Develop Bugs

Charger Concerns

I see that the wall charger for the Galaxy Nexus outputs 5V and 1A. Unfortunately, none of the extra chargers I'd like to use as additional chargers have this output. Some of them are 5.1V, and some of them all put out under 1A.
From what I understand, using a charger w/ a higher voltage could potentially damage the phone. I know that this unlikely considering it's only an extra .1V in my case, but I don't want to risk it.
As for the amps, I believe that using lower amps isn't dangerous, but may result in charging taking longer than normal.
Are these two assumptions correct? Also, does anyone know of any cheap chargers that put out 5V/1A? If you put in "phone charger" in Amazon, the second hit is a Samsung OEM charger that puts out 5V/0.7A, but I'd rather get one that is going to be an exact match.

700-800mah are fine and acceptable for charging. But if wanting to play games on a charger and still get some kind of charge, go with a 1000 mah charger. 1000 mah charger is also best to use while using mhl so you can hopefully not lose battery charge while streaming video over hdmi.
Sent from my samsung gt i9250 which is in the wrong country.

Speaking of the charger... anyone found a cheap charger adapter for the Nexus? I don't like the massive brick of a "international adapter" Handtec packaged with the phone >.>

Dmw017 said:
Speaking of the charger... anyone found a cheap charger adapter for the Nexus? I don't like the massive brick of a "international adapter" Handtec packaged with the phone >.>
Click to expand...
Click to collapse
http://www.amazon.com/Samsung-Micro-Travel-Charger-M540/dp/B002HJBM04
http://www.amazon.com/Samsung-Travel-Charger-Adapter-MicroUSB/dp/B0049IE70I

Dmw017 said:
Speaking of the charger... anyone found a cheap charger adapter for the Nexus? I don't like the massive brick of a "international adapter" Handtec packaged with the phone >.>
Click to expand...
Click to collapse
I'm using a Griffin charger for the iPhone (1 amp)... it's very small and the plug blades fold up, making it very pocketable. Give the included iPhone cable to a friend.
http://www.amazon.com/Griffin-NA231...?s=electronics&ie=UTF8&qid=1322795627&sr=1-33

alee said:
I'm using a Griffin charger for the iPhone (1 amp)... it's very small and the plug blades fold up, making it very pocketable. Give the included iPhone cable to a friend.
http://www.amazon.com/Griffin-NA231...?s=electronics&ie=UTF8&qid=1322795627&sr=1-33
Click to expand...
Click to collapse
it's.. 24 bucks ... for a charger..
lol fml

Dmw017 said:
it's.. 24 bucks ... for a charger..
lol fml
Click to expand...
Click to collapse
Haha, it's a nice charger.
If you don't get that one, do get a charger that does at least 700mA... or ideally 1A. Some of the cheaper chargers don't put out a lot of power and it will take a long time to charge your phone.

alee said:
Haha, it's a nice charger.
If you don't get that one, do get a charger that does at least 700mA... or ideally 1A. Some of the cheaper chargers don't put out a lot of power and it will take a long time to charge your phone.
Click to expand...
Click to collapse
...you say it folds too huh :/ ....
but for that price, i wonder if there are any samsung chargers that are just as good if not better..
that is Apple, after all
hey isnt http://www.amazon.com/Griffin-Techn...al-USB-Charging/dp/B004EYH5WY/ref=pd_sim_e_10 the same product , it says it does 5 volts at 5 watts ... thats the same right?
edit: some people are reporting that the charger only charges at 0.5A instead of the full 1A on [some] android devices. if you have the charger, can you confirm your nexus charges at the full 1A watts

I've been doing fine with just plugging it into my computer like I always do with every other phone.
Sent from my Galaxy Nexus using xda premium

Dmw017 said:
hey isnt http://www.amazon.com/Griffin-Techn...al-USB-Charging/dp/B004EYH5WY/ref=pd_sim_e_10 the same product , it says it does 5 volts at 5 watts ... thats the same right?
edit: some people are reporting that the charger only charges at 0.5A instead of the full 1A on [some] android devices. if you have the charger, can you confirm your nexus charges at the full 1A watts
Click to expand...
Click to collapse
Same one.
Good question on whether it's putting out a full 1A. I guess what I do is check the charge times tomorrow with a few different 1A chargers to see if it measures up.

I use this for home:
http://www.amazon.com/Cellet-Charger-Retractable-Cable-myTouch/dp/B004XVM1T0
And this for the car:
http://www.amazon.com/Griffin-Powerjolt-Dual-Universal-Micro/dp/B0042B9U8Q
Both are dual-USB and put out 1amp. Charges my GNEX and iPhone 4 (work) at the same time without issues.

Just feel like to chime in here for another question.
I know typical USB port from a PC outputs 0.5A while the wall charger outputs 1A, so besides charging time, is there any particular advantages to use wall charger over USB from PC?
I've read somewhere else states that despite the longer charging time using a USB port from a PC, it provides more thorough charges hence is better for the battery than using a wall charger, is this true?
Thanks!

assisterah said:
Just feel like to chime in here for another question.
I know typical USB port from a PC outputs 0.5A while the wall charger outputs 1A, so besides charging time, is there any particular advantages to use wall charger over USB from PC?
I've read somewhere else states that despite the longer charging time using a USB port from a PC, it provides more thorough charges hence is better for the battery than using a wall charger, is this true?
Thanks!
Click to expand...
Click to collapse
I've read that the wall charger drops the battery down to 90ish % after it hits 100% and just goes between the two levels until you unplug your charger
While a USB charge is slower and charges your device up to a "fuller" charge
...I may be unfathomably wrong though
---------- Post added at 10:57 PM ---------- Previous post was at 10:56 PM ----------
man that little Apple charger is so damn cute ... lol , ill probably end up buying it once the 1A volt charge is confirmed
edit: just bought it lol, oh well.. it will probably maybe more or less somewhat possibly work like it should at 1A :}

assisterah said:
Just feel like to chime in here for another question.
I know typical USB port from a PC outputs 0.5A while the wall charger outputs 1A, so besides charging time, is there any particular advantages to use wall charger over USB from PC?
I've read somewhere else states that despite the longer charging time using a USB port from a PC, it provides more thorough charges hence is better for the battery than using a wall charger, is this true?
Thanks!
Click to expand...
Click to collapse
I'm not an expert on the subject but I was under the impression that cycles (charge + discharge) were a bigger factor on battery life than something like this. The longer a current is running through the battery (charge or discharge) is detrimental to it's life span.
Leaving a laptop plugged in all the time ruins its battery is my source on this one. I would say it's because it has a constant charge running through the battery.

qreffie said:
I've been doing fine with just plugging it into my computer like I always do with every other phone.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
That takes a lot longer vs plugging it into the wall

rashad1 said:
That takes a lot longer vs plugging it into the wall
Click to expand...
Click to collapse
True dat. Unless it has changed , USB only outputs 500mA.
Sent from my Galaxy Nexus using Tapatalk

[hfm] said:
True dat. Unless it has changed , USB only outputs 500mA.
Sent from my Galaxy Nexus using Tapatalk
Click to expand...
Click to collapse
500mA is the max before the PC will disable the port. So your actually get less current.
There are some ports, depending on the motherboard that have a option of outputting more power for charging devices, and also have the port powered when the computer is off. But a normal usb 2.0 port is limited to 500mA max per spec... so a normal usb 2.0 port charging a phone is drawing less then 500mA, or it would get and over current condition and disable the port.

I design electronics and work with USB and batteries often, so let me clear some stuff up in no particular order:
- PC ports are limited to 500mA so will only ever output a max of 500mA
- You can use a wall charger that outputs 1000mA but on most devices the data pins on the micro USB need to be shorted to tell the phone it can try to draw more than 500mA. This is true for HTC devices for example. That means if you get a cheap charger that doesn't short the data pins, when you plug your standard micro-usb cable into it, it will still only charge your phone at 500mA.
- The charging controller is actually in the phone. It decides based on temperature (there's a sensor in the battery), current, voltage across the battery (current charge) and characteristics of the type of battery to figure out how much current to allow into the battery. Although its true that a 500mA charger may have different affects than 1000mA chargers, there usually is very little perceivable difference. Which is (slightly) better really depends on the charging controller and how it decides when to stop charging.
- When the battery is full, the phone continues to 'trickle charge' for a period of time. This isn't a bad thing. Overcharging a Lithium battery can be extremely dangerous, so normal charging occurs at a high speed and then slows down at a safe limit below the 'true' 100%. After that the phone continues to trickle charge to top up the battery. This is the reason you read in phone manuals you should charge the phone for 8 hours or overnight for its first charge.
- When charging at 500mA, the battery does not get as hot. This usually means you get closer to the true 100% before 'trickle charging' starts. With a 1000mA charge the battery heats up a lot more so charging may switch to trickle much sooner. Here's an example with made up figures.
Lets say you charge your battery with a 500mA charger, and it takes 2 hours. When the phone shows 100% it may actually be at 99%, and trickle charging. Leaving it for another 30 mins may take it to its full capacity.
Now, lets say you charge your battery with a 1000mA charger, and it takes 1 hour. When the phone shows 100% it may actually be at 98%, and trickle charging - It stopped sooner because the battery was hotter. Leaving it for another 30 mins may take it to full capacity.
Conclusion.. the 500mA charger took 2.5 hours, while the 1000mA charger took 1.5 hours. However if you unplugged both when the phone showed 100%, the 500mA charged battery may last longer, and so you think the 500mA somehow resulted in a more thorough charge!
At the end of the day, it doesn't matter which you use. the absolute charge cycles is what counts. Charge to 100%, then dont charge till its 0 for best battery care. Constantly plugging into a charger or dock all day on and off is bad. But having said that, your phone is there to be used, so a sensible balance of the two is the best bet.

Thank you so much for the detailed response, kam187. Would you recommend avoiding using a 5.1V charger, considering the phone came with a 5V charger?
Sent from my Galaxy Nexus using Tapatalk

I wouldn't use it. The 0.1v probably won't make any difference, but it may not be regulated. Chargers with these odd values sometimes don't have any regulator inside them. That could damage your phone as the voltage could shoot up and down as the current draw changes.
Just search amazon/ebay for any MicroUSB charger, and pick one from a reputable manufacturer like Motorola, HTC, Samsung etc. Since all phones now use MicroUSB, there's loads of these chargers around from previous phone models etc.
Here's just one I saw on amazon.com:
http://www.amazon.com/Samsung-Trave...E70I/ref=sr_1_3?ie=UTF8&qid=1322808220&sr=8-3

Faster charging times

Just posted this in another forum. Heres the link:
http://forum.xda-developers.com/showthread.php?p=19994949#post19994949

So you charged the note with it in one hour?
Isn't there a limitation on the current the charger outputs while charging?

I didn't charge the Note. I originally posted this in another section for another phone model if you follow the link. I posted the thread here cause Note owners would get benefits from this charger in quicker times. I do like this one better than Apples 2A charger. Hp's is sleeker, compact and comes with a 5ft cable.

HP Touchpad USB charger Amazon deal
spinrite said:
Just posted this in another forum. Heres the link:
http://forum.xda-developers.com/showthread.php?p=19994949#post19994949
Click to expand...
Click to collapse
Thanks for the info. Just found it on Amazon for $9.88.

Every phone charges slowly from PC USB port, right?
Do you think this would be safe? It's a cable that is designed for portable hard drives, to give them enough power. Maybe it would give the phone too much amperage (?)
My quick research finds that a typical PC USB port (and for sure Mac) has 500 mA power, so if you used this cable with two inputs, you'd be giving the Note 1000 mA which is basically like the wall charger, so it should be safe. What do you think?

I've used it for 4 full charges and the battery stays cool but charges fast. No problems to date. It's been a great find.

Well, i have been using the charger that came with my Galaxy tab wich is 2 amp, since atday one.
No problem at all. It charges in little more than an hour.
I also have been doing this for more than a year with mi exiphone and the charger from the Ipad.
Maybe in the long run the battery life suffers, but i haven't seen anything like that. And honestly, waiting two and a half hours to get the phone charged via regular charger and ready to go me is not an option.

Going to order one right now and give it a try.
Does anyone know of any car chargers that can charge at about the same speed?

PowerJolt iPad charger
jojorios said:
Going to order one right now and give it a try.
Does anyone know of any car chargers that can charge at about the same speed?
Click to expand...
Click to collapse
Griffintechnology PowerJolt ipad car charger http://store.griffintechnology.com/ipad?griffin_product_categories=164

Tiamath99 said:
Well, i have been using the charger that came with my Galaxy tab wich is 2 amp, since atday one.
No problem at all. It charges in little more than an hour.
I also have been doing this for more than a year with mi exiphone and the charger from the Ipad.
Maybe in the long run the battery life suffers, but i haven't seen anything like that. And honestly, waiting two and a half hours to get the phone charged via regular charger and ready to go me is not an option.
Click to expand...
Click to collapse
Wow, crazy.
Would you be willing to install Battery monitor widget and show me the log file during charging? Just curious to see the rate of charge (i.e. during the start and end, as it slows down)
- Frank

That would be the perfect buy then :
http://www.amazon.com/Griffin-Techn...EW6Y/ref=sr_1_1?ie=UTF8&qid=1323167156&sr=8-1
Sent from my GT-N7000 using XDA App

No problem Frank.
I'll try to do it as soon as i get home tonight.
---------- Post added at 12:15 PM ---------- Previous post was at 12:09 PM ----------
mfractal said:
That would be the perfect buy then :
http://www.amazon.com/Griffin-Technology-PowerDuo-Charger-iPhone/dp/B003GAEW6Y/ref=sr_1_1?ie=UTF8&qid=1323167156&sr=8-1
Sent from my GT-N7000 using XDA App
Click to expand...
Click to collapse
It is.
I also have been using the 2 amp car charger that came with the original car mount of the Galaxy tab for the note and works great.
2 amp rules!!!!

So, following the same logic - the iPad charger should fit too. I am testing it now - so far so good.

ChodTheWacko said:
Wow, crazy.
Would you be willing to install Battery monitor widget and show me the log file during charging? Just curious to see the rate of charge (i.e. during the start and end, as it slows down)
- Frank
Click to expand...
Click to collapse
I installed the Battery Monitor Widget. It says Techno: Li-ion 1500/1500mAh. This is obviously incorrect for the Note. So can anything it says about the Note's battery be of any use?

cushcalc said:
Thanks for the info. Just found it on Amazon for $9.88.
Click to expand...
Click to collapse
I found it too
Got it for $0.00 and free 2 day shipping
Amazon messed up with one of their promotions and gave me 2-$5 promotional credits when I purchased $9.51 li-ion duracell batteries. Boy, I love Amazon

Do the Apple 2A chargers for the iPad work for "fast charging" the Note? I know when I bought one in the hopes of fast charging my Galaxy S it didn't work. The Galaxy S just recognizes it as a regular USB charger. No matter which USB cable I use (even the OEM Samsung that came with the GalaxyS)
The charger I bought was this one from Macally, the CARUSB10 and it does not work for fast charging:
http://www.macally.com/en/Product/ArticleShow.asp?ArticleID=332
However, if I use my Samsung AC wall charger or my Wife's car charger for her Blackberry it is recognized as a "AC" charger and I get the good charging speed.
Riley

cushcalc said:
I installed the Battery Monitor Widget. It says Techno: Li-ion 1500/1500mAh. This is obviously incorrect for the Note. So can anything it says about the Note's battery be of any use?
Click to expand...
Click to collapse
That amperage is an estimate. I guess what is more interesting the time between percentages.
- Frank

I have used a 2A Iphone charger without any problem. Same charger didn't work for my previous Galaxy Tab 7".
Ernesto de Bernardis
N900 - Galaxy Note

^^ yup, same here. No problem with 2A iPad charger. Haven't measured but charging times are at least 50% faster.

Neat!!
So, the Apple fast chargers now "fast charge" with the newer Samsung devices?
Riley

Secondary battery charger?

Hi,
Initially i was thinking about getting a bigger 3000+mah battery or something but i've realized that i like the form factory of the GNex so i won't go for it.
Now i have 2 batteries the 2100mah and the original one that came with Verizon GNex.
I have looking for a external battery charger and found this
Has anyone here tried these, they seem to be the cheapest way to make use of both batteries.
Also the current wall charger i have reads the following:
input: 0.4A
Output: 5.3V=2.0A
Is the ebay charger in the above link close to the above specs as i don't know what they actually mean
Thanks in advance

I can't answer your first question but I can answer your second one.
Basically, your current charger is capable of charging the spare battery at a faster rate than the eBay charger.
The "charging rate" of 2.0A/2000mA versus the eBay charger's 0.8A/800mA.
When I'm looking for chargers, I prefer chargers that have an output of 1.0A/1000mA or greater so that my battery or phone is charged faster.
800mA is better than average. I'd find that acceptable.
I find most chargers have an output of 500mA. As a comparison, the OEM Samsung USB wall charger has an output of 1.0A/1000mA.
EDIT: In case anyone's worried about blowing up their battery using a charger with a higher amperage output then OEM, here's some reading material... bit.ly/xl2NPI
The only downside to using anything over 1.0A is that it may shorten the lifespan of your battery (the higher the amperage, the faster the charge, but it also comes with more heat, and more heat is bad for your battery).

What kind of wall charger are you using?
I bought a Cellet dock/charger. It can charge the phone and an extra battery at the same time. I mostly use it to only charge an extra battery. Sometimes it takes 4+ hours to charge a battery that is connected in the extra battery slot. WTF??? 4+ Hours?

ChappellHeel said:
What kind of wall charger are you using?
I bought a Cellet dock/charger. It can charge the phone and an extra battery at the same time. I mostly use it to only charge an extra battery. Sometimes it takes 4+ hours to charge a battery that is connected in the extra battery slot. WTF??? 4+ Hours?
Click to expand...
Click to collapse
I'm just using the OEM Samsung USB wall charger that came with my phone. It's sometimes listed as a "travel" wall charger. It has an output of 1.0A.
What's the output of your Cellet adapter (i.e. what you plug into the wall)? I'm pretty sure it has an output of 1.0A from what I've read.

Have you tried one of these?....IMO its better than carrying a couple of batteries around.
http://www.amazon.com/PowerGen-Exte...d=1348865471&sr=1-1&keywords=portable+charger
Sent from my Galaxy Nexus using xda premium

707BeastMode707 said:
Have you tried one of these?....IMO its better than carrying a couple of batteries around.
http://www.amazon.com/PowerGen-Exte...d=1348865471&sr=1-1&keywords=portable+charger
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
Good for traveling, but not good for when you're on the go.
Sent from my Galaxy Nexus using Tapatalk 2

ChappellHeel said:
What kind of wall charger are you using?
I bought a Cellet dock/charger. It can charge the phone and an extra battery at the same time. I mostly use it to only charge an extra battery. Sometimes it takes 4+ hours to charge a battery that is connected in the extra battery slot. WTF??? 4+ Hours?
Click to expand...
Click to collapse
I am using the official HP touchpad charger, they are monstrous.
It charges the 2100mah battery from being dead to 100% with sync on in 1.5 hrs.
4+ hrs. is too long.
You can get on wallmart here or on ebay.
I haven't been this lucky with other chargers i've bought on ebay.

707BeastMode707 said:
Have you tried one of these?....IMO its better than carrying a couple of batteries around.
http://www.amazon.com/PowerGen-Exte...d=1348865471&sr=1-1&keywords=portable+charger
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
Ya i like these, but i would have to carry a cable and a battery at the same time, plus i don't have a tablet or any other gadget that uses microUSB charging.
On another note do these come with 2A charging instead of 1A??
if yes than i might just pick one up.

Alternative?
I've recently purchased this official charger. Does the job perfectly fine and is very small and sleek
http://www.google.co.uk/search?q=Samsung+Battery+Charger+Stand+without+Battery+for+Galaxy+Nexus&oq=Samsung+Battery+Charger+Stand+without+Battery+for+Galaxy+Nexus&sugexp=chrome,mod=10&sourceid=chrome&ie=UTF-8#q=Samsung+Battery+Charger+Stand+without+Battery+for+Galaxy+Nexus&hl=en&prmd=imvns&source=univ&tbm=shop&tbo=u&sa=X&ei=Q3VnUJWgH4WyhAeEhIHwAg&ved=0CDoQrQQ&bav=on.2,or.r_gc.r_pw.r_qf.&fp=5842132675ef9dd1&biw=1366&bih=653
Pretty sure you'll be able to get that in the states. Found it on Amazon UK here

Faster Wall Charger (Updated with results)

Hello Everyone,
I wanted a faster and better charger for my Nexus 5. After doing some research I came up with the following possibilities:
From Amazon:
http://www.amazon.com/Tech-Armor-Charger-Watts-Black/dp/B00CD0HGDE
http://www.amazon.com/iXCC-Charger-Charging-Samsung-Package/dp/B00FCISG6K
http://www.amazon.com/EZOPower-Charger-Adapter-Smartphone-Cellphone/dp/B00EDU5X6Y
All these chargers have 2 USB ports, which they are great if you need to charge two devices at once. They will charge 2.1A from one port and 1A from the other. My problem with all these is that they are bulky and two of them have ports that come out of the back. It can be difficult to use if you want to plug your charger lets say behind your bed or similar tight places. That is one of the reasons why I don't like the stock Nexus 5 charger as the USB cable comes out of the back and its only 1.2A
From eBay:
http://www.ebay.com/itm/OEM-BlackBe...o-USB-Compatible-Phones-Tablets-/200976069483
This charger is exactly what I'm looking for because its small, the cable comes out of the side, and the output is 1.8A which is greater than the stock Nexus 5 charger. Plus at $3.99 & free shipping for a new charger is not a bad deal. Since this is an OEM Blackberry product the quality is excellent. Cable is around 7ft long.
Bought me two of them, one for the office and one for home.
Will post my results as soon as I receive the charger. Will test how much current the Nexus 5 can pull.
Update with results:
http://forum.xda-developers.com/showpost.php?p=47468074&postcount=22
Update 2nd test:
http://forum.xda-developers.com/showpost.php?p=47501470&postcount=24
.

Won't phones and batteries only pull the number of amps they are designed to pull? I didn't think it mattered how many amps a charger could proveide as long as it has enough?

Evo_Shift said:
Won't phones and batteries only pull the number of amps they are designed to pull? I didn't think it mattered how many amps a charger could proveide as long as it has enough?
Click to expand...
Click to collapse
I had tablets chargers that I would use on my Nexus 4 and the phone would charge a lot faster than the stock charger that came with it. I'll do some testing and will report my conclusion once I receive it.

The Galaxy S4 charger works great and really fast.

Meh, the stock charger is 1.2A so that's what I figure the fastest it will charge.
I had an SGS3 and using my dad's Note 2's 2A charger, I was still only drawing out 1A, which is what the SGS3's charger came with.

The Nexus 5 comes with a 1.2 amp charger. I HIGHLY doubt it's actually capable of charging any faster than that (it'd be a lot of heat for such a small device).

Charging amperage is specified by the device not the charger. Value on a charger is the maximum amperage it is able to produce. This means that Nexus 4 or 5 will not get more than 1.2A even from a 2A charger.

If the phone is designed to charge at 1.2A, it will charge at 1.2A max. HOWEVER, not all chargers are 100% efficient. That means your phone may not charge at a constant 1.2A through the stock charger if it is not 100% efficient. That is why you notice faster charging speeds using a 2A charger.
If you don't believe me, get an app like battery monitor widget and look at the power input when you are charging.
This is what I use: http://www.amazon.com/Anker®-Dual-Port-Charger-Samsung-Motorola/dp/B00B8L36A6
Anker is a very good brand

cgg123321 said:
If the phone is designed to charge at 1.2A, it will charge at 1.2A max. HOWEVER, not all chargers are 100% efficient. That means your phone may not charge at a constant 1.2A through the stock charger if it is not 100% efficient. That is why you notice faster charging speeds using a 2A charger.
If you don't believe me, get an app like battery monitor widget and look at the power input when you are charging.
This is what I use: http://www.amazon.com/Anker®-Dual-Port-Charger-Samsung-Motorola/dp/B00B8L36A6
Anker is a very good brand
Click to expand...
Click to collapse
My Nexus 5 charges quickly with the charger that it came with. It is 1.2A. I purchased a new car charger that is also 1.2A now. It seems to work well.

mobileboost said:
My Nexus 5 charges quickly with the charger that it came with. It is 1.2A. I purchased a new car charger that is also 1.2A now. It seems to work well.
Click to expand...
Click to collapse
I actually just got my nexus 5 today so I can't comment on the included charger. I was talking about my old galaxy note and htc desire. There was a site that reviewed the efficiency of chargers but I forgot the name of the site.

I use my Nexus 7 charger (2A) and it charges way faster than the stock. They are only $15 on amazon too.

My HP chrome book has a charger rated at 3 amps. Charges the phone crazy fast. I remember seeing these threads and how people said it doesn't matter what the output is blah blah blah. It works. I just wonder what effect it has on the battery? I think its supposed to last longer if you charge it slowly correct?

I use nexus 7 charger. Takes around 15 min to fully charge at 70 percent
Sent from my Nexus 5 using XDA Premium 4 mobile app

Everyone is saying "its faster" but nobody has bothered to mention what faster is.
From 15%, I saw 100% charge in just 2 hours with Qi so I think these phones charge fast in general since Qi is only 1 am output.
If we could stick to real #s going forward then this thread would have some value.
First establishing some baselines with stock charger is essential. Also remember only some fuel gauges support actual current measuring and many apps attempt to calculate current by looking at voltage over time.
Sent from my Nexus 5 using xda app-developers app

kepapas said:
I use nexus 7 charger. Takes around 15 min to fully charge at 70 percent
Sent from my Nexus 5 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Thanks...since I left my N5 charger in a hotel (!) I was having trouble finding a replacement 1.2a charger. So gave up that hunt and just got the Nexus 7 charger on Amazon.

sluflyer06 said:
Everyone is saying "its faster" but nobody has bothered to mention what faster is.
From 15%, I saw 100% charge in just 2 hours with Qi so I think these phones charge fast in general since Qi is only 1 am output.
If we could stick to real #s going forward then this thread would have some value.
First establishing some baselines with stock charger is essential. Also remember only some fuel gauges support actual current measuring and many apps attempt to calculate current by looking at voltage over time.
Sent from my Nexus 5 using xda app-developers app
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We don't need no stinkin' science in here!
A lot of people just assume their phone is charging faster because they're using a faster charger. Placebo at work.
Folks, if you want to properly determine whether a charger over 1.2 amps is worthwhile you need to do a proper test and remove all the variables:
1. Put the phone in airplane mode and shut down all apps and services. Best if you do this from a clean factory reset so the tests are on equal footing. Any apps using the phone will draw on the battery and influence the test negatively for that charger.
2. Up to 15 minute charging variances are normal. It's a chemical reaction inside of the battery, it's not going to be that consistent.
3. Make sure to charge from the exact same percentage level.
4. REPEAT THE TEST at least 3 times. If the test shows dramatic outliers, perform extra tests and make sure the test is consistent.
Does that sound like a lot of work? Yeah, but it's the only way you can actually make an assertion that one phone charger is faster than another.

Vincent Law said:
We don't need no stinkin' science in here!
A lot of people just assume their phone is charging faster because they're using a faster charger. Placebo at work.
Folks, if you want to properly determine whether a charger over 1.2 amps is worthwhile you need to do a proper test and remove all the variables:
1. Put the phone in airplane mode and shut down all apps and services. Best if you do this from a clean factory reset so the tests are on equal footing. Any apps using the phone will draw on the battery and influence the test negatively for that charger.
2. Up to 15 minute charging variances are normal. It's a chemical reaction inside of the battery, it's not going to be that consistent.
3. Make sure to charge from the exact same percentage level.
4. REPEAT THE TEST at least 3 times. If the test shows dramatic outliers, perform extra tests and make sure the test is consistent.
Does that sound like a lot of work? Yeah, but it's the only way you can actually make an assertion that one phone charger is faster than another.
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No. This is exactly what I'm talking about. I charge my phone all the time. And the second I used this charger and consistently from then on the phones charges about 1/3 faster. I really don't care what is "supposed" to happen. It just works. I get my charger back on Friday and I will prove it. The battery usage shows a giant spike. Upwards compared to the more gradual spike with the stock charger. My Google edition HTC one used to barely charge while playing games with the stock charger and now it charges as fast as stock when I wasn't even using it.

rican408 said:
No. This is exactly what I'm talking about. I charge my phone all the time. And the second I used this charger and consistently from then on the phones charges about 1/3 faster. I really don't care what is "supposed" to happen. It just works. I get my charger back on Friday and I will prove it. The battery usage shows a giant spike. Upwards compared to the more gradual spike with the stock charger. My Google edition HTC one used to barely charge while playing games with the stock charger and now it charges as fast as stock when I wasn't even using it.
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The HTC One's stock charger was only 1 amp, not 1.2 amps. It was clearly capable of charging faster, this phone not so much.

Vincent Law said:
The HTC One's stock charger was only 1 amp, not 1.2 amps. It was clearly capable of charging faster, this phone not so much.
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I was actually using the 1.2a charger from my nexus 4 as the "stock" charger. For the same reason, I know more is better.

lg g2 charger works really well for me

USB-C chargers with QC3 work fine with the Pixel2XL?

Hi,
I have 2 chargers that I used with my older phone, both are QC3 compatible, USB-C port and 1 of them can deliver 5/9/12 volts.
no matter if I use 1 of them or the charger that came with the pixel2xl I see (in Ampere app) it always charging at around 5V and 1A.
does it mean that any of them is good? is it possible to charge it even faster?
the charging speed is pretty much ok I think.

QC3 will not do anything but charge at standard speeds. This device is power delivery. QC4 will be compatible with power delivery, but good luck finding a QC4 charger.
Sent from my Pixel 2 XL using XDA-Developers Legacy app

Don_Perrignon said:
QC3 will not do anything but charge at standard speeds. This device is power delivery. QC4 will be compatible with power delivery, but good luck finding a QC4 charger.
Sent from my Pixel 2 XL using XDA-Developers Legacy app
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You mean Google sends an old style charger with the phone? Instead of the kind that the phone is designed for?

wtherrell said:
You mean Google sends an old style charger with the phone? Instead of the kind that the phone is designed for?
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No. It comes with a Power Delivery charger, the phone is a Power Delivery device.
QC3 and below will charge at a standard (slower) speed. QC4 is compatible with QC and Power Delivery - but, at this time there is no QC4 chargers, oddly.
Sent from my Pixel 2 XL using XDA-Developers Legacy app

wtherrell said:
You mean Google sends an old style charger with the phone? Instead of the kind that the phone is designed for?
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google use PD standard instead of QC
so if you want fast charging
get your self a PD charger
---------- Post added at 01:38 AM ---------- Previous post was at 01:37 AM ----------
dimiboy said:
Hi,
I have 2 chargers that I used with my older phone, both are QC3 compatible, USB-C port and 1 of them can deliver 5/9/12 volts.
no matter if I use 1 of them or the charger that came with the pixel2xl I see (in Ampere app) it always charging at around 5V and 1A.
does it mean that any of them is good? is it possible to charge it even faster?
the charging speed is pretty much ok I think.
Click to expand...
Click to collapse
pd charger if you want fast charging

The OP said that using the charger that came with the Pixel 2xl still charged no faster than the older ones (5v 1A) or did I misread the post?

wtherrell said:
The OP said that using the charger that came with the Pixel 2xl still charged no faster than the older ones (5v 1A) or did I misread the post?
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He said many other things, too.
I think constantly charging with the screen off helps with the charging speed. It shouldn't, but reading other threads has me thinking this. I also, think his phone is faulty.
He also said he thinks the speed is ok.
Sent from my Pixel 2 XL using XDA-Developers Legacy app

For the heck of it, I tried the OEM charger with the Ampere app, and it was showing basically 5v at 1 amp. Tried the usb A port on my power strip that does 5v at 2.4 amps, and it read the same 5V at 1 amp. The 1 amp port on the power strip gave a reading closer to 4v at 1 amp.
Not sure what the data source is for the app because the OEM charger definitely charges quickly. I have no doubt the OEM is doing 9 volts at 2 amps. Or something definitely higher than 5v at 2.4 amps. I am assuming it is a net figure being measured somewhere not in the line from the port, since it'll also show the discharge when unplugged. So this is not the power coming into the phone.

So as far as I checked, everything is charging well.
The problem is that if you will install few other Ampere measuring programs, some will reveal that they don't have access to the sensor of the phone so the data isn't accurate.
so, we can hope it's ok. sadly I can't find anywhere a physical USB-C Ampere meter to buy for now.

Voicebox said:
For the heck of it, I tried the OEM charger with the Ampere app, and it was showing basically 5v at 1 amp. Tried the usb A port on my power strip that does 5v at 2.4 amps, and it read the same 5V at 1 amp. The 1 amp port on the power strip gave a reading closer to 4v at 1 amp.
Not sure what the data source is for the app because the OEM charger definitely charges quickly. I have no doubt the OEM is doing 9 volts at 2 amps. Or something definitely higher than 5v at 2.4 amps. I am assuming it is a net figure being measured somewhere not in the line from the port, since it'll also show the discharge when unplugged. So this is not the power coming into the phone.
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Nathan k over on Google+ has done some tests with the new pixel 2xl. You can see his results there, and yes, the charge rate absolutely slows down with screen on.

CBMC said:
Nathan k over on Google+ has done some tests with the new pixel 2xl. You can see his results there, and yes, the charge rate absolutely slows down with screen on.
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Yeah, I would assume slower rate with screen on, but would it reduce from 9 volts at 2 amps from the OEM charger, to showing only 5 volts at 1 amp? Mine does seem to slow noticeably, but that'd be a big change. Unless it specifically drops the incoming power down when the screen goes on.
I think someone needs to throw down the $25 to get an in line USB C meter to just measure. I almost did yesterday, but got too busy to read the reviews of the ones available.

Voicebox said:
Yeah, I would assume slower rate with screen on, but would it reduce from 9 volts at 2 amps from the OEM charger, to showing only 5 volts at 1 amp? Mine does seem to slow noticeably, but that'd be a big change. Unless it specifically drops the incoming power down when the screen goes on.
I think someone needs to throw down the $25 to get an in line USB C meter to just measure. I almost did yesterday, but got too busy to read the reviews of the ones available.
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Check out Nathan k. On Google+. He measured wattage from empty to full with screen on. He also did some tests at load.

CBMC said:
Check out Nathan k. On Google+. He measured wattage from empty to full with screen on. He also did some tests at load.
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Yeah, thanks. I'm not on Google + and I tried searching earlier and some usb C groups popped up, and they had so much unrelated stuff I just stopped looking.

does anyone know if using QC3 or say an older Nexus 6p charger really hurts the Pixel 2 XL? I keep hearing X and Y chargers shouldnt be used on the Pixel 2 XL..but does it really matter? is the only downside slower charging? or can you really hurt the battery?

phyl0x said:
does anyone know if using QC3 or say an older Nexus 6p charger really hurts the Pixel 2 XL? I keep hearing X and Y chargers shouldnt be used on the Pixel 2 XL..but does it really matter? is the only downside slower charging? or can you really hurt the battery?
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I have used many different types of chargers with no issue.
Nexus 6
Samsung Note 5
Chromecast
Asus that was used for my old dock stations
Generic USB plug in my desk powerbar (likely 5V 1a standard)
QC3 car charger
PD car charger
Sent from my Pixel 2 XL using Tapatalk