Develop Bugs

[Q] Battery drain application

Hi!
I'm looking for an application, that quickly kills my battery if it's low, so I can do a full charge to improve battery life.
Something, that I launch, I put my phone on the desk, have a tea meanwhile, and it's drained! Something, that turns on wifi, do some downloading, browsing, video playing, or whatever, and does it automatically without supervision. Does such app exists?

I'll second this, it'd be nice to have an app do this for me and maybe even give us some interesting stats from it?
Sent from my mind using telepathy

why would you want an application to destroy your battery?

Adevem said:
why would you want an application to destroy your battery?
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Apparently if you do a full discharge the battery life will be longer.

Soniboy84 said:
Apparently if you do a full discharge the battery life will be longer.
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not really, you should avoid deep discharges...

Byr0x said:
not really, you should avoid deep discharges...
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+1 If you had been reading around...you would know Lithium Ion batteries are designed to 'maximize' their efficiency within about two weeks of 'top up' charging. Cycle-charging is generally considered a less efficient method of charging. You will need to 'TopUp charge' this means charging as much and as often as possible. If your battery is at 89% for instance and you find yourself near a socket, plug your adapter in and charge it up to 100%. After a few days of doing this you will notice an improvement in the life of your battery when you are not able to charge.

Actually,,,
It is not matter of running your battery down to 0%.
It is ok to run it down till phone does to power on itself.
As you know battery is a single cell Li-Ion @ 3.7v
when it is fully charged it's peak voltage is 4.2v
By the time battery mah is drained down (galaxy s has 1500mah)
battery voltage should be around 3.2~3.4v range. this will depend on condition of the battery.
Battery should never go below 3.2v personally, 3.4v is my cut off.
If your battery voltage goes below 3.2v... it's time for a new battery as this kind of voltage will damage your battery, either it will leak or puff (battery will actually get bloated.
Phone has a voltage cut off so it will not over charge over 4.2v but if it does, it will likely start to smoke and catch fire.
I am sure anyone who is into electric Radio control knows all about these batteries.
Oh btw,,, long time storage voltage should be 3.8v
You'll be asking how do I know what voltage my battery is... I personallly don't know of any apps but GPS Status actually shows the temperature & voltage of your battery.

Soniboy84 said:
I'm looking for an application, that quickly kills my battery if it's low, so I can do a full charge to improve battery life.
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First, take into consideration the comments above regarding deep discharge of your battery...but, to answer your question, there's an app in the market place called 'Battery Refresh' which attempts to drain your battery quicker.

Well if it's all true above than its a good sign, and thanks for the info! I'm not an expert but in the old times I remember batteries had to discharged completely, maybe even if it's just a few times. Now somebody can also tell me why my battery is discharging when it's plugged in the socket with original charger? All I do is using the internet, and has. nimbuzz and a live wallpaper on. :S

You could probably enable the GPS/BT/WIFI ( connected to a router ) and run the interactive mode on Neocore benchmark.. that should enable most of the hardware components on the phone and stress the GPU/CPU.. probably would see a 25% battery drain for every 35-40mins.

I don't know what has changed with the batteries but as far as I know...
it is good to discharge new batteries 3~4 times down until phone does not power on.
Like I have said... it's about the voltage of the battery, not whether battery has any juice left in it or not.
These batteries have a protective circuitry so that it will not charge over 4.2v,
also as for discharge it is usually down to 3v but usually with a charger/discharger units that can control mah/volts/amps. With typical usage from the phone, it'll likely be discharged down to about 3.2`3.4v. Which is very safe.
You can do whatever you feel but I personally do this to every batteries I have for phone and every batteries I use with my radio controled cars.
For my RC cars, I have about 6 batteries ranging from 1cell to 3cell LiPo packs.
Each cell is 3.7volts.
But you don't have to force discharge and hurry the process.
Just use the phone normally and let it run down to nothing... than recharge to full peak.
Than again, choice is yours.

I'm looking for the same kind of applications. It's very useful for recalibrating your battery. Wipe the battery history then do a full cycle.
Sent from my GT-I9000 using XDA App

The old saying in RC Helicopters was that the difference between discharging 50% and 100% was the difference between getting 500 uses and 5 uses.
You should certainly avoid ever fully dischaging any lithium based battery.
Older nickel batteries (Ni-cd, Ni-MH) required full dischage cycles to get rid of memory the the metals pertained, lithium-ion and lithium-ion-polymer not only do not require this; but doing so will damage them.
And yes, the older ipods came with Nimh cells and they did reccomended full discharge cycles.
Im pretty sure the idea was to try not to let the voltage get below 3.5v/cell and never below 3.3. Dead flat is 3 or 2.85 which is when the battery simply cant produce any real current. The phone should have circuitry though to not let the voltage get above 4.25 or below ~3.5.. If the low battery warning comes on, set the brightness to dim, and stop any activities (unless its a phone call, its not THAT important but if youre playing games or watching a movie...) until yo can get to a charger.
By the way this being my first post (i meant to ages ago) Ill just mention that my galaxy S came with recovery mode and download mode Enabled, i got it just last month, Virgin network, Australia.

draining the battery fully was for the older battery types, new age batteries are not recommended to be drained fully

Thanks!
One more question:
I'm using my phone as a desktop replacement, because I don't have Internet at the moment. I'm using xda, dolphin browser and listening music. It's plugged into the mains and it's not charging. It says 49%, and stuck there. Is it possible I'm using too much battery?
Sent from my GT-I9000 using XDA App

Ok, this will be my last reply.
Fully draining or not is not the issue.
In RC, most modern electronic speed controllers have a built-in battery cut-off which will cut off power once it reaches certain voltage. Because OVER-draining battery without cut off can damage/kill/ or make it unable to hold voltage.
Also, once the battery voltage reach certain point (still within safe range) you will notice the motor being powered slow down. This would also be a recommended time to stop.
Cellular phones have built in safe cut off aswell. As I have said I have measured my battery after being full drained, voltage was around 3.55v or so. Which is very normal considering voltage of the battery is 3.7v only with peak charged voltage of 4.2.
Now, Someone mentioned that fully draining your battery repeatedly will dramatically reduce battery life.
Reducing life of the battery has more to do with the amount of AMP used to charge the battery. Faster charging is usually reduce battery life dramatically.
And without hobby grade chargers, you won't be able to control this charge rate.
Slow charge is better but charging at 1C rating is the normal. But charging at 1C means regardless of batteries mah rating, battery can be charged in about 60 minutes. As we all know, our phone batteries doesn't charge from zero to full in 60minutes, right? just like most of the portable devices it takes nearly 3~4hours to fully recharge. Last 20% usually takes longer because Amp provided to charge slowly lowers. That is why.
For example, if Galaxy S battery is 1500mah, than 1C charge rate is @ 1.5amp.
If battery is 3000Mah, 1C is 3.0Amps and so on.
So like I have said over and over before, drain your battery away if you have to by choice or not. Just use it up, I will bet you your battery will last longer than you keep your phone.

U should avoid draining ur battery to 0% (witch is not possible with ur phone. When it shows 0% the charge of the battery is at 10-15%). Li-ion batteries dont have a memory effect, so it would be usless discharching it completely anyhow. Best for sgs battery is charging it before it goes under 50% that will improve the lifetime of ur battery (not how long it lasts before u have to charge but how long it lasts before u have to go and buy a new one)
How do i know? Simply cause i had to learn that a few weeks ago for the job im learning.
@xxgg: yes ur right, it wont really damage the battery if u runn it till thr phone shows its empty. But using an app to drain battery as quick as possible will, since the app forces the battery to give out more Ampere than its built to give out
Sent from my GT-I9000 using Tapatalk

Batteries Doomed To Fail?

I've noticed that mine (and others report) their SGS3's run particularly hot. This is most likely due to the dual core processor, the processor seems to be located at the bottom right of the phone (by the back softkey) as this is where the phone is the hottest. Im in Arizona and during the summer temps outside are excessive constantly over 100F. Even when in my home all day I can rarely get my battery temp down to 85F. Li-Ion batteries have a much shorter lifespan when exposed to temps above 85 and when exposed to excessive temps are also prone to "thermal runaway" in which the cells become so hot that the battery continues to self heat until catastrophic failure in which there is so much pressure built up inside the battery that when the casing fails it essentially becomes a flamethrower. The dell laptop battery recalls were caused by this, a flame thrower in my lap doesnt sound fun but neither does one in my hand (unless im using a real one). The polymer plastic casing is a terrible heat sync (especially with a rubber case). It seems these batteries are going to need to be replaced once a year.
Looking at about a 35% loss in capacity within one year. I also experience terrible battery life, moderate use i get about 6 hours, screen eating up most of my battery and when in doors i keep the screen brightness all the way down.
Data found from multiple websites but do not have enough posts to site source:silly:

Wait.. You're complaining about your phone being 85f? Try over 100f lol mine gets to 42c.....very annoying
Sent from my SGH-T999 using xda premium

Sent from my SGH-T999 using xda premium

I got my phone there first day it came out and its rooted and overclocked and it stays around 28 C but goes up to ~40C at heavy use
Sent from my SGH-T999 using xda app-developers app

Yes, these batteries are doomed.
I have been looking into the charging PMIC and if you can tell it to stop charging at 80%, but it appears to be hard set at 4360mV where it goes into a trickle charge mode and runs the phone of the USB power.
The problem is two fold. For one thing we have a 2100mA battery, and the charger is 900mA, so a 0.5C charging is good for long term battery life, even better if you charge over USB at 500mA. But the discharge rate can be as high at 1000mA if you have all the bells and whistles on and things are hot to begin with. The typical usage with screen on is 200mA, maybe 400mA with WiFi, more with BT. But current increases greatly when both cores are over 1.5GHz.
So the problem mostly seems to be the charging is reducing capacity by people going below 10% charge (if you graph the voltage you can see the tail off below about 15%) and charging above 80%. LiIon capacity is reduced by keep over 95F and also permanently reduced by draining to low voltage levels and also charging much above 4.2V and then holding the voltage there. I noticed the capacity after two weeks was reduced by 20% already.
And no, the thermal runaway is no longer a problem and I wouldn't mention it anymore. The battery self-protects, as well as the system is being very careful monitoring the thermals. Also, the CPU is throttled above 56C ( I believe)
But, I know in the PMIC controls you can disconnect the battery and run only on AC when plugged in. This would be ideal to leave charge the battery to 80% then stop charging it, and you could leave it plugged in at work or overnight without worrying about the battery capacity.

You lost 20% capacity in 2 weeks??? Wow!
I've had mine for going on 2 months and my battery seems as strong as ever! Still able to easily get over 24 hours off a full charge and still be above 10%.
I am not trying to be argumentative here but isnt the idea that going below 15% and charging above 80% purely myth? I've seen quite a number of people posting the same info in the past but when asked for a reliable source for their information they are never able to produce one. Im pretty sure I've read articles/studies that debunked it as well. (Ill try to find them but honestly may be thinking of something else I read. Ill let you know either way if I find it)
I do know its a good idea to have the built-in function that stops it charging around 95-97%, but isn't that just to prevent overcharging?
Also I should point out that my phone does often get quite warm, even hot sometimes, but it hasn't affected my battery life in any noticeable way.
As for your 20% drop in capacity, have you flashed any roms? The latest jb leaks have big battery drain issues. Also when you flash any rom it can take a few full cycles for the system to relearn how to accurately report battery use and can often trick people into thinking the battery capacity has gone down.
Like I said, not trying to argue with you. It seems you tend do do your research on this type of stuff so im hoping you can point me to where people are getting their information.
Sent from my SGH-T999 using xda app-developers app

Looking after battery

Hi all
Is there a definite answer to how you should charge your battery? Is it better to charge it before it gets to 40% like I have read or does it not really matter?
Also does charging it overnight do any damage?
Thanks all
Chris
Sent from my Nexus 7 using Tapatalk 4

The problem with battery care is that it has been tainted with old information that no longer applies to modern batteries.
The charging and discharging of the battery is tightly controlled by an IC to maximise life regardless of how you use it. All you need to be concerned with is making sure it doesn't sit fully discharged or fully charged for long periods (this is why when you first unbox a device it has about half charge)

Doesn't matter... just charge it when u think it s need to be charged...

High temperature is bad. Full charge is bad (charging 0.1V less than full generally doubles battery life). High temperature + full charge is really bad (negative synergies).
Overdischarge is bad as well, but if you stay above 3.3V or so, there should be no negative effect.
I have hacked my kernel to lower the charge voltage setting from 4.3V to a configurable value between 4V and 4.3V. I will release a kernel patch, once I have done some more testing.
BTW, a lower charge current is better for the battery as well. So if you have time, you can use a standard USB port (only provides 2.5W instead of 6W with the included charger) or add a USB extension cable/use a longer/thinner wire gauge micro USB cable (this will limit the power drawn from the included charger).

Put it this way:
You will have moved on from this device long before you would notice any battery problems caused by "bump charging", charging overnight, or any other normal charging behavior.
Check the Battery University for details about charging Lithium-ion polymer.

tni.andro said:
High temperature is bad. Full charge is bad (charging 0.1V less than full generally doubles battery life). High temperature + full charge is really bad (negative synergies).
Overdischarge is bad as well, but if you stay above 3.3V or so, there should be no negative effect.
I have hacked my kernel to lower the charge voltage setting from 4.3V to a configurable value between 4V and 4.3V. I will release a kernel patch, once I have done some more testing.
BTW, a lower charge current is better for the battery as well. So if you have time, you can use a standard USB port (only provides 2.5W instead of 6W with the included charger) or add a USB extension cable/use a longer/thinner wire gauge micro USB cable (this will limit the power drawn from the included charger).
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Gulp none of that made sense

chrisnewton said:
Gulp none of that made sense
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Then you need not worry about it. As I said, the battery is controlled by a fairly sophisticated IC, just charge it whenever you need to.

these batteries love refridgerators. you charge it when it comes to about 20-25%. I'm not compelling anyone, it's just that I've had this type of cycle since three years on my faithful ol' HTC Desire. Now its all burned, but I did have something to compare it with. My czn also got an htc desire a couple of days after i got it, and he is charge-freak. He charges his phone in his home, car, uni, bank, everywhere he can get his hands on a socket. The result: he's run down 4 batteries, and is on the brink of a 5th one. while I had only one throughout my three-year life cycle of my Desire.
So, try not to overheat your battery. Don't use it when charging. Charge it before you sleep at night, and let it rest for overnight. This overnight rest boosts battery life, and your charge will last almost 2 days. this is my personal experience speaking, and with the multitude of custom OC UV kernels out there, you might wanna go Chuck Norris with your battery.

Generally the most common way people damage the batteries is just by heat. Other charging ideals aren't really all that important in the grand scheme of things. The phone and chargers are smart enough to handle the other aspects.
Heat's a problem because the act of charging actually creates heat. So while you think it may not be too hot when it's charging in the mid-day sun in your car, it will be when it warms up from charging. It'll get so hot, in fact, that it may even refuse to charge, although you see this happen more on phones than tablets.
Also, don't leave your tablet dead for a month. That's bad. I don't think anyone does this, though, because what's the point of having a tablet if you leave it dead for a month?

Leaving phone connected after it finishes charging

I tether with my phone all day and I have to keep it connected because it drains the battery quick. Will it have any negative effects on the battery if I leave it connected even if its at 100%?

whytechapel_x said:
I tether with my phone all day and I have to keep it connected because it drains the battery quick. Will it have any negative effects on the battery if I leave it connected even if its at 100%?
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I do the same and haven't had any ill effects, phone stays on charge at work all day

I believe the charger (and most, if not all, smartphone chargers) intentionally cuts out when the battery is saturated to prevent overcharging. Then top off again once the battery level drops a bit. In fact, on some devices (when attached to charger and fully charged) you will actually see the battery level occasionally drop to 99 or 98% then back up to 100% again. Although I haven't noticed this on the M8 yet.
You can get into a discussion of mini-cycles and other ill effects from keeping the device plugged in all the time. But just anecdotally I do this all the time (just leave the phone on charger overnight most nights) and haven't noticed much (if any) ill effect on battery life after owning 5 HTC devices, plus 2 Samsung tablets; most of which were used 1- 2 years each with very little if any decline in battery life over the time they were used.

Actually leaving the battery at full capacity all the time (if I understood your post) is bad for the long term health of the battery.
You need to find an app that cuts your charger off at 70-80%. Most modern laptops have this functionality built in for people that leave it plugged in all the time.

Heisenberg420 said:
Actually leaving the battery at full capacity all the time (if I understood your post) is bad for the long term health of the battery.
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Technically, I would agree. And "best practice" is to cycle often and avoid leaving the phone on the charger when fully charged. But often folks (myself included) will not always follow what is best, and its not always feasible. As I've mentioned, after owning a decent number of smartphone and tablet devices and using then for 1-2 years, I haven't noticed much or any decline in battery life for the time I was using them (despite often charging them overnight). I have no doubt there might be some slight decrease, and especially of one intends to use the device for more than 2 years. But I personally never do (too much of a gear junkie) and also don't sell/trade my old phones.
Your point is a fair one, as it best the OP to know all the facts, risks, etc. and make his own conclusion. The following link has some interesting technical discussion on charging Li ion: http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries

I bought an ampere-meter that measures current from the charge to the device and I have awesome news.
Li poly batteries have a very strict charging procedure (voltage and current should change during the charge). The original HTC charge charges flawlessly.
Once the battery tops up to 100% current drops dramatically.
If I do some power demanding task, the current goes up again. This means that all power consumption is taken from the charger, leaving the battery in 100% all the time, without jittering between 99-100%
NOTE:
Yet. The designers of the Li Poly define it as an electrical spring. This means there is no deterioration in the battery life AS LONG AS YOU DON'T CHARGE THE BATTERY OVER 4 volts.
100% is 4.2 volts, meaning you'd stop charging at 85% to prolong battery life.

Is there a way to turn off the fast charging in the OS?

I plan to use this phone for many years, so I'm worried that the fast charging might do damage to the battery in the long term or shorten its lifespan, so I'd rather charge it "slower". Is there a way to turn off the fast charging in the OS? Or is my worry unsubstantiated?

513263337 said:
I plan to use this phone for many years, so I'm worried that the fast charging might do damage to the battery in the long term or shorten its lifespan, so I'd rather charge it "slower". Is there a way to turn off the fast charging in the OS? Or is my worry unsubstantiated?
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You made my night... Slower charger kills battery not fast charging.. fast charge save battery to be honest. And you dont have to be worry since the batteries now are LI-lon . Go get info in google about the batteries . All i can say you got infos wrong.
Sent from my ONEPLUS A3003 using XDA-Developers mobile app

Agree with previous post. But if it makes you feel better, just don't use a dash charger...
Very simple.

lummujaj said:
You made my night... Slower charger kills battery not fast charging.. fast charge save battery to be honest. And you dont have to be worry since the batteries now are LI-lon . Go get info in google about the batteries . All i can say you got infos wrong.
Sent from my ONEPLUS A3003 using XDA-Developers mobile app
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OK. I didn't know.
I was speaking from my past experience with Samsung Galaxy Note 4. I bought couple of original Samsung batteries and rotate them throughout daily usage. I noticed a significant difference in battery life comparing the ones that I used fast charge on vs the ones I didn't. After that I stick to NOT using fast charge.
Of course, that's nothing scientific. And Samsung uses a different fast charge mechanism (higher voltage) than OnePlus (higher current), so there could be difference there too.

Because Dash Charge seems to be re-labeled Vooc charging from OPPO, I can tell you, that the last two years with charging minimum one times every day, there is no bad effect on the battery (still the first one).
Sent from my Find7 using XDA-Developers mobile app

513263337 said:
OK. I didn't know.
I was speaking from my past experience with Samsung Galaxy Note 4. I bought couple of original Samsung batteries and rotate them throughout daily usage. I noticed a significant difference in battery life comparing the ones that I used fast charge on vs the ones I didn't. After that I stick to NOT using fast charge.
Of course, that's nothing scientific. And Samsung uses a different fast charge mechanism (higher voltage) than OnePlus (higher current), so there could be difference there too.
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Samsung devices are notorious for killing batteries and its more likely hardware than it is the battery itself, u will be fine

I have a similar question: does it make any problem if I leave the phone in (dash) charge for the whole night? I mean, if I sleep for 7hrs I'll have 1h of fast charging and 6hrs of nothing-but-charger-heating. Will this habit hurt the phone's battery or the charger itself?

513263337 said:
I plan to use this phone for many years, so I'm worried that the fast charging might do damage to the battery in the long term or shorten its lifespan, so I'd rather charge it "slower". Is there a way to turn off the fast charging in the OS? Or is my worry unsubstantiated?
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I use Samsung 1.5 Amp charger and keep my battery between 40% to 80%
I think these are best for long term usage.

repsol89 said:
I have a similar question: does it make any problem if I leave the phone in (dash) charge for the whole night? I mean, if I sleep for 7hrs I'll have 1h of fast charging and 6hrs of nothing-but-charger-heating. Will this habit hurt the phone's battery or the charger itself?
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I used a samsung S3 before and overnight charging killed my battery! Bless samsung for making battery removable on S3!
If i were you, I wouldn't leave my precious OP3 on an all-night charge.

iam_adarsh said:
I used a samsung S3 before and overnight charging killed my battery! Bless samsung for making battery removable on S3!
If i were you, I wouldn't leave my precious OP3 on an all-night charge.
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Well, it was my first thought, but everyone in this topic is telling me that OP works different than Samsung!

iam_adarsh said:
I used a samsung S3 before and overnight charging killed my battery! Bless samsung for making battery removable on S3!
If i were you, I wouldn't leave my precious OP3 on an all-night charge.
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that's the problem of the charger or the phone itself. thecharger is designed not to charge when the battery is full. What I want to say is you experienced an accident and sorry for you.
The most serious threat to the battery is high temperature. OnePlus 3 reduce the charging heat by its dash charge. The dash charge pushes low voltage directly to the phone, which mitigates the heating problem by pushing high electric current and making the voltage transition process in dash charger. Most of other phones still use high voltage because they fail to create high current. recalling the physics in high school, the power is current multiplied by voltage and energy equals to power multiplied by time. than you would understand the powerful feature of dash charge

dlhxr said:
that's the problem of the charger or the phone itself. thecharger is designed not to charge when the battery is full. What I want to say is you experienced an accident and sorry for you.
The most serious threat to the battery is high temperature. OnePlus 3 reduce the charging heat by its dash charge. The dash charge pushes low voltage directly to the phone, which mitigates the heating problem by pushing high electric current and making the voltage transition process in dash charger. Most of other phones still use high voltage because they fail to create high current. recalling the physics in high school, the power is current multiplied by voltage and energy equals to power multiplied by time. than you would understand the powerful feature of dash charge
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The power is current multiplied by voltage so what's the difference between high current mutiplied by low voltage versus low current multiplied by high voltage ?
2V x A = V x 2A

lapocompris said:
The power is current multiplied by voltage so what's the difference between high current mutiplied by low voltage versus low current multiplied by high voltage ?
2V x A = V x 2A
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qc3.0 uses low current and high voltage. Dash uses high current and low voltage. As a result, they have similar power and both charge quickly. However, the heating problem is more serious for qc 3.0. The difference of the battery voltage and charger voltage is the leading factor that determines the transition efficiency. The bigger the difference is, the more heat charging process generates.
So~ you could look up for qc3.0. for mi 5, it has three adaptive mode: 5V2.5A、9V2A、12V1.5A. for dash, we have 5V4A

repsol89 said:
I have a similar question: does it make any problem if I leave the phone in (dash) charge for the whole night? I mean, if I sleep for 7hrs I'll have 1h of fast charging and 6hrs of nothing-but-charger-heating. Will this habit hurt the phone's battery or the charger itself?
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There is no problem with leaving your phone on the charger. I do this with every phone since years.
If people experience something bad with it, their phone or battery are broken. The current tech just keeps the battery at full capacity once it's full. Never had any problem.

So many "opinions" but mostly incorrect. The answer to the OPs question is that you don't have to worry about quick charge destroying your battery. It will not have significant impact on your battery capacity. I would have been more worried about breaking the usb type-c port(see point 2 below). All things considered, after 2-3 years you will probably buy a new phone anyway and also you can always buy a replacement battery cheap. But you can simply use a normal charger which delivers <3A with 5V so you don't have to worry about anything.
1- Slow charge does not damage lithium-ion chemistry batteries. You can read about lithium-ion charging here. But neither fast charge will damage lithium-ion as long as the battery temperature is not extremely high. Also temperature at different charge stages effect the capacity decrease (source) But you will be fine as long as the battery temperature is less than 45C. The charging IC should stop the charging process if it exceeds it anyway.
2- Qualcomm's quick charge is much better than voop/dash charge from an engineering standpoint. This is why also USB organization's power delivery (PD) standard uses similar scheme. The problem is the cable and the connector. The maximum allowed current at 5V is 3A with usb type-c connector (source). If you provide more current, you need to use a thicker cable(dash/vooc cables). But you can't change the connector, and it may damage your connector in the long run to use 3+A currents to charge. Because there is a contact resistance (R) and the power lost in the connector is square of current (I) times R. Meaning R*I^2, it will wear off the connector faster. This is why some companies with some engineering skills opt in to use higher voltages instead of higher currents.
3- You can't push more current to lithium-ion battery than it accepts. The maximum current is voltage delta (between charging voltage and battery voltage) divided by internal resistance. This is why you can charge empty battery much faster. If you use an app like Ampere from play store, you can see the voltage of your battery before and after you plug in your charger. If you plug in a normal charger, you will see that it goes up a little bit. If you plug a quick charger it goes up to ~4.35V
4- Yes, there is conversion inefficiencies for quick charge inside the phone, and it will warm up the "phone" and battery only indirectly. The conversion IC are normally >90% efficient (source). This does not mean that your battery will be destroyed. It is perfectly fine to charge lithium-batteries with up to 45C temperatures (source).
4- If overnight charging killed your battery, your battery was faulty (or you had 3rd party battery?). The battery should be capable of holding 4.35v charge. You would need to store battery at 4.35V full charge for over 3 months to loose 20% capacity (http://batteryuniversity.com/learn/article/how_to_store_batteries). Having full charge few hours overnight won't destroy it unless your battery or device is faulty.
With all this information, I would rather opt in for USB-PD/Qualcomm Quick Charge solutions than VOOC/DASH solutions. I think eventually only USB-PD will remain and everybody will use it as a standard only.