mah. 2.5h for a full cycle, that means op's charger have some problem. Too good to br true
---------- Post added at 02:21 PM ---------- Previous post was at 02:18 PM ----------
GreekBlood said:
What I know is that the s2 never will charge over 650mA per hour. I use a 700mA charger and incoming at ~640mA on my s2.
Maybe a battery charger will do better than charging through phone?
Click to expand...
Click to collapse
A charging dock for the battery only, maybe. But be careful of those, they can make battery "fat" then eventually broke
---------- Post added at 02:22 PM ---------- Previous post was at 02:21 PM ----------
Darius_bd said:
Now, that's for the international i9100, who knows if there's something different with other versions or if the phone has a faulty hardware. I've also noticed that my phone recharges much faster right after being quickly discharged. So it could also be that the metering is faulty and there was juice left in the battery.
Click to expand...
Click to collapse
Im using M250S version, and it doesnt seem that there are any differences
pipyakas said:
A charging dock for the battery only, maybe. But be careful of those, they can make battery "fat" then eventually broke=
Click to expand...
Click to collapse
Then you overcharge them.
GreekBlood said:
Then you overcharge them.
Click to expand...
Click to collapse
I dont have a proper charging dock though, i can only guess when it's finish, and that's dangerous. Im using an ipad mini charger now and it's fine, just can do the 1hour-to-full like op's
pipyakas said:
I dont have a proper charging dock though, i can only guess when it's finish, and that's dangerous. Im using an ipad mini charger now and it's fine, just can do the 1hour-to-full like op's
Click to expand...
Click to collapse
And that's awesome
Hi guys,
N910C with Exynos here.
I have some questions for you guys.
1) Is it beneficial to use a generic (but good) 1/2 A (amp) 5 V (volts) charger over the Samsung charger?
2) What happens if I leave "fast charge" option on? Will it charge faster? Will it try to?
3) When using the provided Samsung charger, is it better for the battery to leave the "fast charge" option off?
4) Is the fast charge (or any fast charged charge) as good and efficient(?) as a 'slow' charge? Will they last the same?
5) What if I turn off the phone, is it going to "fast charge" by default when using the the provided charger?
Thanks in advance guys!
Sent from my SM-N910C
fedecape said:
1) Is it beneficial to use a generic (but good) 1/2 A (amp) 5 V (volts) charger over the Samsung charger
Click to expand...
Click to collapse
No. It won't do any harm, it will just take more time to charge your Note.
2) What happens if I leave "fast charge" option on? Will it charge faster? Will it try to?
Click to expand...
Click to collapse
It will charge slowly. Reason: Fast charging uses a slightly higher voltage for transferring the charge to the charging circuit. That's to keep the amperage low, so the tiny wires won't overheat. It's just according to the formula W = V x A: You can increase the wattage by increasing the amperage (heating up the wires) or by increasing the voltage (keeping the wires cool).
That's the reason why many countries don't use 110 V but 230 V - to decrease the burden on the electricity lines as you can then safely transfer more watts through the same lines. It's a kind of safety measure.
3) When using the provided Samsung charger, is it better for the battery to leave the "fast charge" option off?
Click to expand...
Click to collapse
No. Fast charging does not reach the safety limits defined for our battery.
4) Is the fast charge (or any fast charged charge) as good and efficient(?) as a 'slow' charge? Will they last the same?
Click to expand...
Click to collapse
Yes. Just imagine it this way: If you fill your car at the fuel station slowly or fast - does that show any effect on your car's range ? - No.
5) What if I turn off the phone, is it going to "fast charge" by default when using the the provided charger?
Click to expand...
Click to collapse
If you enabled that in the settings, yes. Otherwise: No.
One question is missing: "Does Fast charge harm my battery if charging under hot climate conditions?"
Answer: No. There are temperature sensors in the battery, decreasing or even stopping the charge if the temperature gets too high.
Short: The difference between slow and fast charging is - slow charging charges slow. And that's it.
Chefproll said:
No.
It will charge slowly.
No.
Yes.
If you enabled that in the settings.
Short: The difference between slow and fast charging is - slow charging charges slow. And that's it.
Click to expand...
Click to collapse
Thanks!
So why isn't fast charge always enabled? Why are we given the slow charge option?
Sent from my SM-T700 using Tapatalk
fedecape said:
So why isn't fast charge always enabled? Why are we given the slow charge option?
Click to expand...
Click to collapse
To be honest: You already answered your own question - by asking your questions.
If you have a look around XDA, you'll find countless threads discussing the "problem" - many users fear Fast charging may harm their battery.
Some users even believe the battery would be charged with an overvoltage (as that voltage is mentioned on the rating plate of the charger), thus causing damage.
No, not true. That higher voltage is just used for safely "transporting" the charge through the wires by keeping the amperage low. After that, the charging circuit will regulate voltage and amperage down to healthy levels prior to reaching the battery.
But people get misled by many self-proclaimed "experts" (which will surely show up here, too) praying that Fast charge is a work of evil; just wait.
That's why Samsung made that feature an option, not a rule. A courtesy for the overcautious.
Chefproll said:
To be honest: You already answered your own question - by asking your questions.
If you have a look around XDA, you'll find countless threads discussing the "problem" - many users fear Fast charging may harm their battery.
Some users even believe the battery would be charged with an overvoltage (as that voltage is mentioned on the rating plate of the charger), thus causing damage.
No, not true. That higher voltage is just used for safely "transporting" the charge through the wires by keeping the amperage low. After that, the charging circuit will regulate voltage and amperage down to healthy levels prior to reaching the battery.
But people get misled by many self-proclaimed "experts" (which will surely show up here, too) praying that Fast charge is a work of evil; just wait.
That's why Samsung made that feature an option, not a rule. A courtesy for the overcautious.
Click to expand...
Click to collapse
Awesome! Good to know
Hope this thread helps other people too
Thank you!
Chefproll said:
To be honest: You already answered your own question - by asking your questions.
If you have a look around XDA, you'll find countless threads discussing the "problem" - many users fear Fast charging may harm their battery.
Some users even believe the battery would be charged with an overvoltage (as that voltage is mentioned on the rating plate of the charger), thus causing damage.
No, not true. That higher voltage is just used for safely "transporting" the charge through the wires by keeping the amperage low. After that, the charging circuit will regulate voltage and amperage down to healthy levels prior to reaching the battery.
But people get misled by many self-proclaimed "experts" (which will surely show up here, too) praying that Fast charge is a work of evil; just wait.
That's why Samsung made that feature an option, not a rule. A courtesy for the overcautious.
Click to expand...
Click to collapse
Hi again,
Let me ask you one last question.
I need to buy a new battery because I never make it home with charge. Is there anything that I have to keep in mind? Is it OK if I use fast charge with a generic battery?
Thanks
Sent from my SM-N910C
fedecape said:
I need to buy a new battery because I never make it home with charge. Is there anything that I have to keep in mind? Is it OK if I use fast charge with a generic battery?
Click to expand...
Click to collapse
I'd stick with the original Samsung batteries. They had problems in the past (deforming, bulging S4 batteries losing almost all of their capacity - I had one of those myself, got exchanged for free), but I guess they solved the problem.
Reason is: Li-Ion batteries may have different charging parameters; like maximum allowable current.
The Fast charger was made specifically for the Note 4s battery. If you buy a different type, the fast charging current may exceed the current rating of a third party battery, leading to highly unwanted effects including destruction of the battery.
This is not too likely because each battery has (or should have) a built-in charging circuit for limiting the current, which even switches off charging if the battery's temperature reaches unhealthy levels. But it's still possible, depending on the battery type and manufacturer. I wouldn't place any high bets on charging circuits of cheap batteries; everything's possible.
That's why it's best to stick with original batteries - at least in this case.
fedecape said:
Hi again,
Let me ask you one last question.
I need to buy a new battery because I never make it home with charge. Is there anything that I have to keep in mind? Is it OK if I use fast charge with a generic battery?
Thanks
Sent from my SM-N910C
Click to expand...
Click to collapse
If I were you I would stick with the Samsung battery, they don't cost that much and they come with their own charger and holder. It may cost a little more but you get a full warranty with it.
Hi
I am planning to buy this phone.
Can anybody confirm if faster charging is possible with a 2A non stock charger? How much time does it take to reach 100 percent?
Sent from my iPhone using Tapatalk
The phone doesn't have fast charge
For me, it takes 1h 30m to charge from 0% to 100%
Johnny TDN said:
The phone doesn't have fast charge
For me, it takes 1h 30m to charge from 0% to 100%
Click to expand...
Click to collapse
Absolutely correct, the phone doesn't have FAST/QUICK charger technology...
However a higher ampere charger like 2A could still charge a phone faster, hence my query above
Are you sure it takes 90 minutes to fully charge with stock 1A charger as mathematically it's not possible
3000mAH/1000mA=3 hours
Or
3000mAH/1.5H=2000mA or 2A
Pehaps you are using a higher capacity charger? That would explain it...
Sent from my iPhone using Tapatalk
The time of charging with 2A is the same using a original charger with 1A. The limit is inside at the circuit control of charge.
garf02 said:
The time of charging with 2A is the same using a original charger with 1A. The limit is inside at the circuit control of charge.
Click to expand...
Click to collapse
Thanks
This is the 3rd comment I have seen from a user confirming 1A is the max phone can utilise
Such a shame as I think this is the only real flaw with this phone, otherwise it's a great device...
Sent from my SM-G930F using Tapatalk
Yes, you have right.
We can put a 10 A capability charger at our device, but charge control circuit is doing his job and let device charging with 1 A max, even if is there 10 A disposable....
Maybe with some command in hidden menu or with some customized firmware is a way to override this limitation.
(At LG 4X HD is in hidden menu a command that enable fast charging).
Where exactly does one have to change what in the root directory?
I want to test this time.
Senaxo said:
Where exactly does one have to change what in the root directory?
I want to test this time.
Click to expand...
Click to collapse
I doubt we will be able to find any such software hack to allow fast charging.
There just isn't enough development going on for this phone for anyone to discover and share such information
https://www.androidpit.com/huawei-p9-lite-review
Above review was found by another user on this forum where it's mentioned that phone supports 10W (5V×2A)
So this is what I am hoping is correct and is verified by someone who owns the phone already
Sent from my SM-G930F using Tapatalk
That would be really very nice, I would be really happy ).
Maybe fast charge working with another type of charger: Huawei 9V2A Quick Charge Travel Charger
Instead of 5V1A(5W) or 5V2A(10W) with 9V2A(18W) charger, the charge circuit control will sense 9V instead of 5V and maybe switch to fast charge...
2 Amp charger are only needed if you are using a 2 or 3 meter USB wire.
gtdaniel said:
Maybe fast charge working with another type of charger: Huawei 9V2A Quick Charge Travel Charger
Instead of 5V1A(5W) or 5V2A(10W) with 9V2A(18W) charger, the charge circuit control will sense 9V instead of 5V and maybe switch to fast charge...
Click to expand...
Click to collapse
I dont think so.... the options you mentioned actually mean QC 2.0 technology which we know for sure isn't available in P9 lite
There are few mentions of phone supporting 5Vx2A online; one such link shared by me in earlier post...
Read up on QC technology if you want to at below link
http://www.androidauthority.com/quick-charge-3-0-explained-643053/
Lieutenantdaan said:
I dont think so.... the options you mentioned actually mean QC 2.0 technology which we know for sure isn't available in P9 lite
There are few mentions of phone supporting 5Vx2A online; one such link shared by me in earlier post...
Read up on QC technology if you want to at below link
http://www.androidauthority.com/quick-charge-3-0-explained-643053/
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The P9 Lite doesnt support any sort of fast charging. The ability of a phone to charge faster depends on it's hardware and the use of a fast charger. However, with a 2A charger, it slightly decreases charging time since the phone pulls approximately 1050mA. Be careful not to use a charger thats higher than 5V as it will fry your circuitry.
LiaquateRahiman said:
The P9 Lite doesnt support any sort of fast charging. The ability of a phone to charge faster depends on it's hardware and the use of a fast charger. However, with a 2A charger, it slightly decreases charging time since the phone pulls approximately 1050mA. Be careful not to use a charger thats higher than 5V as it will fry your circuitry.
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Where did you get this 1050mA spec, did u measure it yourself? This could be true as well, as fast charging is not observed by anyone until now except few online sources which state otherwise...
The part about damaging phone is inaccurate as QC 2.0 or 3.0 chargers are reverse compatible with old devices which support 5V only, the phone and charger never switch to 9V/12V/20V mode as the technology isn't there...
Sent from my SM-G930F using Tapatalk
Lieutenantdaan said:
Where did you get this 1050mA spec, did u measure it yourself? This could be true as well, as fast charging is not observed by anyone until now except few online sources which state otherwise...
The part about damaging phone is inaccurate as QC 2.0 or 3.0 chargers are reverse compatible with old devices which support 5V only, the phone and charger never switch to 9V/12V/20V mode as the technology isn't there...
Sent from my SM-G930F using Tapatalk
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I did measure it myself with the aid of a friend. By the way, I was referring to a standard 9V/12V charger, not the QC charger.
According to my knowledge, the voltage is like a gateway to your phone, your phone pulls the current. Hence, if you use a standard charger with higher than 5V, you'll most definitely burn your circuitry. BUT....if you use a 5V charger with an abnormally high amperage, the phone will only pull the current it needs.
LiaquateRahiman said:
i did measure it myself with the aid of a friend. By the way, I was referring to a standard 9V/12V charger, not the QC charger.
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Great that you actually measured it, I am assuming using an external device...
That would confirm it without doubt that online reports are incorrect and phone can't charge above appx 1A
Sent from my SM-G930F using Tapatalk
Lieutenantdaan said:
Great that you actually measured it, I am assuming using an external device...
That would confirm it without doubt that online reports are incorrect and phone can't charge above appx 1A
Sent from my SM-G930F using Tapatalk
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yes that is correct
LiaquateRahiman said:
yes that is correct
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Click to collapse
So just a quick question.
This means that for a phone to be able to pull 2A, is not just software control?
It means that the hardware has to support the ability?
V
ivanwong1989 said:
So just a quick question.
This means that for a phone to be able to pull 2A, is not just software control?
It means that the hardware has to support the ability?
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Click to collapse
I believe that is true. Although, most fast chargers (like the samsung one) only supply 1.67A at a higher voltage, normally 9V. This combination increases the output wattage of the charger....Like i said on my earlier post, the voltage is the gateway to the phone while the phone pulls the amperage.