is it good idea to charge my htc one with an samsung 2A charger rather than the 1A ? iss harmful for the battery ? whats the cons and pros
Should be fine; the phone won't take more than 1A. It might only take 0.5A if the data pins aren't shorted.
khaledmhawesh said:
is it good idea to charge my htc one with an samsung 2A charger rather than the 1A ? iss harmful for the battery ? whats the cons and pros
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Click to collapse
try searching (sorry not kidding), but there is a thread here in Q&A with similar question, and some very experienced electrical engineer & phone repair dude gave a very long description.
if i remember correctly, the phone won't use anything more than it needs, so going over 1A is OK, the phone will only use the 1A
on the other hand using lower level charges, will over the long term damage the battery.
i'm no expert in this, go searching for it, it was a quite interesting post. (sorry, i didnt bookmark it, if i happen to bump into it, i'll let you know)
Yup you are correct. I know i have answered it a few times in other posts. heck maybe im the phone repair dude your speaking of.. Or not.. LOL
Basically the phones Kernel will not allow the unit to over charge. There is hardware (that talks to the software) that limits the maximum amount of input current. That has been set by HTC at around 1A. So if you hook up a 2A charger your fine as the device will only draw 1A max.
I my self ran across many blackberry playbook tablet chargers dirt cheap and have them at work and home. They work great for charging everything from tiny Bluetooth devices to full blown tablets.
HTC sold us devices with a non removable battery. So they decided to not allow us to charge it to fast to reduce the heat and maximize battery life.
Remember the two most damaging thing to Li-Ion is heat and extreme low voltage.
IAmSixNine said:
Yup you are correct. I know i have answered it a few times in other posts. heck maybe im the phone repair dude your speaking of.. Or not.. LOL
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Sorry, no disrespect was intended , it was a very long post with very technical info, but very interesting and informative.
thank you so much that was really tons of new and helpfull information thx again
nkk71 said:
Sorry, no disrespect was intended , it was a very long post with very technical info, but very interesting and informative.
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Click to collapse
NO worries. No disrespect taken. Im glad the info was read and well received.
Related
I've got a contact with the owner of a company who builds custom battery chargers, currently they develop chargers for marine applications (on-board ships, subs, ect.)
if we R&Ded a charger for our phones.... perhaps even built it into a cradle... would anyone be interested?
Who's paying for the R&D and what is the MOQ?
crisisinthecity said:
Who's paying for the R&D and what is the MOQ?
Click to expand...
Click to collapse
it's my father's company. thought started out as mainly designing a better charger for myself... but depending on the results & interest, we might produce a few more.
company name is Quality Marine (www.qualitymarinechargers.com)
current model we're looking at is the HD2 (since that's the phone I got) but again... depending on results & interest, we might expand to other models.
first thing we would need to do is see the condition of the battery after a standard charge... see the limits of the battery, and a few other factors. Potentials would be better battery life (not how long a charge lasts... but lifetime of the battery) faster charge times, and potentially other factors... (as we haven't done any testing with the battery yet it's hard to say)
anyways... that's where we are at currently
Charger
I would definitely be interested.
jfu2364 said:
I would definitely be interested.
Click to expand...
Click to collapse
Check out the one at Obostore... Cradle plus extra battery charger in one. I picked one up and it's great.
Already have it.... if you look, the output voltage on the charger is different then the stock HD2 charger (it's lower)
it's possible with the internal circuitry it could be a "trickle charger".... but I doubt it.
Also... i'm not so sure I like how the phone sits in the cradle... it feels to put the majority of the weight on the microUSB port and not on the cradle.
it's an ok cradle for the price ($20 if I recall?) but I think it could be done better.
Ryan79 said:
Already have it.... if you look, the output voltage on the charger is different then the stock HD2 charger (it's lower)
it's possible with the internal circuitry it could be a "trickle charger".... but I doubt it.
Also... i'm not so sure I like how the phone sits in the cradle... it feels to put the majority of the weight on the microUSB port and not on the cradle.
it's an ok cradle for the price ($20 if I recall?) but I think it could be done better.
Click to expand...
Click to collapse
I agree... It could be better for sure... I wish it was angled so that the phone would rest on the back of the phone and so it's not sitting straight up... The question is, is it even worth it since this is a WinMO6.5 phone? Tmobile could stock selling HD2's when the Winmo7 phones start coming in.
crisisinthecity said:
I agree... It could be better for sure... I wish it was angled so that the phone would rest on the back of the phone and so it's not sitting straight up... The question is, is it even worth it since this is a WinMO6.5 phone? Tmobile could stock selling HD2's when the Winmo7 phones start coming in.
Click to expand...
Click to collapse
don't know about you... but I'm not going to drop my HD2 for something else for at least 2 years, when I'm due for an upgrade again.... Don't really feel like paying for the same phone again
And... if I've learned anything regarding MS products, you should always wait till after the first SP before you use their new stuff haha
Ryan79 said:
don't know about you... but I'm not going to drop my HD2 for something else for at least 2 years, when I'm due for an upgrade again.... Don't really feel like paying for the same phone again
And... if I've learned anything regarding MS products, you should always wait till after the first SP before you use their new stuff haha
Click to expand...
Click to collapse
True. I'm just thinking about this dude throwing down a TON of cash to make the MOQ on something like this and being stuck with them because the demand isn't huge... Seems risky from a $$$ standpoint.
crisisinthecity said:
True. I'm just thinking about this dude throwing down a TON of cash to make the MOQ on something like this and being stuck with them because the demand isn't huge... Seems risky from a $$$ standpoint.
Click to expand...
Click to collapse
TBH, I don't think the MOQ will really be that high.... we're only talking about a 3.7V battery after all
the concept & design will be mine... as the project will still start with making something better for my phone and as I said... depending on how it turns out, we could make more depending on results & interest.
The stock USB charger for the HD2 is already very good. I use it to charge all of my USB devices from Garmin GPS to HD2 and other things
Ryan79 said:
it's my father's company. thought started out as mainly designing a better charger for myself... but depending on the results & interest, we might produce a few more.
company name is Quality Marine (www.qualitymarinechargers.com)
current model we're looking at is the HD2 (since that's the phone I got) but again... depending on results & interest, we might expand to other models.
first thing we would need to do is see the condition of the battery after a standard charge... see the limits of the battery, and a few other factors. Potentials would be better battery life (not how long a charge lasts... but lifetime of the battery) faster charge times, and potentially other factors... (as we haven't done any testing with the battery yet it's hard to say)
anyways... that's where we are at currently
Click to expand...
Click to collapse
Did you ever make that better charger?
First off i am not a noob and yes i have googled for the past three days to find out if what i want is available. the reason of this post is that so far as i can see, i am not able to get one to India (where i live). This is what i want or something similar:
http://gorillagadgets.com/dual-wall-charger-for-samsung-galaxy-note-2.html
this is a wall charger (and i dont mean the ones that come with the phone). the link above is for charging two batteries at one go. i am ok with getting a device that charges even one battery. i have looked high and far and though there are several options like the hyperion and anker (which come with the external chargers) they are not shippable to India, which is the crux of my problem. Hope to find some light here...help...please?
[email protected]
capaxdoli said:
First off i am not a noob and yes i have googled for the past three days to find out if what i want is available. the reason of this post is that so far as i can see, i am not able to get one to India (where i live). This is what i want or something similar:
http://gorillagadgets.com/dual-wall-charger-for-samsung-galaxy-note-2.html
this is a wall charger (and i dont mean the ones that come with the phone). the link above is for charging two batteries at one go. i am ok with getting a device that charges even one battery. i have looked high and far and though there are several options like the hyperion and anker (which come with the external chargers) they are not shippable to India, which is the crux of my problem. Hope to find some light here...help...please?
[email protected]
Click to expand...
Click to collapse
wow! 79 views and no reply yet!! it is this too basic a question to merit an answer or is it that none here knows the answer
Your best bet us gonna be to look to other countries other than the US. I would contact samsung korea and see what they can do for you. For some reason my country doesnt like to ship priducts overseas one piece at a time. Lol
Sent from my large and in charge GN2 using Forum Runner
original docking station
i dun think they come with the wall adapter though.
the purpose of an extra battery is to take it out with the wall charger so that i can leave the battery and the wall charger at the power outlet itself. However, though your docking station is good, it would not serve the purpose cause i would have to then take quite a few extra things...the dock itself, the charging cable etc etc thus occupying more space...eagerly looking for more replies and thanks for the ones that have taken the trouble to reply
My dock has been charging my phone perfectly for weeks, the other day I came in and plopped the phone on the dock and nothing.
I checked the pogo pins (of the dock) with a multimeter, they are working. I've tried different power sources for the dock as well (wall adapter, pc, other cables).
I've checked to make sure the pins are making contact with the phone, good solid contact.
I haven't changed anything on the phone recently, any suggestions?
The phone charges fine through USB.
[ANSWERED]
since i apparently posted this on the apple forums instead of xda, all the replies were "shoulda bought apple products"
so anyone having this problem, i solved it by reinstalling a nand backup. apparently it was a software issue. hopefully this saves you from the apple fanboys.
do you have original sony cradle? i had chinese replica and it did not work all times.
glukasil said:
do you have original sony cradle? i had chinese replica and it did not work all times.
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Click to collapse
No, I was too impatient for it and got the goosewhite dock, besides I like the looks of it better tbh. The dock is putting out power, I don't get why it's not charging. its not a complex system at all.
Get the Sony one if you don't want the same issue occurring.
Sent from my C6603 using xda premium
why would changing the dock have anything to do with the problem? when voltage is applied to the pogo pins, the phone does not charge. how would changing the dock i use make a difference in that at all?
i would understand if the pogo pins were putting out less power or no power, but they put in exactly the amount of power going into the dock, they make good solid contact, i've check continuity and its making a solid connection...
Then take the dock apart and see if anything got loose
Sent from my C6603 using xda premium
Rajinn said:
why would changing the dock have anything to do with the problem?
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Click to collapse
Because the one you've bought is rubbish!
I brought this as an alternative to the Sony DK26 because I was sick of opening the flap everytime I wanted to charge my phone. It does fit the Xperia Z and looks nice enough. It also activates the dock mode and the Xperia's smart connect function. This is why I gave it 1 star. HOWEVER, it outputs at 500mA as opposed to the 1800mA delivered by the Sony dock. This means it charges your phone incredibly slowly. I had my phone on the dock charging for 11 Hours and it managed to deliver a battery charge of just 51% which is ridiculous compared to the Sony charger which delivers a 100% charge in 2 hours.
Click to expand...
Click to collapse
- Review
XperienceD said:
Because the one you've bought is rubbish!
- Review
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+1
I do not get why would anyone go for something cheaper and unreliable. Its like those iPhone users buying cheap non original cables to charge their iPhones, ended up causing the phone to blow up or messed up and blames it on Apple.
and yes you are the owner of the phone and you have the right to buy whatever 3rd party equipment for your phone, but dont expect it to work 100%.
Doesnt make sense if you ask me sir.
It is really hard to determine the main cause of this matter. It could be your phone: hardware or software (i doubt it is this one), or the 3rd party dock.
You tell me which one to throw and buy a new one.
Already told you why I bought it. There's nothing but stupidity in that review as docks do not put out power, they transfer it, the power supply puts out power. As for the amperage, it puts out what you put in. it will do [email protected] if you are stupid enough to put that through it... Assuming the wires don't burn. if you are going to base your assumptions on a review, at least choose one from someone knowledgeable. also, my dock never took 11 hours to charge, not that i ever bothered timing it but it sure as hell wasnt more than 4 hours (and thats giving an a good bit of a safety margin), i'd guess 2 hours 0-100 if i had to.
What I'm telling you is that the phone is not accepting the charge, not that the dock is messed up but the phone. And I wanted to know if anyone had similar issues or suggestions.
I'm glad you have insight on the matter and an opinion, however you are not trying to answer the question. I've already informed you the dock is intact and making a connection. I've checked the voltage of the xperia official charger at the cable at its end: 4v dc, the dock when hooked to that charger is 4v dc tested at the pins. I can put a larger amount through it, and any number of amps. A pogo dock is a very simple device, official or otherwise, the difference is mainly in price and design. The diy thread is a perfect example of that.
@LitoNi
I took it apart, nothing is loose. thanks
Rajinn said:
I'm glad you have insight on the matter and an opinion, however you are not trying to answer the question.
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Click to collapse
It's been answered, you've not bought an official product, that's the problem! Buy cheap unofficial batteries, expect issues, buy cheap replica SD Cards, expect issues, buy cheap unofficial chargers, expect issues, and looks like you can cheap docs to that list too.
XperienceD, please continue answering me with your infinite wisdom you learned from the internet. obviously you know everything about electronics.
btw fixed it, reinstalled my nand backup. software problem ftl.
didnt know this was an apple forum.
Rajinn said:
XperienceD, please continue answering me with your infinite wisdom you learned from the internet. obviously you know everything about electronics.
btw fixed it, reinstalled my nand backup. software problem ftl.
didnt know this was an apple forum.
Click to expand...
Click to collapse
Have same dock and same issue sometimes it doesn't want to charge but I just simply put it out and in and it works after reinserting.
[email protected]
Rajinn said:
XperienceD, please continue answering me with your infinite wisdom you learned from the internet. obviously you know everything about electronics.
Click to expand...
Click to collapse
I'm sharing what some of us have learned here, cheap non official products give issues, accept it or don't.
From me to you.
Hello.
With Current Widget I measured voltage during charging... In 100% it is over 4.35V what is, I think overcharged, because Li-po or Li-ion have max voltage 4.2V per cell. I have rooted phone, but stock ROM and stock kernel. Can rooted firmware change charge specs. or this is way how SONY damaging their batteries so people have to buy every year/two new phone or new battery?
Thanks for answers.
It's 0.15V of difference, it do not hurts or anything. Sony do not plan to ruin your phone. You are just paranoid on Stock Rom...LOL...
I'm working with Li-po batteries in RC planes and I can tell you, that 0.15V overcharged can significantly decrease life of your battery. But it is easy way how to increase capacity of battery, but it is very bad way.
So, those limits are controlled by Kernel, yes?? And when I flashed different FW to root my phone, it didn't changed kernel, so I probably has stock kernel?? Thats the main question for me, because with previous experiences I rather stay at stock kernel and stock ROM before flashing anything custom.
Peppyk said:
I'm working with Li-po batteries in RC planes and I can tell you, that 0.15V overcharged can significantly decrease life of your battery. But it is easy way how to increase capacity of battery, but it is very bad way.
Click to expand...
Click to collapse
Ok, also you should know that the test where you get from that 0.15V can be non Right.
Peppyk said:
So, those limits are controlled by Kernel, yes??
Click to expand...
Click to collapse
Don't know.
Peppyk said:
And when I flashed different FW to root my phone, it didn't changed kernel, so I probably has stock kernel??
Click to expand...
Click to collapse
Yes.
Peppyk said:
Thats the main question for me, because with previous experiences I rather stay at stock kernel and stock ROM before flashing anything custom.
Click to expand...
Click to collapse
You can stay on Stock Rom and flash a Custom Kernel, for that you have to Unlock Your Bootloader, and play with the settings or anything to undervolt the charging, but I think is not that simple.
On more than one occasion I've seen you post and give horrible information, in most cases, very wrong because you don't know any better. If you don't know something, DON'T COMMENT ON IT.
0.15V is a big difference when it comes to batteries as small as ours. In a car battery, sure, 0.15V isn't that big of a deal, it's less than 0.01% of a difference, something that can naturally occur with impurities in the lead/acid components, magnetic shift or hitting a speed bump too fast. However, on a battery the size that's in our phones? That's a 3% difference. 3% variance is MASSIVE in relative sizes.
I'm not saying don't help anyone, but don't fake answers in hopes someone clicks your thanks button.
On topic:
In the past, have you flashed a 3rd party kernel at any time, for fun or testing, or for daily driver use? (Even if you're stock now)
How are you plugging the device in - USB port on a computer? USB port on the side of a surge protector? If it's a computer port, is it USB 2 or 3?
Are you using the stock charging block and stock cable that came with the phone? A 3rd party solution like Belkin, etc.?
If you have access to one, plug into a car cigarette lighter, either Sony or 3rd party, do you see a change in the overcharge values? What about a magnetic charging cable?
Have you opened up the phone and tinkered with anything?
Just going out on a limb here but have you checked the app is actually accurate!!
Peppyk said:
Hello.
With Current Widget I measured voltage during charging... In 100% it is over 4.35V what is, I think overcharged, because Li-po or Li-ion have max voltage 4.2V per cell. I have rooted phone, but stock ROM and stock kernel. Can rooted firmware change charge specs. or this is way how SONY damaging their batteries so people have to buy every year/two new phone or new battery?
Thanks for answers.
Click to expand...
Click to collapse
The only way you're going to be sure if that voltage is accurate is if you use a multi meter, apps only read what the phone reads and outputs, which isn't always accurate, try getting CPUZ HW monitor for your computer and check your 12V rail, you'll find that it's nowhere near accurate whereas other apps will give an accurate reading, with this being the case there is no way of knowing which one is accurate and which one isn't, a multi meter is the only way. But in all fairness you're probably going to be using your phone for around 2 years so with that in mind does it really matter?
dladz said:
The only way you're going to be sure if that voltage is accurate is if you use a multi meter, apps only read what the phone reads and outputs, which isn't always accurate, try getting CPUZ HW monitor for your computer and check your 12V rail, you'll find that it's nowhere near accurate whereas other apps will give an accurate reading, with this being the case there is no way of knowing which one is accurate and which one isn't, a multi meter is the only way. But in all fairness you're probably going to be using your phone for around 2 years so with that in mind does it really matter?
Click to expand...
Click to collapse
Thank you.
eclyptos said:
Thank you.
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Click to collapse
Lol you are most welcome sir
Wiltron said:
On more than one occasion I've seen you post and give horrible information, in most cases, very wrong because you don't know any better. If you don't know something, DON'T COMMENT ON IT.
0.15V is a big difference when it comes to batteries as small as ours. In a car battery, sure, 0.15V isn't that big of a deal, it's less than 0.01% of a difference, something that can naturally occur with impurities in the lead/acid components, magnetic shift or hitting a speed bump too fast. However, on a battery the size that's in our phones? That's a 3% difference. 3% variance is MASSIVE in relative sizes.
I'm not saying don't help anyone, but don't fake answers in hopes someone clicks your thanks button.
Click to expand...
Click to collapse
Take it easy dude, on more than one occasion i've seen him give perfect advice and to keep things real i've seen mods and elite developers make bad decisions and give bad advice out because they simply thought they knew, give him a break eh! Theres ways of saying things to people if you have a problem, like not doing it publicly, if you voice your concerns properly then no harm no foul, personally if you'd have just said that to me i'd be annoyed.
Just a heads up.
And as i've already said about the voltage offsets which have been talked about, in all fairness it's a negligent difference and won't matter in the overall scheme of things.
Hi
Is using a 2A charger harmful or bad for my phone or its battery ?
if not what kind or which brand of charger you recommend ?
Sajijun said:
Hi
Is using a 2A charger harmful or bad for my phone or its battery ?
Click to expand...
Click to collapse
A 2 Amp charger mean its capable of giving max 2A to a load, the phone only needs 1A so will only use 1A even on a 2A charger
if not what kind or which brand of charger you recommend ?
Click to expand...
Click to collapse
Original charger, always
But i have charged my phone with a samsung 2A charger a few times , and the charge speed was near twice , so the phone does not use just 1A
Sajijun said:
But i have charged my phone with a samsung 2A charger a few times , and the charge speed was near twice , so the phone does not use just 1A
Click to expand...
Click to collapse
your ElementalX kernel allows Fast charging on the HTC One is why
Sajijun said:
But i have charged my phone with a samsung 2A charger a few times , and the charge speed was near twice , so the phone does not use just 1A
Click to expand...
Click to collapse
Hey, which one is it? I would like to know =)
Model name or sth, should be written on the charger =)
uZzY94 said:
Hey, which one is it? I would like to know =)
Model name or sth, should be written on the charger =)
Click to expand...
Click to collapse
It was for my friend`s Galaxy Note 3 , he does not have the phone any more but I will find the charger and pm you for the model
The phone can handle it but the 1a is the suggested and anything more can damage the hardware. I have a rapid charger that will charge my battery to full in about 30 min from 0. It works on the stock kernel so it is not a custom kernel option. And the fast charge is a pc USB setting if you read the discripition.
zelendel said:
The phone can handle it but the 1a is the suggested and anything more can damage the hardware. I have a rapid charger that will charge my battery to full in about 30 min from 0. It works on the stock kernel so it is not a custom kernel option. And the fast charge is a pc USB setting if you read the discripition.
Click to expand...
Click to collapse
Really? I've always heard that the phone knows only to pull 1A from the available amperage. I've always heard that using something less than 1a can damage the cord and possibly the charger itself.
Also: Using fast charge can seriously degrade your battery over time. Better to only use it when in a pinch.
MarkBell said:
Really? I've always heard that the phone knows only to pull 1A from the available amperage. I've always heard that using something less than 1a can damage the cord and possibly the charger itself.
Also: Using fast charge can seriously degrade your battery over time. Better to only use it when in a pinch.
Click to expand...
Click to collapse
That's why I said it can damage the device. Mine is a stand alone charger so no damage to the cord.
I only use it when I really need to. Like when I have kill the battery as well as the Mophie pack and am in the middle of nowhere and need to make a fast call.
zelendel said:
That's why I said it can damage the device. Mine is a stand alone charger so no damage to the cord.
I only use it when I really need to. Like when I have kill the battery as well as the Mophie pack and am in the middle of nowhere and need to make a fast call.
Click to expand...
Click to collapse
I see what you are saying. I read it differently earlier for some reason. Actually: I know the reason. I've been severely sleep deprived the past several months and have been experiencing sleep paralysis the last several months two or three times per week. Thank God I'm getting a sleep study done soon! My level of alertness is way down from what it used to be... Sorry to get off topic with that stuff, but I felt the need to explain.
clsA said:
your ElementalX kernel allows Fast charging on the HTC One is why
Click to expand...
Click to collapse
But i was using the default kernel that time :|
zelendel said:
The phone can handle it but the 1a is the suggested and anything more can damage the hardware. I have a rapid charger that will charge my battery to full in about 30 min from 0. It works on the stock kernel so it is not a custom kernel option. And the fast charge is a pc USB setting if you read the discripition.
Click to expand...
Click to collapse
Will this only damage the battery or more than that ?
Yeah it's not good for battery life. If you want to get the most out of the battery I wouldn't do it
Sajijun said:
Will this only damage the battery or more than that ?
Click to expand...
Click to collapse
While I would tend to think HTC would be smarter then to skimp on the hardware. I will error on then side of caution and say no. You "could" mess up the port and the board.
My Htc one M7 is charging in about 3-4 hours, from 0% to 100% with original charger and cable, it's ok?
shukayru1 said:
My Htc one M7 is charging in about 3-4 hours, from 0% to 100% with original charger and cable, it's ok?
Click to expand...
Click to collapse
Yes , it should be ok with a 1A standard charger
Sajijun said:
Yes , it should be ok with a 1A standard charger
Click to expand...
Click to collapse
it's a problem if i will use a 2a charger?
shukayru1 said:
it's a problem if i will use a 2a charger?
Click to expand...
Click to collapse
You are asking a question that this thread is about , so read the posts from the begining and you will get your answer my friend
clsA said:
your ElementalX kernel allows Fast charging on the HTC One is why
Click to expand...
Click to collapse
Wrong So Wrong
Fact with stock kernel htc one m7 charges nearly 20 mins quicker
there are pro's and cons to this unless used at the right time in the right situation
sick of people saying it will harm it or that it is there to use only 1a
first of all the stock charger allows 500ma of charging and 500ma for the phones consumption whilst charging
when turned off it should only charge at 700ma
a flaw that was left on purpose by htc for monetary gain
holding fast charge and even full charge capabilities back widens the gap between the m7 and the m8
making people want to buy the m8 charger or better the m8
here's why and how they hold it back on it's full speed charging with !!!!!!!the stock HTC charger
Here is the explanation
The best way I have ever heard it put is like this
Where current is water
Imagine a water barrel that is being filled up at a rate of 1 liter an hour
The barrel has a over flow pipe aka battery if this pipe is only wide enough for half a liter an hour and you turn the tap filling the barrel to 10 liter an hour how much is the over flow receiving still half a liter.
So here is the big if and but
If you are using a 2.1a 5.1v ipad charger
Whilst gaming you have the CPU GPU and battery making heat and thus degrading Battery life and performance
If you turn the m7 off or have all apps closed and phone idle then this is far better than gaming with the stock m7 charger
as heat is the NO1. killer for battery depletion
As for comments about voltage of other chargers are irrelevant as the circuit in the phone limits voltage with a simple I/0 circuit if voltage is either under or over pre set parameters it will do nothing as it won't allow any flow of current at all
Unless lots bigger (BANG)
How is the current limited
Self explanatory as the charger states what it is built to supply
Conclusion is simple amps are limited by the charger plug or USB port
Voltage is not limited but safe gaurded by the phone so if your phone registers a charge with a 5.3v plug then it is fine as long as you use it sensibly
Apps are highly unreliable as they are a close prediction at best
And don't correctly include what is used by the phone
Also some current will be being stored all the time in capacitors
Fact the m7 charges quicker with higher ampage application measuring ampage will not be accurate.
The only accurate way is to time it from empty turned off
And blind people who say HTC know best do not understand the workings of any multinational corporation
By holding the fast charge back widens the gap between the m7 and m8 meaning more people will go and buy the m8 fast charger or even better the m8