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AC Power Cable Option

Just wondering, I found these:
http://www.amazon.com/exec/obidos/t...t_shr?_encoding=UTF8&m=ATVPDKIKX0DER&v=glance
They are the correct micro USB charging units, but they are designed for Blackberry smartphones...Will these properly and safely charge our HD2's?
I love the folding plug design.

Hello Free Man:
FWIW..I had purchased one of these exact items from amazon. Haven't used it yet but I read the backpanel and the output is 5v @ 700ma. If you look at the backpanel specs for the wall charger shipped with your unit from HTC it'll show 5v @ 1A on the output. So the unit will work but will take slightly longer, I think.
Take Care

Well as long as it is safe to use, mine should be here in a few days. I would think it would simply take 30% longer to do a full charge and I am only really using the unit to charge overnight when on the road in hotels, so that is really not an issue as a full charge only takes a short time.
Anyone else want to step in and comment on the lower rating?

You are correct, this charger will take longer to fully charge the battery.
Just like charging from a PC USB port takes even longer since that only provides 500mA maximum.

It is absolutely safe to use chargers with lower ampere rating, the downside is that you will either get longer charge time it your device won't charge at all. But nothing will burn or explode.

So you are saying my device will charge safely, just take 30% longer? You mentioned something about it not charging at all, why would it not charge?
Will this shorten the batter life or anything to that affect? Thanks!
vangrieg said:
It is absolutely safe to use chargers with lower ampere rating, the downside is that you will either get longer charge time it your device won't charge at all. But nothing will burn or explode.
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Free Man said:
So you are saying my device will charge safely, just take 30% longer? You mentioned something about it not charging at all, why would it not charge?
Will this shorten the batter life or anything to that affect? Thanks!
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It may not charge at all if the device you are charging needs a certain amount of amperage in order to charge the battery.
No, this will not affect the battery life or anything to that affect.

Thanks, I plugged it in and charged it for 3 minutes and it did begin charging from 69 to 80% in that period, so it works fine and is quite fast. This battery charges fast in my experience.

Why do wall chargers take forever to charge battery?

Got it from eBay.
Charges faster in phone...while using!
If battery is around 40% it being be charged overnight.
Anyone else experience this?

could be the amp? maybe below 1 amp? Samsung charger has 2amps om it. check your charger and look for the amp. btw. the lower the amp the better for your battery..

Buy an OEM charger. The Samsung one is $50 from Samsung website but you can get the Asus charger from Google play store for $25. Both are two ampbi believe. Or you can get the 1a for $25 from samsung. Getting OEM directly from an OEM or authorized reseller or a storefront lime Google is key. Getting cheap chargers is gonna bite you in the ass one day or think about it like this. Why keep wasting time buying cheap chargers again and again when you can put up proper money and get quality in one go and have peace of mind for a few years. I even stopped buying chargers from amazon because they're just cheap knockoffs too. Phi hong makes good chargers and power supplies but they are harder to source. Phi hong came with my nexus one andy galaxy nexus OEM Home dock.
Anyways, aside from that part of the reason for slow charging is you probably have an unsafe charger that is not rated what it really is and is made of poor materials. Getting a quality 1a or higher, preferably 2a in this case and your gnote2 should charge @ 1.8a. In other words, you can charge from zero to full in ~2-2.5 hours. Or from partially full to 100% in less than 2 easily.
Sent from my GT-N7100

Unless I am mistaken, OP is referring to battery chargers, not usb chargers. That's how I charge mine, too. I have spare batteries, and they all get charged directly. When my battery is low, I just swap. I hate having my phone attached to a cord, even at night.
Yes, all the battery chargers I've had for every device (including this one) have been lower amp than the usb chargers supplied with the phone. It is especially slow for this huge battery for the Note 2. While it bothers me in concept, it's never actually been an issue for me, so I haven't done anything about it. I don't know if higher amp battery chargers are available, but I don't feel like spending extra money on one.
As far as battery health goes, charging at a lower amperage certainly isn't hurting the battery. If anything, it's actually better for it.

Yes...charging just the battery with wall charger.
@ 40% it will not be charged at 6am when I wake!!!
Are there better wall chargers?

Why do you hate having your phone attached to a Cord overnight. I heard that's fine and do it every night.!
dan_tm said:
Unless I am mistaken, OP is referring to battery chargers, not usb chargers. That's how I charge mine, too. I have spare batteries, and they all get charged directly. When my battery is low, I just swap. I hate having my phone attached to a cord, even at night.
Yes, all the battery chargers I've had for every device (including this one) have been lower amp than the usb chargers supplied with the phone. It is especially slow for this huge battery for the Note 2. While it bothers me in concept, it's never actually been an issue for me, so I haven't done anything about it. I don't know if higher amp battery chargers are available, but I don't feel like spending extra money on one.
As far as battery health goes, charging at a lower amperage certainly isn't hurting the battery. If anything, it's actually better for it.
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rockky said:
Why do you hate having your phone attached to a Cord overnight. I heard that's fine and do it every night.!
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Not for the phone, for me. It just bothers me having a wireless device locked to a wall. There's no reason for it. And I frequently get up in the night for various reasons (kids, work, insomnia, etc), and it bugs me unplugging in the middle of a charge cycle.
Incidentally, a non-removable battery was a deal breaker, and one of the reasons I didn't get a Nexus 4. I got used to never plugging in my last phone, and I don't want to go back. It was torture the first week or two with the N2 before my spare batteries arrived.

The charger should have its output printed on it, I've had a look at the pics on ebay and the first two I found that I could read were 500mA and 350mA, the original charger is 2A or 2000mA. Samsung make there own battery charger http://www.samsung.com/au/consumer/...es/EB-H1J9VNEGSTD?subsubtype=other-multimedia the output is 1.7A so much closer to the original usb charger.
I'd be worried about my back cover getting loose doing what you do. I had three batteries for my old phone, but I did not swap them on a daily basis, just when travelling or away from power for an extended time. I've ordered some wireless chargers so I can have one by my bed and another downstairs. I know they only output 500mA too, but for an overnight charge thats fine for me. I dont think there is any issue with interrupting the charge cycle, the two main enemies of lithium batteries are heat and being totally/almost discharged on a regular basis. Its best to keep them topped up.

scote said:
The charger should have its output printed on it, I've had a look at the pics on ebay and the first two I found that I could read were 500mA and 350mA, the original charger is 2A or 2000mA. Samsung make there own battery charger http://www.samsung.com/au/consumer/...es/EB-H1J9VNEGSTD?subsubtype=other-multimedia the output is 1.7A so much closer to the original usb charger.
I'd be worried about my back cover getting loose doing what you do. I had three batteries for my old phone, but I did not swap them on a daily basis, just when travelling or away from power for an extended time. I've ordered some wireless chargers so I can have one by my bed and another downstairs. I know they only output 500mA too, but for an overnight charge thats fine for me. I dont think there is any issue with interrupting the charge cycle, the two main enemies of lithium batteries are heat and being totally/almost discharged on a regular basis. Its best to keep them topped up.
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It looks like the OEM battery charger is available on ebay for around $15. That's good to know in case mine ever crap out on me. These cheapies that I get tend to.
As far as the back cover getting loose, after 3 months, it is a little bit looser than when it was new. 1.5 years with my G2x didn't loosen it at all, but the build quality on that thing was fantastic. I keep this in a case anyway, so it being a little looser goes unnoticed. If it gets bad, back cover replacements are cheap.

If one of the devs can make the kernel capable of fastcharge, it would not take but half the time to charge. Yank who is working with Faux on his kernel, helped make the kernel fast charge capable.
Sent from my SGH-T889 using xda app-developers app

UnixSlayer said:
If one of the devs can make the kernel capable of fastcharge, it would not take but half the time to charge. Yank who is working with Faux on his kernel, helped make the kernel fast charge capable.
Sent from my SGH-T889 using xda app-developers app
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But what is the point of having it charge fast, when all it is is going to drain faster?
I charge mine overnight with a charger rated at 750mah I believe and it last me a whole day. As oppose to using a 2.1 am charger I have, where the battery percentage would start dropping by the first hour.
Correct me if I am wrong here, but this is what I've notice with my last few phones.

The Perseus kernel with stweaks has the ability to change the charging parameters.
With it overclocked/undervolted I am getting better life than I did on stock.
Not for sure what you mean as it depleting the charge faster on a higher amperage charger. Kind of sounds like you may have had failing batteries, etc.

There seem to be a few misunderstandings here regarding batteries and chargers.
1) The charge rate, when the battery is in the phone, is controlled BY the phone. The charger itself just supplies regulated power to the phone. How much current is put into the battery at any given time is up to the phone, which is why kernels can do things like fast charge, it's controlled by the kernel. Now, the reason the battery charges faster when using the stock charger vs. something lower current or a computer is simple. The phone can detect what it's connected to within some limitations. It sounds like our phone can also sense the incoming voltage levels and back off if the supply becomes unstable.
2) Using the stock 2A charger is "harder" on the battery than a lower current charger. Not true, at least not within any margin of error you will be able to detect without specialized equipment. Lipo batteries are generally built to charge/discharge at 1C. C in this case stands for capacity. So our 3100mah batteries can charge at 3.1Amp and be within safety margin. So the 2Amp charger the phone comes with is perfectly fine for the battery. Without seeing a datasheet for the battery from Samsung, that's a good guess. And again, the phone controls the charge current based on a number of parameters. You could connect the phone to a 5V supply capable of 100Amp and it will still only use what it needs.
3) The percentage readout on the phone screen is a GUESS. Don't pay it too much attention. For this same reason, evaluating 3rd party batteries based on phone runtime etc is not useful. To validate the battery capacity with any accuracy requires a test setup discharging the battery through a known load and measuring how long it takes to get to a cutoff voltage. I've done some of these tests myself on stock and 3rd party batteries. In general, the OEM batteries are always at or above spec, the 3rd party battery manufacturers lie. Often by upward of 20%. Even the high $ batteries. Keep that in mind when shopping if you want extras or extended batteries.
4) Interrupting the charge cycle is bad. Nope. It's fine. On this same line of thought, full cycles ARE bad. Don't do it. Don't think too much about it either though. Just plug it in when convenient. Or set it on the wireless charger if you've installed one. Generally speaking, they actually don't like to be charged to 100% either. Keeping it at 20%-80% is actually best for the longevity of the battery cell itself. In practice, you will probably have a new phone before any of this is actually noticeable.
The OP sounds like they are talking about a stand-alone charger, where the battery is not in the phone. Those will vary wildly in quality and capability, particularly from ebay. They are probably cheap POS devices. Not that that's really a bad thing, just know about it. It's probably a very low charge rate device, perhaps even down to 100ma or so. That would take forever to charge our larger batteries. As for if there is a better one, probably. If Samsung makes one, it will probably charge faster than the phone with the provided charger plug as there would be no load from the phone using power. Of course, it will cost a lot more as well. Look for devices that at least claim they will charge at 2Amp or so. In practice, they will probably be a lot lower, but your chances are improved. Not many people will break out an ammeter and check, after all.

UnixSlayer said:
If one of the devs can make the kernel capable of fastcharge, it would not take but half the time to charge. Yank who is working with Faux on his kernel, helped make the kernel fast charge capable.
Sent from my SGH-T889 using xda app-developers app
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Perseus kernal has fast charging settings.

What ttabbal wrote is mostly correct. But the problem lies within some input voltage protection logic tied to the charger chip of the phone which is extremely (and too much so) sensitive.
rsalan said:
Perseus kernal has fast charging settings.
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Can people stop calling it fast-charge, it's an idiotic term which technically means nothing. While most kernels have some sort of charging speed configuration options, they're all useless in regard to this problem as the current in the end is decided by a different logic. You'll have to disable unstable power detection and that's the only way to make it work and fix the problem, unless you go hunting down high quality cables and chargers.
Personally I also encountered the problem as my stock S3 charger, as many others here have reported, has deteriorated and it would only charge at an effective 300mA. I disabled unstable power detection and now it charges at the full given current limits, without any issues.

rockky said:
Got it from eBay.
Charges faster in phone...while using!
If battery is around 40% it being be charged overnight.
Anyone else experience this?
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Click to collapse
You have to make sure it's "2a" charger capacity. It happened to me once. Go to monoprice.com and search for a universal 2a charger... pretty cheap

Fast charge & USB

Hi everyone, I'm looking for more info about the fast charge function of the Note 4: I can read on the charger that it either provides 5 on 9V. Does this mean that I can supply 9V on the USB port to fast charge my note 4 ? Does anyone know how the charger detects wheher it it should supply 5 or 9V?

botid said:
Hi everyone, I'm looking for more info about the fast charge function of the Note 4: I can read on the charger that it either provides 5 on 9V. Does this mean that I can supply 9V on the USB port to fast charge my note 4 ? Does anyone know how the charger detects wheher it it should supply 5 or 9V?
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Yes, it means that that charger will deliver power at 9 V (at 1.67 A) to the phone.
As for how it decides which voltage/current to use, it'll be as a function of the battery's charge level, temperature, and probably some other factors, but that's getting into some very specific settings for the phone/charger system by that point.

Dan1909 said:
Yes, it means that that charger will deliver power at 9 V (at 1.67 A) to the phone.
As for how it decides which voltage/current to use, it'll be as a function of the battery's charge level, temperature, and probably some other factors, but that's getting into some very specific settings for the phone/charger system by that point.
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thanks for the quick reply! I've got a couple of Dc Converters (buck) and lipo batteries (11.1V) and was wondering how the phone signals the charger it can accept 9V and if I can use my DC step down to feed the phone with9V...
I guess I will have to try

botid said:
thanks for the quick reply! I've got a couple of Dc Converters (buck) and lipo batteries (11.1V) and was wondering how the phone signals the charger it can accept 9V and if I can use my DC step down to feed the phone with9V...
I guess I will have to try
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I guess it requires original charger for that function, probably with kernel modification you can disable that only 9v OEM charger use for QC

Hello guys ! Do you think this fast charging function is alright for the battery ? as far as i know high current may damage the battery .

liberfarb said:
Hello guys ! Do you think this fast charging function is alright for the battery ? as far as i know high current may damage the battery .
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I agree that it might be damaging to the battery (but obviously not extremely damaging). Why else would there be the option to switch off fast charging? I've switched mine off anyway because I have no use for it as my phone charges overnight and makes no difference how quickly it gets to 100%.

ozaghloul said:
I agree that it might be damaging to the battery (but obviously not extremely damaging). Why else would there be the option to switch off fast charging? I've switched mine off anyway because I have no use for it as my phone charges overnight and makes no difference how quickly it gets to 100%.
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Thank you for the quick replay mate , I have switched this feature off as well for the same reason I charge my smartphone during the night

ozaghloul said:
I agree that it might be damaging to the battery (but obviously not extremely damaging). Why else would there be the option to switch off fast charging? I've switched mine off anyway because I have no use for it as my phone charges overnight and makes no difference how quickly it gets to 100%.
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I personally thought the option to disable Fast Charging was Samsungs' way of reminding us, or letting the uninformed know, that it can do it.

The generally accepted rule amongst radio control hobbyists is that provided the battery is well made, it's not the current that'll kill a battery - it's overcharging it (over 4.2V per cell on a LiPo). Provided that the charging circuit is good (and I have no doubt it is of a high quality) we shouldn't see any degradation in battery life when used with the fast charge process.
Others may chime in with more info, but that's how I understand it.

SquidgyB said:
The generally accepted rule amongst radio control hobbyists is that provided the battery is well made, it's not the current that'll kill a battery - it's overcharging it (over 4.2V per cell on a LiPo). Provided that the charging circuit is good (and I have no doubt it is of a high quality) we shouldn't see any degradation in battery life when used with the fast charge process.
Others may chime in with more info, but that's how I understand it.
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l believe the fast charge is safe for the battery as it charges it at 1C (=1hr charge) which is actually not so fast.
Here is my tip: I have an old charger to charge overnight and use the mote 4 charger only for fast charging during the day (I leave it in my bag). I'm actually lookingfor a way to make a fast charging battery bank.
So here is my question again: has anyone tried supplying 9V to the phone ?

best device in charging
its charging up the whole battery in about an hour, i really like that and the battery gives me a full day

So far right now i can talk for about an hour and play games for about an hour and leave it on overnight and all day and still have 82% left. I'm super impressed!

equlizer said:
So far right now i can talk for about an hour and play games for about an hour and leave it on overnight and all day and still have 82% left. I'm super impressed!
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YOAH!!! Thats insane!

I know that the amperage on the charger is huge in its speed.
I used many custom Roms and kernels in the past on other phones with fast charge. I used several chargers and always charged much quicker with higher amperage outputs. Some were as low as 300 MA to as high as 1.2A. This is why the amperage is so high on this phones charger. The voltage is needed to push the charge quicker. Good luck finding high A charger at 9v.
My 1.2A charger i use as backup is much faster then the 500/700ma ones I have but they are all 5v and can't compete with fast charge.
Sent from my *ROOTED* Note 4 SM-N910W8

I'm also looking for a power bank that would be able to charge at
- 5V 2A,
- 5.5V (Galaxy Tab S)
- 9V (Note 4).
- with 2x18650
- able to charge itself fast too;
- charge-through (charging a device while changing itself).
i now have this ENB model, but it does not deliver 2A to Tab S (and charges at 5V not 5.5).
And it charges itself with 1A even from 2A-capable power supply.

Hi all,
I notice something that the note 4 does not charge fast after I installed S-View cover (original one), although an indication appeared that it is using the fast charging function.
I guessed it assume that the cover is open and charge slower. However, if I removed the S-View it charge noticeably faster.
Do you think this a bug in firmware ??
Thank you,

The so-called USB fast chargers query the device to be charged. Devices capable of fast charging at 9V DC have additional circuitry in their USB ports that the charger can detect. If the charger doesn't detect the circuitry, it falls back to 5V DC mode, like any other USB charger. Assuming the fast charger is functioning correctly, it should not over-charge an older phone or tablet that doesn't support fast charging; it will simply take as long as the original "dumb" USB charger did.

[Q] Nexus 6 turbo charger vs regular charger question

Hi, would a regular charger be better to use vs the turbo charger for the longevity of the battery? Would a regular charger work ok with this phone?
Thanks

pred8er said:
Hi, would a regular charger be better to use vs the turbo charger for the longevity of the battery? Would a regular charger work ok with this phone?
Thanks
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With the turbo charger the device gets pretty warm

Hard to say but I don't think the turbo charger would damage the battery since it actually only ships with it. I would be surprised if it is a problem.

The way I understand it is that the turbo charger will step down as the battery reaches a fuller charge.
You can use the turbo charger on older devices without issue as the circuitry will account for this.

joderme said:
The way I understand it is that the turbo charger will step down as the battery reaches a fuller charge.
You can use the turbo charger on older devices without issue as the circuitry will account for this.
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This

I don't think Qualcomm would design a charger that would speed up the life of a battery because that would give them a bad reputation. I've used the quick charger since I got my Nexus until today because now I use my TYLT qi charger. I have noticed no negative effects of using it, and as stated the chip set is what dictates the charging speed. The chip will not let the battery get too hot assuming the chip is working so I would not worry.

Pilz said:
I don't think Qualcomm would design a charger that would speed up the life of a battery because that would give them a bad reputation. I've used the quick charger since I got my Nexus until today because now I use my TYLT qi charger. I have noticed no negative effects of using it, and as stated the chip set is what dictates the charging speed. The chip will not let the battery get too hot assuming the chip is working so I would not worry.
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Also forgot that if the battery gets too hot charging will stop as Pilz mentioned above. I have seen this before on my SGS5 with wireless charging as it can generate a good amount of heat. I would imagine the Nexus 6 is the same.

Okay. A quick lesson on chargers may be in order.
What you'd consider a regular 2A charger, is actually a "Quick Charge 1.0" charger, which charges at 5V @ 2A, for a total of 10W of power. A Quick Charge 2.0 charger, which Motorola calls a "Turbo Charger" charges at 5V, 9V, and/or 12V @ up to 3A each, for a total of 15, 27, of 36W respectively. Thus, in theory, a QC2.0 could charge up to (almost) 75% faster than a QC 1.0 charger. That's where that number that's being touted around comes from. The reality, so far though, is far different.
The Moto charger does actually charge at all three voltages (whereas most QC 2.0 charger only seem to charge at 5V and 9V), but it charges @ 1.6A in 5V mode (8W), 1.6A in 9V mode (14.4W), and 1.2A in 12V mode (14.4W). Thus, in the top two modes, it charges at just under the equivalent of a 3A "normal" (QC 1.0) charger, then drops down to about 80% of a standard 2A charger when the battery gets close to full.
With more power (watts) comes more heat, so yes, the battery does appear to get a lot warmer than with your normal charger. However, it's still well within the "normal" range that your battery was designed to handle. It may feel warm (or even hot) to you, but trust me, your battery is fine. In fact, there are safeguards in place to protect your battery. If you battery ever gets too hot, your phone will shut down and stop charging altogether. Some owners of a Tylt Vu can attest, since that particular charger has a reputation of wireless charging problems that caused the phones' safeguards to kick in. You should know though, that by the time that safeguard even kicks in, the phone will become MUCH too hot to touch. If you THINK that the phone is too hot, then it isn't. Believe me, the blisters on your fingers will let you know when a battery REALLY reaches a dangerous temperature. If you're able to hold onto the phone for more than a few seconds, then the battery is certainly not in any danger.
In a normal QC 2.0 charger, will that small amount of excess heat reduce the life of your battery? Technically, yes, but the same can be said about charging it with that 2A charger, vs. the 500mA USB port on your computer. It may reduce the life by a month or so, and still last more than double the 1 or 2 years that you're likely to own your phone. In short, don't worry about it. Your battery will likely still last MUCH longer than you'll need it.

Thnx for all the input!

jt3 said:
Okay. A quick lesson on chargers may be in order.
What you'd consider a regular 2A charger, is actually a "Quick Charge 1.0" charger, which charges at 5V @ 2A, for a total of 10W of power. A Quick Charge 2.0 charger, which Motorola calls a "Turbo Charger" charges at 5V, 9V, and/or 12V @ up to 3A each, for a total of 15, 27, of 36W respectively. Thus, in theory, a QC2.0 could charge up to (almost) 75% faster than a QC 1.0 charger. That's where that number that's being touted around comes from. The reality, so far though, is far different.
The Moto charger does actually charge at all three voltages (whereas most QC 2.0 charger only seem to charge at 5V and 9V), but it charges @ 1.6A in 5V mode (8W), 1.6A in 9V mode (14.4W), and 1.2A in 12V mode (14.4W). Thus, in the top two modes, it charges at just under the equivalent of a 3A "normal" (QC 1.0) charger, then drops down to about 80% of a standard 2A charger when the battery gets close to full.
With more power (watts) comes more heat, so yes, the battery does appear to get a lot warmer than with your normal charger. However, it's still well within the "normal" range that your battery was designed to handle. It may feel warm (or even hot) to you, but trust me, your battery is fine. In fact, there are safeguards in place to protect your battery. If you battery ever gets too hot, your phone will shut down and stop charging altogether. Some owners of a Tylt Vu can attest, since that particular charger has a reputation of wireless charging problems that caused the phones' safeguards to kick in. You should know though, that by the time that safeguard even kicks in, the phone will become MUCH too hot to touch. If you THINK that the phone is too hot, then it isn't. Believe me, the blisters on your fingers will let you know when a battery REALLY reaches a dangerous temperature. If you're able to hold onto the phone for more than a few seconds, then the battery is certainly not in any danger.
In a normal QC 2.0 charger, will that small amount of excess heat reduce the life of your battery? Technically, yes, but the same can be said about charging it with that 2A charger, vs. the 500mA USB port on your computer. It may reduce the life by a month or so, and still last more than double the 1 or 2 years that you're likely to own your phone. In short, don't worry about it. Your battery will likely still last MUCH longer than you'll need it.
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Very nice, thanks for this :good:

@jt3 Thanks for the explanation. I would think the voltage somehow plays a part in this, right? As you pointed out, if you look at straight watts, our Quickcharger is only putting out 44% more power versus a last gen phone. Also, since our charger supports both 9v and 12v at 14.4W, that further points to the idea that voltage plays a part here. I would assume it affects the efficiency of the charge? Otherwise why not just build this with 5v and 3 or 4 amps?

TheSopranos16 said:
@jt3 Thanks for the explanation. I would think the voltage somehow plays a part in this, right? As you pointed out, if you look at straight watts, our Quickcharger is only putting out 44% more power versus a last gen phone. Also, since our charger supports both 9v and 12v at 14.4W, that further points to the idea that voltage plays a part here. I would assume it affects the efficiency of the charge? Otherwise why not just build this with 5v and 3 or 4 amps?
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Yes and no. The reason for changing the voltage instead of the current has to do with something called Joule Heating, and if you thought my last post was technical and complicated, you just dropped down the rabbit hole.
Think of it like a garden hose. Voltage would be the diameter of the hose. Current would be the rate in which water flowed through the hose. If, say, you wanted to fill your dog's water bowl, and for some insane reason, you want it to take exactly 30 seconds to do so. You could either get a larger diameter hose, and turn down the flow of water, or get a smaller diameter hose and turn up the flow. In the end, the dog's bowl gets filled in the same amount of time. (Electrical Engineers will likely gripe and say that the diameter of the hose is more accurately Resistance, rather than Voltage. Yeah, well... shut up! This is my story! Seriously, I'm being a bit inaccurate, but it makes it easier to picture this way.)
Same thing here. By cranking up the voltage (volts), they can turn down the current (amps) to achieve the same power (watts). In the case of the 12V vs. 9V on the Turbo Charger, it's the same exact power, which doesn't seem to make sense, and furthermore (as you said), why not just keep it 5V and raise current to 3A, since that's also (more or less) the same amount of power? Okay, remember that dog bowl? what happens when you really crank the water flow and point it toward that dog bowl? It splatters, and because of this, a measurable amount of water actually ends up outside of the bowl -- wasted. Same thing here. By cranking up the current, you lose more in the form of heat. By dialing that down (but keeping the power the same, by raising the voltage), you can reduce the heat generation at the same power level.
So... The "tl;dr" of it all is that a 12V charger, pushing (around) 15W of power generates less heat than that 5V, 3A charger would, even though the power is the same. The heat generated isn't huge at these small numbers, but we're talking REALLY confined spaces, with no fans or really any form of ventilation. A few degrees here and there can really make a difference.

Which charger to use with Nexus 6? (no quickcharge)

Which charger to use? (no quickcharge)
I bought a Samsung charger for my upcoming Nexus 6, i don't want to use the quick charger that comes with the phone. I am starting to suspect that this one is also a quick charger, can anyone look at the attached pictures and tell me? Also if it isn't a quick charger i would like to use it for the long run so my second question is would my battery be affected because of what says on the back of the box that i highlighted? In the highlight are also the specs of the charger, can someone clear this up for me?
EDIT: I cannot post pictures on the forum just yet, so here are the specs
10W Samsung travel adapter, Input 100-240VAC 50-60Hz, Output 5.0VDC 2A
Use only with compatible Samsung devices

mohijavata said:
I bought a Samsung charger for my upcoming Nexus 6, i don't want to use the quick charger that comes with the phone. I am starting to suspect that this one is also a quick charger, can anyone look at the attached pictures and tell me? Also if it isn't a quick charger i would like to use it for the long run so my second question is would my battery be affected because of what says on the back of the box that i highlighted? In the highlight are also the specs of the charger, can someone clear this up for me?
EDIT: I cannot post pictures on the forum just yet, so here are the specs
10W Samsung travel adapter, Input 100-240VAC 50-60Hz, Output 5.0VDC 2A
Use only with compatible Samsung devices
Click to expand...
Click to collapse
2 amp will deliver 2 amp, which is what the turbo charger will deliver, so yes it will turbo charge. Why don't you want to turbo charge?

danarama said:
2 amp will deliver 2 amp, which is what the turbo charger will deliver, so yes it will turbo charge. Why don't you want to turbo charge?
Click to expand...
Click to collapse
I want to use the phone for a couple of years and don't want to shorten the battery life and also have the risk of inflating battery and everything that comes with it. What kind of charger should i buy to charge it in some "normal" time? The salesman in Samsung store told me this one charges Note 4, Galaxy S5 - which is why i bought it - the S5 doesn't have the quickcharge tech so i instantly thought it was an ordinary charger. On the other hand, my Galaxy Nexus official charger is rated for 1.0 A which surely isn't strong enough to charge the 6 properly so i am confused with what kind of a charger and with what ratings should i get? Thank you in advance.

mohijavata said:
I want to use the phone for a couple of years and don't want to shorten the battery life and also have the risk of inflating battery and everything that comes with it. What kind of charger should i buy to charge it in some "normal" time? The salesman in Samsung store told me this one charges Note 4, Galaxy S5 - which is why i bought it - the S5 doesn't have the quickcharge tech so i instantly thought it was an ordinary charger. On the other hand, my Galaxy Nexus official charger is rated for 1.0 A which surely isn't strong enough to charge the 6 properly so i am confused with what kind of a charger and with what ratings should i get? Thank you in advance.
Click to expand...
Click to collapse
2amps isn't going to shorten the life below 2 years. Higher amps only shorten life if they are above battery tolerances, which 2 amps is not.
Anyway, you'll want a 1 or 1.2 amp charger for slow charging

danarama said:
2amps isn't going to shorten the life below 2 years. Higher amps only shorten life if they are above battery tolerances, which 2 amps is not.
Anyway, you'll want a 1 or 1.2 amp charger for slow charging
Click to expand...
Click to collapse
Can i use this charger safely with the Nexus 6? After some researching this one is actually quickcharge 1.0 by the specs so i it should not be so "harsh" with the temperature on the phone.

mohijavata said:
Can i use this charger safely with the Nexus 6? After some researching this one is actually quickcharge 1.0 by the specs so i it should not be so "harsh" with the temperature on the phone.
Click to expand...
Click to collapse
Yes.

If I were you, I would use the charger that comes with the Nexus 6. Which is tested by Motorola to work properly. I've had my Nexus 6 since December 2014 and no problems. I charge through my laptop will at work though.

logicrulez said:
If I were you, I would use the charger that comes with the Nexus 6. . .
I charge through my laptop will at work though.
Click to expand...
Click to collapse
He wants slow charging. So charging through laptop / pc will be fine.
Charge cspacity of usb ports is 500 mA (900 mA for USB 3.0), that's good for slow charging.
Also 1-dollar charger from eBay will be fine.

NLBeev said:
He wants slow charging. So charging through laptop / pc will be fine.
Charge cspacity of usb ports is 500 mA (900 mA for USB 3.0), that's good for slow charging.
Also 1-dollar charger from eBay will be fine.
Click to expand...
Click to collapse
He wants it but hasn't got a valid reason to want it. The motorola charger is the best charger to use and it won't shorten his battery life.

danarama said:
He wants it but hasn't got a valid reason to want it. The motorola charger is the best charger to use and it won't shorten his battery life.
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Click to collapse
And slow charging won't lengthen it.;(

NLBeev said:
And slow charging won't lengthen it.;(
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Click to collapse
Nope. So the only thing that will change is his phone will take longer to charge.
That said for me, turbo charge stopped working and I'm very annoyed.
Google have first sent me a new charger which still hasn't arrived. Though I think the issue is the phone. But I wanted to avoid a refurb as long as possible. Can't live without turbo charge now.

I have this charger, http://www.walmart.com/ip/Belkin-F8J031TT04-BLK-Micro-Wall-car-Chrg-Kit-2.1a-10w-W-4ft/40457559, but i got just the charger for $20. It most definitely doesnt turbo charge, it takes atleast 2 hours, so id say its a "normal" charge for this phone and i think its better than the turbo charger, because it doesnt get hot and its still decently fast

danarama said:
. . .
Google have first sent me a new charger which still hasn't arrived. Though I think the issue is the phone. But I wanted to avoid a refurb as long as possible. Can't live without turbo charge now.
Click to expand...
Click to collapse
The turbo output is only supplied on turbo enabled devices. So there is something wrong with switching to turbo modes 9 V and/or 12 V
I am curious what is the cause of this issue.
Did you try an 'charge app' like Ultra Fast Charger.?

NLBeev said:
The turbo output is only supplied on turbo enabled devices. So there is something wrong with switching to turbo modes 9 V and/or 12 V
I am curious what is the cause of this issue.
Did you try an 'charge app' like Ultra Fast Charger.?
Click to expand...
Click to collapse
I think its a usb port issue myself.
I don't know what a charge app is. I am monitoring my input though. I know the issue is not software as it just stopped working one day last weekend with no software changes.
Actually,.could even be the battery as.my wireless charger is very slow now too.

danarama said:
I think its a usb port issue myself.
I don't know what a charge app is. I am monitoring my input though. I know the issue is not software as it just stopped working one day last weekend with no software changes.
Actually,.could even be the battery as.my wireless charger is very slow now too.
Click to expand...
Click to collapse
There are some apps in the play store claiming to boost the battery charge.
When wireless charging is also slow, than it could be indeed the battery.
Maybe a complete discharging ?
BTW
Turbo mode is only active when the battery is less than 75% charged.

NLBeev said:
There are some apps in the play store claiming to boost the battery charge.
When wireless charging is also slow, than it could be indeed the battery.
Maybe a complete discharging ?
BTW
Turbo mode is only active when the battery is less than 75% charged.
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Click to collapse
I don't believe they can but I'm not.going.to try anyway.

You should use a 5 Volt 2 Amp charger, those chargers are the one's that most phones use. Most new phones are using Qualcomm's Quick Charge 2.0, which you should use but if you are not comftorable then the 5 Volt 2 Amp will work good.

Errr, QuickCharge will in fact degrade a battery faster, it's still used because most phones only have a 2 year lifespan.
A non QuickCharger will also make it run less hot while charging and also be less likely to cause cell expansion. Not sure why there's so many people denying this.
EDIT:
Including some sources:
http://www.sciencedaily.com/releases/2015/04/150414094117.htm
Please don't tell him that it won't degrade his battery when it definitely will. It's basic chemistry.
To OP:
Any regular non Quick USB charger of reputable make will do fine. I use an older HTC charger. Don't get a super cheap offbrand one as it probably has fluctuating voltage which will also damage your battery.

seshmaru said:
Errr, QuickCharge will in fact degrade a battery faster, it's still used because most phones only have a 2 year lifespan.
A non QuickCharger will also make it run less hot while charging and also be less likely to cause cell expansion. Not sure why there's so many people denying this.
EDIT:
Including some sources:
http://www.sciencedaily.com/releases/2015/04/150414094117.htm
Please don't tell him that it won't degrade his battery when it definitely will. It's basic chemistry.
To OP:
Any regular non Quick USB charger of reputable make will do fine. I use an older HTC charger. Don't get a super cheap offbrand one as it probably has fluctuating voltage which will also damage your battery.
Click to expand...
Click to collapse
Actually you've misread (or not read fully). No one disputes the science. That article isn't accurate. All it says is "too quickly" and if you read what I have said, is that the turbo charger is within acceptable tolerances. I.E. It is not "too quickly"

danarama said:
Actually you've misread (or not read fully). No one disputes the science. That article isn't accurate. All it says is "too quickly" and if you read what I have said, is that the turbo charger is within acceptable tolerances. I.E. It is not "too quickly"
Click to expand...
Click to collapse
I think you're not understanding the basic chemistry. More heat = more degradation of the Li-ion battery, regardless of tolerances. A lower power charge will always degrade the battery slower. This isn't about tolerances.