Is it OK to use a 2.1A charger on the Nexus 5? - Nexus 5 Q&A, Help & Troubleshooting

Last year when I bought the Note 2 and saw it used a faster charger than my previous phone and had such a gigantic battery, I bought a lot of 2.1A chargers to replace my older 1A chargers.
Now that I got a Nexus 5, I'm wondering if the 2.1A chargers will either :
*Charge Faster? (if anyone has tested it, how much faster)
*Cap out and only charge as fast as the device permits?
*Damage the device because the phone cant regulate that charge speed?

anyone?

Scythe024 said:
anyone?
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The new battery`s limit the input by a charger to a acceptable level, you don`t have to worry regarding damage to the battery or phone due to a too high input (overcharging).

Any device made in the past few years will only draw as much as they're capable of using. Keep in mind that USB chargers are rated as a MAXIMUM, not as a constant. They CAN put out 2.1 amps, does not mean they MUST.

Related

[Q] new to nexus !

does the phone really charge so slow??
There's already a few threads discussing the slow charge time. Seems to be an issue for many. All Galaxy S phones seem to take a lot longer to charge than say an iPhone.
My Nexus S always makes it through a good 16+ hour day without needing a charge, and I always charge overnight while sleeping, so I haven't personally noticed this as an issue.
Like any smartphone these days, it's probably a good idea to just partial charge during the day when you're in a situation (like the car, or at your computer desk) that lets you. It's not necessary to do the full drain, full recharge only with the current battery technology.
Its odd, mine and my wife's phones take maybe 3 hours to get to full from sub30% yet that seems to be the outlier.
Sent from my SubCyan CM7 Google Nexus S!
Are you charging it on the supplied wall charger or through a computer's USB port? It charges significantly slower through a USB port than from the wall charger
bajansurfer said:
Are you charging it on the supplied wall charger or through a computer's USB port? It charges significantly slower through a USB port than from the wall charger
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Its seems to go just as fast for me either way
Sent from my SubCyan CM7 Google Nexus S!
kenvan19 said:
Its seems to go just as fast for me either way
Sent from my SubCyan CM7 Google Nexus S!
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Wall charger charges a bit faster than USB since its rated at 700 mA rather than 500 mA. Best bet would be to go with a car charger that charges at 1000+ mA.
i used wall charger..
Hi guys i have a wall charger from my nokia n97 mini which is 1200mA. Can i use it or i will destroy the battery?
alexxdj said:
Hi guys i have a wall charger from my nokia n97 mini which is 1200mA. Can i use it or i will destroy the battery?
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If the voltage is correct, the amperage should not be an issue...the phone should only draw the current it actually wants/needs.
But bear in mind, if your phone blows up, it's not my fault, I have no experience with that charger or it's actual ratings.

New battery charger

Hello,
my battery charger stopped working and i need a new one. I read a few review and i'm a bit confuesd, not every chargers with the capability to deliver 1000mAh works with every device. So which one oft them works with the desire s and delivers 1000mAh and not just 500mAh?
just buy a oem wall charger ,, easily found on ebay and also cheap
does it has any difference between 1000 and 500mah chargers? now i'm using original liveview charger with 500mah on it but also have 1A iPhone charger.
vartotojas123 said:
does it has any difference between 1000 and 500mah chargers? now i'm using original liveview charger with 500mah on it but also have 1A iPhone charger.
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I also have a 1A charger (coming from a SGS3), but I haven't had any problem
MatthewJoe said:
I also have a 1A charger (coming from a SGS3), but I haven't had any problem
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Click to collapse
same here
Overheating
im using an old S2 charger i think, its got an output of 5V, 0.7 amps and after flashing a costom rom, jellyfirebean im getting serious overheating issues, but only while charging with the phone on.
however i cant confirm this is the chargers problem yet
just a note, its the phone that heats up not the charger
coolkid12239 said:
im using an old S2 charger i think, its got an output of 5V, 0.7 amps and after flashing a costom rom, jellyfirebean im getting serious overheating issues, but only while charging with the phone on.
however i cant confirm this is the chargers problem yet
just a note, its the phone that heats up not the charger
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Click to collapse
no the phone never heats up using original wall charger
Talha7866 said:
no the phone never heats up using original wall charger
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Double that. Overheating can be only caused by the phone itself, or a defected battery (means it is near death, but for serius heating, you will notice like 1hrs of battery life for the phone).
On another note for the topic. I use 3 type of chargers for my phones:
At home my ASUS tab's one (which is rated 5V 1A at the standard USB, plus the extra for the dock, but it is ASUS specific), at work an old ZTE "dumbphone" charger (which is rated 5V 0.75A, and is a high frequency switching type, so really energy-efficient) and for any other my old SE X8's one, which is 5V 650mA (which is also switching type). Also dedicated charger cables, 1 nokia, 1 SE, 1 HTC and 1 ZTE at my car.
The phone's original 5V 1A is NRFB at the box of the phone, but I have a security backup Samsung charger (rated 5V 500mA and pass-trough type, so not really efficient, but stable) which works just fine. The S is not capable (or not enabled just yet) of fast charge mode AFAIK so no really chance for 500mA or more when charging (even when GPS and 3G on, and screen on max, which is aroung 430mA when I last measued it with a service cable).
reporting back
yeah i can confirm it was the 2 year old htc battery
i am now using 2 anker 1600mah batterys and they last a LOT longer + come with an enternal charger so i always have one charged, it also charges the old htc battery too externally so i can now use 3 battieries mwahahahaa
note i did have to delete battery stats in cwm to recalibrate

What amp charger does the Note 4 have?

Is it 2a?
I pre-ordered it and wish to have backup wall/car chargers ready to go for next week.
Tnx
It's a 2A Quickcharge 1.0 unit. Quickcharge boosts the voltage (to ~9v from 5v) when the phone is less than 50%, so you can't get just ANY 2 amp charger and expect it to work as quickly.
If you care (or are willing to wait) Quickcharge 2.0 wall plugs should ship in ~2 months. That boosts the input to 15 volts (IIRC) and will supposedly charge from 0% to 100% in about 45 minutes.
yeah I guess I can wait. I can always keep an old 1a plug by the bed for long overnight charges.
Does samsung sell oem chargers at release date?
9V 1.67A and 5V 2A is what it says on the charger
9V 1.67A is the rapid charging part
it's a dual voltage charger. 5v @ 2.0A and 9v @ 1.67A
For some unknown reason, I have a 2.1 amp car charger and cheap 1 amp ac charger. My HTC One M7 charge slow but the Note 4 charge much faster using the same charging device. I dont know what it is, but I like it!
So the charger on Samsung's website is not the same one that came with the Note 4?
http://www.samsung.com/us/mobile/cell-phones-accessories/ETA-U90JWEBXAR
chong67 said:
For some unknown reason, I have a 2.1 amp car charger and cheap 1 amp ac charger. My HTC One M7 charge slow but the Note 4 charge much faster using the same charging device. I dont know what it is, but I like it!
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I think it's the Fast Charging 2.0 hardware in the Note 4?
catscanmeow said:
I think it's the Fast Charging 2.0 hardware in the Note 4?
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Not sure it has anything to do with the Fast Charging hardware. The Fast Charging works with the provided charger, which is a dual voltage one. I used my iPhone's/iPad's car charger with my Note 4 and didn't notice a speed-up in charging time.
On a tangential note: I can't find anyone who sells the Note's fast charger separately yet and I needed another one for use with the Note 4 at the office. So I used the Asus charger that came with my original 3G Nexus 7 (which remains forgotten on a shelf). It works pretty well. I noticed that the Asus charger charged all my handsets (HTC One M8, Nexus 5, Z2, Oppo Find 7) pretty reliably -- the M8 and Nexus 5 seemed to charge faster compared with their stock chargers.
Anyone who's held the Asus charger knows it's a little bit bulkier and a few ounces weightier than the usual chargers that come with smartphones these days so there may be a hardware component to it. Whatever it is, it's probably the best standalone charger I've had the cables connect via a USB port so you can use it with your iPhone too.
If you can find at a garage sale or some random tech shop, you should pick one up. Works great with everything.
matrix2004 said:
So the charger on Samsung's website is not the same one that came with the Note 4?
http://www.samsung.com/us/mobile/cell-phones-accessories/ETA-U90JWEBXAR
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it's different
jpbl1976 said:
So I used the Asus charger that came with my original 3G Nexus 7 (which remains forgotten on a shelf). It works pretty well. I noticed that the Asus charger charged all my handsets (HTC One M8, Nexus 5, Z2, Oppo Find 7) pretty reliably -- the M8 and Nexus 5 seemed to charge faster compared with their stock chargers.
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Dude how many phones do you own !
View attachment 4002691
Like this support for gala×y Note 4
Sent from my SM-N910G using Tapatalk

Faster charging?

i recently bought the P900 (wifi version).
full charge will take around 5 hours, which in practice translates to 4 hours (i never get to 0% and charging from 90%\95% and on will be slowed down by the device anyway).
is there any way to speed up the charging?
like buying a 5.3V 3A charger. will the OEM cable be able to transfer the additional current?
could the device even take advantage from a 3A charger?
if so, can you recommend on any?
its important to me because i always use 100% brightness.
No. In the past mobile devices (mostly phones) shipped with cheap 500ma chargers and bumping up to higher amperage chargers would have an affect on charge time. Those days are gone as charging efficiency of chargers and cost to produce have lead to included chargers being optimized for charging times. Charging circuitry in the devices is going to take what it's rated to take and no more, so once a charger is plugged into it that's rated the same as the device is designed to take there's little else that can be done to speed up charging.
Bottom line - the charger that came with the tablet if it's the official one (i.e. if you bought new, not used and someone included the wrong one) is optimized to charge the tablet at the fastest rate. Based upon the numbers you noted your charge times are not excessive, the tablet is designed to take around 2A and it won't take 3A even if the charger is rated for it.
If you want faster charging you need to sell your tablet and get a Snapdragon variant instead (LTE tablets from various carriers) or start practicing better battery management to reduce how depleted your tablet gets. For me that means not running at highest brightness unless I really need it and topping off the battery whenever I can. When I get really low and I have a reasonably long period that I can charge I'll sometimes shut the tablet completely down rather than put it to sleep so that charging is accomplished with near zero load on the battery.
oh, bummer.
well, i guess i would have to learn how to live with that.
TY for your reply.
im planning on buying a 2 port charger so i wont have to carry so many stuff with me,
how much slower the device will charge with a 5.0V charger?
should i look for a 2 port 5.3v charger? a normal device wont have troubles with that?
It's not the voltage it's the amps. If you want to charge two devices simultaneously as quickly as possible the power supply needs to be rated to output the wattage necessary to provide the amperage the devices will draw for maximum charge rate.
My recommendation is to find something capable of over 20 watts (2A x 5V = 20watts). I'd buy this for future Qualcomm quick charge use.
https://www.anker.com/products/A2031111
Sent from my SM-P900 using Tapatalk
my question was how much slower the note pro will charge with a 5.0v 2A charger as opposed to the OEM one which is 5.3v 2A.
and if there is any problem to use a 5.3v charger with a normal smartphone.
charging the note pro is more important to me than my other devices.
Yonany said:
my question was how much slower the note pro will charge with a 5.0v 2A charger as opposed to the OEM one which is 5.3v 2A.
and if there is any problem to use a 5.3v charger with a normal smartphone.
charging the note pro is more important to me than my other devices.
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Yes but you also noted that you want to buy a 2 port version and I'm saying that the voltage is only part of the equation. Unless you are already aware that you need one rated at 2A simultaneously (you didn't specify). I honestly never measured between the two, I do not worry about 5V vs 5.3V since the charging voltage of the lithium ion cells is under 5V anyway. AFAIK the current is more critical. Maybe someone else more knowledgeable in electrical engineering can chime in since I'm unsure how the charging circuit within the phone will step down the voltage from the charger to the battery. All I know is if one tops off regularly or charges overnight there's no night and day difference between the stock 5.3V charger and a 5V one so long as the aftermarket one is rated 2A or more.
Sent from my SM-P900 using Tapatalk

Question Do the wall wart and cable matter?

I have some Anker brand USB-A to USB-C charging cables and just the wall wart (is there a technical name for those things?) from something... probably one of my old Samsung phones... it says "Adaptive fast charging" and output says "9.0 V === 1.67A or 5.0 V === 2.0 A".
( know that stands for "volts" and "amps", but I don't understand what the rest of it means... 2 Amps is "faster" than 1.67 Amps... I think... but what makes it charge at one speed or the other?)
My real questions:
1) Will using the USB-A to USB-A cable that came WITH the Galaxy S22 Ultra make a difference in charging speed?
2) Do I need to get a different "wall wart"? If I want one that supports USB-C plugging into it, I do, but will it gain me anything?
Thanks.
Edit: I guess tehnically it's an "AC Adapter" or a "power supply brick"...?
See how what you have now performs. The best/fully compatible would be Samsung own charger. And any decent quality cables
I use my original charger from my Samsung Galaxy Note 4 on my S22 ultra. It charges it about 90 minutes. I suspect this is the same charger as yours.
1.67amps x 9v is 15.03watts.
5.00apms x 5v is 10.00watts.
15 Watts is a nice steady rate to be charging your battery at.
45w...is really too fast if you want your battery to last more than 2 years.
pjaysnowden said:
I use my original charger from my Samsung Galaxy Note 4 on my S22 ultra. It charges it about 90 minutes. I suspect this is the same charger as yours.
1.67amps x 9v is 15.03watts.
5.00apms x 5v is 10.00watts.
15 Watts is a nice steady rate to be charging your battery at.
45w...is really too fast if you want your battery to last more than 2 years.
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45W is nothing and won't really degrade your battery much. Also, keep in mind, that batteries degrade regardless if you use them or not, they have a shelf life. So, in 2-3 years you will mostly need to replace your battery anyway if you plan to keep your phone for that long (assuming that you want the battery to be at it's "full" capacity after 2-3 years).
ekin_strops said:
45W is nothing and won't really degrade your battery much. Also, keep in mind, that batteries degrade regardless if you use them or not, they have a shelf life. So, in 2-3 years you will mostly need to replace your battery anyway if you plan to keep your phone for that long.
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Even still...I'll keep slow charging my phone...knowing that it will last 5 years.
My note 4 battery outlasted the actual phone. The touch screen packed up first. The battery still lasted 6 hours screen on.
I replaced it with a Note 9. Again...the battery was fine...and original. Same story...6 hours of screen on time.
Now I have a Note 22....or S22 Ultra.
I have used the Note 4's charger for all of these phones...with my 10watt Kosee wireless charger. Even on the Note 4...with a wireless adapter.
ekin_strops said:
45W is nothing...
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It's still 10 Amperes into the battery.
I'm often running ~10 Amperes into my dual 224 Ampere-hour 6 Volt "golf cart" batteries.
They also weigh about 130 pounds more than your battery!
Renate said:
It's still 10 Amperes into the battery.
I'm often running ~10 Amperes into my dual 224 Ampere-hour 6 Volt "golf cart" batteries.
They also weigh about 130 pounds more than your battery!
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It doesn't push 10 Amperes into the battery.
PPS charging is pushing from 3.3V to 20 Volts at 2.25Amps, it's dynamic charging and it depends on the device's state (temperature of the battery, the charger, the capacity of the battery).
I'm not sure where you get this information, and not trying to be rude now but maybe you should check up on both PD and PPS charging protocols that Samsung uses before assuming it's charging at 10 amps.
Dougmeister said:
I have some Anker brand USB-A to USB-C charging cables and just the wall wart (is there a technical name for those things?) from something... probably one of my old Samsung phones... it says "Adaptive fast charging" and output says "9.0 V === 1.67A or 5.0 V === 2.0 A".
( know that stands for "volts" and "amps", but I don't understand what the rest of it means... 2 Amps is "faster" than 1.67 Amps... I think... but what makes it charge at one speed or the other?)
My real questions:
1) Will using the USB-A to USB-A cable that came WITH the Galaxy S22 Ultra make a difference in charging speed?
2) Do I need to get a different "wall wart"? If I want one that supports USB-C plugging into it, I do, but will it gain me anything?
Thanks.
Edit: I guess tehnically it's an "AC Adapter" or a "power supply brick"...?
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Click to collapse
1. With Galaxy S22 there is an USB-C to USB-C cable not USB-A (maybe a typo on your side). That cable is rated for the full power charge the device supports, that is 45w. It can make a difference if you are using it with a proper charger (that's the actual naming for the "wall wart"...it is called "charger" or "wall charger" btw).
2. Yes, you should get a different one if you wanna charge faster. Your actual charger is a (so called) "fast" charger with the charging power varying from 15W to 10W. Your phone supports from 25W up to 45W, that are the "ultra fast" chargers.
I'd suggest to get at least a 25W charger, also there are some extremely good Anker alternatives (even better that original Samsung chargers), look for Nano II 635 or 615 Anker chargers.
If you wanna keep your phone for an extended period (like 4-5 years or more), you might wanna activate that battery protection charge that only charges it till 85% and will preserve it for a longer period. If you switch phones after 2, even 3 years, don't bother, charge it as you like fast or slow till 100%
ekin_strops said:
I'm not sure where you get this information...
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If the charger is rated at 45 Watts and sometimes actually delivers that:
45 Watts / (maximum) 4.3 Volt battery > 10 Amperes
Maybe they are PWM-ing it or whatever, but the peak current is > 10 Amperes.
Ok, we can subtract the efficiency of the buck converter, but it's still in that neighborhood.
What would happen if I bought and used a 65-watt charger? Would it automatically drop down to 45 watts to charge my S22 Ultra? Could it damage it, etc.?
Dougmeister said:
What would happen if I bought and used a 65-watt charger? Would it automatically drop down to 45 watts to charge my S22 Ultra? Could it damage it, etc.?
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1.Q. Yes.
2.Q. It not gonna damage it if not pushed to full 100% or discharged completely before connecting.
Sorry to hijack this thread, but is there a decent wireless charger, that will give me fast wireless charging with a Spigen powerarc arcstation pro 65w charger? I have tried about 3-4 cheap crap ones, and they all give reg wireless charging of about 22% for an hour's charge.
The S22U‘s maximum wireless charging rate is only 15 watts. I use the Spigen PowerArc ArcField 15 watt wireless charger, which is powered by a conventional charger via USB C cable and works very well charging my S22U.

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