Fast charging madness - Huawei MediaPad M5 Guides, News, & Discussion

So the tablet supports fast charging at 18w, yay , except it only supports it some of the time, and it likes to hunt between 5V2A and 9V, can't it just stick to 9V! I hope it gets an update to fix this when it gets Android Pie.
Try downloading devcheck, get the battery current floating monitor and you will find that it fast charges at around 3A when the screen is on, which is acceptable as some power is going to power the device. 3A*4.2 is about 13w, which is fast charging, yay . But if you fire up something intensive, you would expect the current to fall a bit, as the tablet's CPU sucks up some juice, but no, it nosedives to about 1A-0.5A, this is because it has now switched over to 5v mode and thus is limiting the power, this is so annoying! The tablet is hardly even warm and it does this, battery temp is about 30-32c. It would be nice to actually use my tablet whilst it is charing and for the current to not go right down and trickle charge the tablet. below 1A charging a 7500ma battery is just painful.

Related

is it true? Higher Amperes = Faster charging time?

please help because my charger is rated @ 0.1A which means 100mA only? (wth) I googled and found out that 700mA is the oem batt charger for xperia x1 some use 1A others 1.5A please help thanks. Cause I'm buying a new charger rated at 1A so it would charge faster
Yes, the higher the mA the more juice can be drawn from it.
Many people think that it means it will only put out that current, but current is drawn not pushed, and an electrical device will draw as much as it needs.
With a NiMH type rechargable battery, there's a simple formula to work out the charging time.
C is the capacity of the battery.
1.4C/mA
So a 1000mAH NiMH battery charged at 1000mA would take 1.4 hours to charge.
However, Lithium batteries are not simple to charge without blowing them up, hence the need for a charging circuit.
The charging circuit should take only as much current as it needs to charge the battery safely, so a 2A charger would probably be overkill although it would most likely enable you to run TomTom, Opera, and watch a movie while charging in the quickest possible time
If you're charging while using the device heavily (GPS/Wifi/3G browsing) then 1A charger would be better, but if you normally just leave the phone charging without using it then 600mA normally does the job.
i think 2A charger would kill the battery. Can you suggest a 1A charger OEM htc for my xperia x1? thanks
henryfranz2005 said:
i think 2A charger would kill the battery. Can you suggest a 1A charger OEM htc for my xperia x1? thanks
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You've fallen for what I mentioned in my second sentance.
A 2A power supply does not only provide 2A, it provides anything up to 2A.
So if your phone only draws 1A, it will only provide 1A.
The phone is the charger, the thing we think of as the charger is actually just a power supply.
Unless someone has the spec sheets for the charging circuit in the phone, we don't know the maximum rate at which it will charge the battery.
One way to find out would be to discharge the battery to a level where the phone won't turn on, then without turning the phone on, set it charging.
Time how long it takes for the LED to turn green.
Divide 1230 by the time in hours that it took and you've got roughly the current drawn to charge it.
Say it takes 90 minutes with a 1A power supply, so that's a maximum charge rate of 800mA, so even if you connected it up to a 5A power supply, it will still only charge at 800mA.
So, you connect it up to your 1A power supply, that means with the phone on you've got a "spare" 200mA to play with.
If the phone isn't using more than 200mA to just "run" itself, then you'll charge a battery in the 90 minutes.
However, say you start your sat nav app, it draws 400mA (guess), the charging circuit drops to use only 600mA, taking longer to charge but allowing you to find where you're driving too.
While you're navigating to a restaurant, you want to phone ahead to confirm the reservation, so you open up Opera and search google with a 3G connection, that takes another 400mA (guess). The charging circuit now only has 200mA to use. Your battery isn't getting much charge.
Imagine using a 600mA power supply instead and you can see how you could get to the situation where despite being plugged in, your battery is running down.
I've used 400mA to demonstrate the impact, of course they real values are lower, otherwise you'd only get an hour's use out of having GPS and 3G enabled. Hmm, then again...
thanks for helping me here I decided that I would buy a new charger. (1A) because my charger is not drawing enough amperes (my charger is rated at 0.1A believe me. I thought I read the specs wrong. But it takes roughly 18 hrs to fully charge my battery.
I input my battery specs here http://www.csgnetwork.com/batterychgcalc.html
and yeah I think the computation is correct. Thanks SIR XACCERS
xaccers said:
You've fallen for what I mentioned in my second sentance.
A 2A power supply does not only provide 2A, it provides anything up to 2A.
So if your phone only draws 1A, it will only provide 1A.
The phone is the charger, the thing we think of as the charger is actually just a power supply.
Unless someone has the spec sheets for the charging circuit in the phone, we don't know the maximum rate at which it will charge the battery.
One way to find out would be to discharge the battery to a level where the phone won't turn on, then without turning the phone on, set it charging.
Time how long it takes for the LED to turn green.
Divide 1230 by the time in hours that it took and you've got roughly the current drawn to charge it.
Say it takes 90 minutes with a 1A power supply, so that's a maximum charge rate of 800mA, so even if you connected it up to a 5A power supply, it will still only charge at 800mA.
So, you connect it up to your 1A power supply, that means with the phone on you've got a "spare" 200mA to play with.
If the phone isn't using more than 200mA to just "run" itself, then you'll charge a battery in the 90 minutes.
However, say you start your sat nav app, it draws 400mA (guess), the charging circuit drops to use only 600mA, taking longer to charge but allowing you to find where you're driving too.
While you're navigating to a restaurant, you want to phone ahead to confirm the reservation, so you open up Opera and search google with a 3G connection, that takes another 400mA (guess). The charging circuit now only has 200mA to use. Your battery isn't getting much charge.
Imagine using a 600mA power supply instead and you can see how you could get to the situation where despite being plugged in, your battery is running down.
I've used 400mA to demonstrate the impact, of course they real values are lower, otherwise you'd only get an hour's use out of having GPS and 3G enabled. Hmm, then again...
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you're correct sir. It would take 90MINUTES to charge my phone using 1A
you're so cool sir
henryfranz2005 said:
you're correct sir. It would take 90MINUTES to charge my phone using 1A
you're so cool sir
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Happy to have enlightened
Just wish I could have been more helpful in suggesting which to buy.
Just be careful in using a charger with high Amp rating. I have 2 chargers- 1 charges my phone in more or less an hour, the other in almost half a day (so I don't use it).
One time, my battery got drained, so no problem, I plugged it in to charge. To my horror, it wasn't charging (no blinking light). sometimes I get a blinking red light, and the power button emits a red light. So I wasn't all that bothered, I thought it might need some more time to charge, so I left it alone. But the day was fast ending, without anything happening, and I needed my phone the next day for work. So I went to have it checked, the tech said it was a battery problem, so I just bought a replacement battery.
After 2 days, the same thing happened. Not charging, Red light blinking and annoying me to death. I went and had the battery replaced again.
A few days passed, so far so good, nothing happened. I just made sure that I don't let my battery drain and charge it as soon as it falls below half.
One night, I attended a party and wasn't paying too much attention to my phone. You can guess what happened, the battery went dead. I couldn't find my (fast-charging) charger, so I used the other one while I looked for it- still wasn't charging.
I couldn't find it, so I got ready to go have the battery replaced again. But then it blinked. I thought my mind might be playing tricks with me. It blinked again. (actually it wasn't blinking, it was kind of like that slow color-changing when you open the phone). I pressed the power button. It's alive!
This happened several times already, so to make the long story short. It's the charger's fault. Now, its the charger with the low amphere rating that I bring with me, even if it does charge slowly. I only use the other one, when I'm pressed for time.
Sorry for the long post. Just wanted to share my story.
Sounds like it's the fault of the battery monitor in the phone letting the voltage of the battery drop too low damaging the cell.
A low current charge can often bring such a damaged cell back to life, where as a full current charge is likely to expose the damage and kill off the battery.
There are several things which damage lithium cells.
Heat is one of them, which is why if you're using a laptop that allows it, it's better to run off the mains where possible with the battery out. Of course this isn't always practical and if someone knocks the power lead off goes your laptop. With our phone's it's not an option. Charging also produces heat, the higher the current the hotter it gets, so short top-up charges are better than long charges.
Discharging them too low damages them. The phone should prevent this by stopping you being able to power on the phone if the voltage is too low, however it could be misreading the voltage. Sometimes they can be revived if the voltage hasn't dropped too far below the minimum, with a low current charge, but the damage would have been done so the battery wouldn't last as long as an undamaged one treated the same way and of the same age.
Time. It's a killer. From the moment of manufacture the battery's internal contacts start losing efficiency, giving the result of lower capacity over time. Heat increases this. There's nothing you can really do about it, just remember there's no point buying a spare battery to use in the future when your original one finally stops holding enough charge, by then the spare would have degraded too, so buy replacement batteries when you need them, not before.
xaccers said:
You've fallen for what I mentioned in my second sentance.
A 2A power supply does not only provide 2A, it provides anything up to 2A.
So if your phone only draws 1A, it will only provide 1A.
The phone is the charger, the thing we think of as the charger is actually just a power supply.
Unless someone has the spec sheets for the charging circuit in the phone, we don't know the maximum rate at which it will charge the battery.
One way to find out would be to discharge the battery to a level where the phone won't turn on, then without turning the phone on, set it charging.
Time how long it takes for the LED to turn green.
Divide 1230 by the time in hours that it took and you've got roughly the current drawn to charge it.
Say it takes 90 minutes with a 1A power supply, so that's a maximum charge rate of 800mA, so even if you connected it up to a 5A power supply, it will still only charge at 800mA.
So, you connect it up to your 1A power supply, that means with the phone on you've got a "spare" 200mA to play with.
If the phone isn't using more than 200mA to just "run" itself, then you'll charge a battery in the 90 minutes.
However, say you start your sat nav app, it draws 400mA (guess), the charging circuit drops to use only 600mA, taking longer to charge but allowing you to find where you're driving too.
While you're navigating to a restaurant, you want to phone ahead to confirm the reservation, so you open up Opera and search google with a 3G connection, that takes another 400mA (guess). The charging circuit now only has 200mA to use. Your battery isn't getting much charge.
Imagine using a 600mA power supply instead and you can see how you could get to the situation where despite being plugged in, your battery is running down.
I've used 400mA to demonstrate the impact, of course they real values are lower, otherwise you'd only get an hour's use out of having GPS and 3G enabled. Hmm, then again...
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Spot on! you really hit it...look at it againas in this analogy, you have a 2mm diameter water pipe and being fed from a 10mm diameter pipe, you cant get into the 2mm more than it could take. and reversing the scenerio, inference could be drawn!
bR

Touchpad Charger

Is it safe to charge my Android phone with a Touchpad charger?
steventrannn said:
Is it safe to charge my Android phone with a Touchpad charger?
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Well, it would charge your phone as any other charger, and at twice the speed (at first!) but the battery would stop lasting as long after a few cycles of using the touchpad charger.
Most Android phones seem of use ~ 800ma to 1ma current input, whereas the touchpad uses ~ 2ma of current input for charging.
So, in short - Don't
The phone will draw the current it needs and no more, the charger does not force current down to the phone. So in short - go for it
I've heard it was fine. But I'm still scared to mess something up. lol
Been charging my phone with the touchpad charger and had no significant battery deterioration. It seems like the phone does not charge as fast as it would using its own charger, but it could be my impatience getting the best of me.
I've been charging my Evo 3D with the Touchpad charger for about a year, with no ill effects. Probably a placebo effect, but it seems to charge faster than the standard HTC charger.
like others mentioned there is should be no ill effects as long as charger is working correctly, it only pulls as much as the phone will let it (in my case with the sensation its 1amp) and the tp (and subsequently the charger) goes into fast charging mode when it detects the right amount of resistance...

Fast Charging Not Always Fast

I just picked up a wireless fast charger for use in my car, and found out (via one of those USB power meters) that the S7 isn't actually fast charging even though it says it is. When the screen is off and the device is fully idle, it will charge at 7-12W (power input to the wireless fast charger) but when the screen is on, it drops down to 3-5W which is not even enough to maintain state of charge if I'm doing something like a phone call or GPS navigation. Any ideas why this is? Seems like it might be thermal related. I've got root and various tweaking apps, is there a way to force it to do full 10W charging whenever possible and throttle CPU instead if needed for thermals?
Found the answer to part of my question here: http://androidforums.com/threads/galaxy-s7-wont-fast-charge-if-the-screen-is-on.1002329/
It's by design that if the temperature is too high or the screen is on fast charging is disabled. Question remains if this can be bypassed by root commands/tweaks or not.
jkenny23 said:
Found the answer to part of my question here: http://androidforums.com/threads/galaxy-s7-wont-fast-charge-if-the-screen-is-on.1002329/
It's by design that if the temperature is too high or the screen is on fast charging is disabled. Question remains if this can be bypassed by root commands/tweaks or not.
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It also depends on charger
As long fast charging is switched ON on your phone and the wireless charger does support fast charging, it will say that its fast charging.
However, if your phone while charging got hot or you are charging in a hot ambient temperature, the phone will charge at normal rates even less as the temps of the phone goes up. Thus the fan in the wireless charger
Btw am referring to the official samsung fast charger stand with a gs7, havent tried other brands.
Hope this helps

[q] Wireless Charging Vs Wired Charging - Impact on Battery

Hey guys,
I was looking for some clarification on this topic.
So I heard on a youtube video (can't remember which, for the life of me, I just know it was an S8 video) that Wireless Charging has a better impact on battery in the long run.
They had stated that the battery would continue to hold a better charge over time, where as, if you used wired charging, the amount of charge the battery can hold over time would be much less to when you first got it.
Now I do know that battery gets worse over time, however, I have never heard anything about how wireless charging can increase the longitivtiy of the battery.
Maybe someone on here might have more information on this?
I will try to find that youtube video but if this is the case, then I will definitely need to get a wireless charger.
Regards
Unless this youtuber tested 2 phones for a year, charging one with a cable and another with wireless charging i wouldn't listen to what they're saying.
peachpuff said:
Unless this youtuber tested 2 phones for a year, charging one with a cable and another with wireless charging i wouldn't listen to what they're saying.
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Yeah I agree. A believe a charge cycle is the same regardless of how it is being charged.
Would never think wired charging puts more stress on battery life.
I think though that with wireless charging once the phone is fully charged the pad cuts out so it won't over charge
With a wired connection when the phone is charged its still consistently trying to charge which can end up damage battering the long term
craigels said:
I think though that with wireless charging once the phone is fully charged the pad cuts out so it won't over charge
With a wired connection when the phone is charged its still consistently trying to charge which can end up damage battering the long term
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This is also what I have been wondering. If this is true then I may get a nice wireless pad for charging overnight (maybe the new official samsung "convertible" one but its damn expensive). I would have thought that the phone itself knows when a battery is charged and stops drawing the current from the cable though, so it would make no difference either way if that is true (but perhaps its not?).
But I did hear the exact opposite to op, that wireless charging was worse for the batteries, possibly due to the heat generated. But I don't know how true that is.
True
It's better for the battery because it charges it more slowly than a direct wired connection. There is no more heat buildup than using a wired charger, in fact likely less since the charging rate is lower.
As for the other comment that a wired charger doesn't shut off but keeps charging once the battery is full is patently false. The charging circuits whether wired or wireless are quite intelligent and gradually ramp down the charging current as the battery approaches capacity, ultimately delivering just enough current to keep the phone running. In a closed system the energy has to go somewhere and if the charger didn't do this you'd have 18W of power being dissipated as heat and a serious problem on your hands.
craigdamey said:
It's better for the battery because it charges it more slowly than a direct wired connection. There is no more heat buildup than using a wired charger, in fact likely less since the charging rate is lower.
As for the other comment that a wired charger doesn't shut off but keeps charging once the battery is full is patently false. The charging circuits whether wired or wireless are quite intelligent and gradually ramp down the charging current as the battery approaches capacity, ultimately delivering just enough current to keep the phone running. In a closed system the energy has to go somewhere and if the charger didn't do this you'd have 18W of power being dissipated as heat and a serious problem on your hands.
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For wireless I believe the heat generated is more, it is about the method of delivering the power, not the speed. The induction used to transfer power wirelessly is obviously going to be far less efficient and will generate more heat to get even a slower transfer rate then getting the power straight down a cable (but if someone knows otherwise then feel free to correct me). But then I guess the slower charging rate might also put less stress on the battery which is probably good.
For the wired, what you are basically saying is that leaving a phone plugged in to a wired charger will not harm it since the current will have been reduced in the same way a car battery charger might reduce it to a "maintenance" mode once it is fully charged. So people are believing the old myths that you can overcharge a phone, which would seem to be impossible (although I do wonder why they keep slapping up notifications saying things like "FULLY CHARGED! UNPLUG CABLE!" as if leaving it plugged in would in some way damage it!).
Just saw this which explains the overcharging possibility (or lack of)
http://www.androidauthority.com/leave-phone-plugged-overnight-703078/
ewokuk said:
For wireless I believe the heat generated is more, it is about the method of delivering the power, not the speed. [/url]
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The coils themselves don't generate a significant amount of heat, it's the battery itself that causes the phone to get hot. Slower charging means less heat, which is better for your battery so wireless charging will increase your battery life. As the article notes it is also best to keep your phone above 40% charge, partly because fast chargers slow down significantly after 50% to save the battery. That initial burst from 0-50% is done to save you from a dying battery but it takes its toll.
Also note that the S8/S8+ have new battery technology that provides much improved battery life. They're saying 5% loss of capacity after two years compared to 20% for previous generations.
As a bonus not continuously plugging/unplugging a cable from your USB port will make that last longer too. I hardly ever plug my S7 Edge into a physical cable, and I know quite a few people who have killed their USB ports and can no longer charge and or transfer data from them.
craigdamey said:
The coils themselves don't generate a significant amount of heat, it's the battery itself that causes the phone to get hot. Slower charging means less heat, which is better for your battery so wireless charging will increase your battery life. As the article notes it is also best to keep your phone above 40% charge, partly because fast chargers slow down significantly after 50% to save the battery. That initial burst from 0-50% is done to save you from a dying battery but it takes its toll.
Also note that the S8/S8+ have new battery technology that provides much improved battery life. They're saying 5% loss of capacity after two years compared to 20% for previous generations.
As a bonus not continuously plugging/unplugging a cable from your USB port will make that last longer too. I hardly ever plug my S7 Edge into a physical cable, and I know quite a few people who have killed their USB ports and can no longer charge and or transfer data from them.
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Yeah I am torn at the moment between using cable and getting a wireless charger. I like my stuff charged asap but that's partly because i never leave it plugged in overnight and want it charged before bed (which I now know is not a problem anyway) and partly because i want to be able to unplug it to use it if i get a message or email, which isn't an issue with wireless as I can just pick it up and put it back on there after. I assume taking it off the charging pad and putting it back on will not have any detrimental effects to the battery. I am just trying to weigh up the pros and cons of each. All things considered I am leaning towards wireless, particularly if it isn't worse for the battery (although lets face it the difference in degradation between wireless and wired, is going to be so small it's probably not even noticeable after a couple of years by which time I would have a new phone anyway). I wonder if there is a better wireless charger which will be more future proof than the new convertible samsung one (in case I ditch samsung in future) and still give max speed, I would like one that is tilted so I can see the screen though.
My s5 is 3 years old and has only ever been charged by the massive double width "micro USB" cable which takes some force to get in and out of the socket. Still works perfectly though. Never had any usb port of any kind on any device fail, no idea what these other people are doing to kill them!
ewokuk said:
Yeah I am torn at the moment between using cable and getting a wireless charger.
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Having the dock by my bed is very convenient. Just place it on at night and pick it up during the morning. If I need to grab it for anything I can without getting tangled up in wires and it even sits at the right angle so that the always on display becomes my nightstand clock/alarm clock. Once you've gone wireless you won't go back.
craigdamey said:
Having the dock by my bed is very convenient. Just place it on at night and pick it up during the morning. If I need to grab it for anything I can without getting tangled up in wires and it even sits at the right angle so that the always on display becomes my nightstand clock/alarm clock. Once you've gone wireless you won't go back.
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I always turn my phone off at night anyway so I don't get disturbed by some spam message or something (I know I can probably set it up to be silent at certain times, but then why leave it on at all, using the battery for nothing). £70 for that Samsung charger though!! I know there are much cheaper ones but I am not sure they will charge at the same rate, the new samsung one charges faster than any previous wireless charger AFAIK and I would want one where the phone can sit up, and most are just flat. Hmmmm although the do have it for £50 on amazon sold by "fonejoy", still steep though.
This one looks good https://www.amazon.co.uk/CHOETECH-W...=UTF8&qid=1492192247&sr=1-9&keywords=choetech but not sure if itll charge at the same speed as the new samsung one and doesnt use a USB-C connector which probably rules it out. May as well just get the samsung one.
I use the US version of this and it works fine. https://www.amazon.co.uk/d/Mobile-P...d=1492192742&sr=1-5&keywords=rav+power+qc+2.0. The Fast Charging Dock comes with a cable so that should be all you need.
And yes, I have my Do Not Disturb settings to suppress notifications 10:30PM to 6:30AM. Wife complained she couldn't sleep with all that noise going on
craigdamey said:
I use the US version of this and it works fine. https://www.amazon.co.uk/d/Mobile-P...d=1492192742&sr=1-5&keywords=rav+power+qc+2.0. The Fast Charging Dock comes with a cable so that should be all you need.
And yes, I have my Do Not Disturb settings to suppress notifications 10:30PM to 6:30AM. Wife complained she couldn't sleep with all that noise going on
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Thats a wall charger? I'm talking about the charging pad itself. I believe the new Samsung one outputs 15w so is faster than any previous ones which are all 10w I think.
ewokuk said:
Thats a wall charger? I'm talking about the charging pad itself. I believe the new Samsung one outputs 15w so is faster than any previous ones which are all 10w I think.
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There are only two types of charging dock, standard and fast-charge. None of them output 15W to the phone. The expensive Samsung is just a fancy fast-charge dock so it will charge at the same rate as the Seneo and others that support fast-charge. The Samsung fast-charge adapter only provides a maximum output power of 15W (9V @ 1.67A) so it would require 100% transfer efficiency to charge the phone at that power, and in reality it's only about 65% so at most you'll see 10W versus standard Qi charging at around 7W.
All of the Seneo chargers I have coupled with RavPower or Samsung Fast-Charge adapters charge at the same rate (10W to begin with tapering off to 7W above 50% charge).
craigdamey said:
There are only two types of charging dock, standard and fast-charge. None of them output 15W to the phone. The expensive Samsung is just a fancy fast-charge dock so it will charge at the same rate as the Seneo and others that support fast-charge. The Samsung fast-charge adapter only provides a maximum output power of 15W (9V @ 1.67A) so it would require 100% transfer efficiency to charge the phone at that power, and in reality it's only about 65% so at most you'll see 10W versus standard Qi charging at around 7W.
All of the Seneo chargers I have coupled with RavPower or Samsung Fast-Charge adapters charge at the same rate (10W to begin with tapering off to 7W above 50% charge).
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Ahh ok, I will have to check out a few seneo pads.
If your using fast charging AKA Adaptive charging it shouldn't matter either way. The Fast charging port on the phone, and the wireless charging should go through the phone and the phone should automatically stop all charging going to the battery. This is the reason why if you were to leave your fast charger on all night whether it be Wireless or wired, you can pick your phone up at 99% or 98% instead of 100%. The phone stopped charging, then when it drops to a certain % it starts to charge up again.
As far as which is actually best for strain, it shouldnt matter because afaik to the battery its the all the same. Wireless charging just has some coils almost that send the charge wirelessly, but it still goes to the same place.
This is what I have read from google, so I am no expert on the subject, but it seemed pretty legit, and makes sense to me, a person with a Tech background. If anyone knows better please be my guest.
I'm going with wireless charging pads at home but a magnetic cable for in the car.
Not found a good car holder that has the wireless pad built in so I will stick with my ibolt for a bit longer
Sent from my SM-G935F using Tapatalk
There is no correct answer to this question. Battery life is function of many things -
1. Every battery has specified charge cycle. One full charge from min to max is 1 cycle. Two full charge from mid to max is also 1 cycle. So the more you use your device, charge cycles will come to an end more quickly. For example if you use two similar spec phones; first one you use heavily requiring full cycle charge everyday vs second which you use less and requires full charge every alternate day (or to phrase in other way, first is almost completely discharged by evening, second is half discharged). So the theory goes that second phone battery will last double the time than first.
2. Every battery articles you read, you will find recommendation to charge battery in specified current or usually slow charging. Today's battery technology should be immune to this but I still turn fast charging off. It is likely that not all the batteries are immune.
3. Heat is bad for battery. Some wireless chargers heat up. The TYLT VU that I use get uncomfortably warm when I place phone vertically (possibly coils do not align and multiple of them gets activated). Heat build up is there during fast charging too. If you play CPU intensive games and charge at the same time, phone gets warm. All this heat is working negative to the life span of battery.
4. Lithium ion batteries have less chemical stress when they are not fully charged or fully discharged. If you research you will find articles telling one to keep battery between 40% to 90%. Hence I usually do not charge to 100% and if I do, I watch or play games to bring battery level down. Search for best charge level to store lithium ion batteries, I think it is from 45% to 50%. This I guess keeps batteries at the least chemical stress state. So do your maths if you are type who likes to keep battery at 100% charge at all the times.
As you can see there is no straight answer to this question. Battery life is function of all these factors.
Added: I didn't read full article but you can check this link which speaks about impact of heat and leaving battery to full charge state.
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
Thanks for everyones input on this!
By the way, not sure if it has been mentioned, but this is a pretty cool read:
http://www.androidpolice.com/2017/0...ill-degrade-less-quickly-than-the-galaxy-s7s/
So looks like the S8 won't deteriorate as much over time!
I got the OEM samsung convertible fast charging pad but it doesn't come with a wall plug as I read somewhere (I guess thats just us in the UK getting screwed over yet again). The manual says "Use only Samsung-approved chargers that support fast charging (9v/1.67A, 9v/2A, 12v/2.1A).". So I need a wall plug that will be able to provide the fastest charging speeds from it (which I am guessing is one that does 12v/2.1A??). I dont think all the standard plugs with 2.4a sockets are going to do it right? The "30w" RAVpower one that craigdamey linked says it can do 12v/2A but only for QC3.0 (which I obviously wont get since its just being plugged straight into the charging pad), otherwise its 5v/2.4a. Not sure what one to get now. Theres an Anker 24w one but that says 2.4a per port (I know little about electrics and how these things work!).

Battery Estimate declined significantly seemingly after using USB headset adapter.

So I got an adapter to use a wired headset with my phone, it's one of those that allows for both headphone use and charging, though you need to plug in both, but I notice after I tested them out, my estimated battery drain declined all the way down to 9 hours remaining from a charge of 89 percent.
It used to be anywhere from 23 hours to a whole day, did I just break my battery? I'm not in a position where i can replace it if it goes wrong, especially since I just got this a month ago.
Checked it and it doesn't show any apps sucking power, I also disabled various bloatwares to make sure it would run smoothly.
I only had this phone since December and I made sure to charge it when needed, keeping it at around 40-80% charge as much as I could.
Phone is a OnePlus 8 5G, battery drain before was about a whole day before I needed to charge unless I were watching videos, and even with that it still lasted a good while.
It's not a good idea to use and charge the phone as it disrupts the charging curve*. If the screen is off and the device power usage is minimal like listening to music on bt does not interfere with normal charging, at least on my 10+.
Give the phone it's quiet time to charge.
Limit charges to 80% preferable 70% and discharges to 30% preferably 40% to maximize battery life.
Avoid going under 20% or full charges to 100% as it needlessly stresses the battery.
Li's love short, frequent midrange usage like from 40-65%
Li's hate high heat (>100°F) and high cell voltages ie >90% charge.
Avoid charging below 72°F as it can cause Li plating which will permanently degrade it.
Never attempt to charge if below 32°F.
*if you're drawing power whilst charging the device you can not gauge its actual battery capacity. It will charge much slower or maybe not at all.
Stop that you!
Take a 10 or 15 minute break and let get it take a charge.
blackhawk said:
It's not a good idea to use and charge the phone as it disrupts the charging curve. If the screen is off and the device power usage is minimal like listening to music on bt does not interfere with normal charging, at least on my 10+.
Give the phone it's quiet time to charge.
Limit charges to 80% preferable 70% and discharges to 30% preferably 40% to maximize battery life.
Avoid going under 20% or full charges to 100% as it needlessly stresses the battery.
Li's love short, frequent midrange usage like from 40-65%
Li's hate high heat (>100°F) and high cell voltages ie >90% charge.
Avoid charging below 72°F as it can cause Li plating which will permanently degrade it.
Never attempt to charge if below 32°F.
Click to expand...
Click to collapse
I don't use it when it's charging, it's a OnePlus with warp charging so I let it sit until it's either full or usually at around the 80 range.
It seemed fine until I tried using this headset adapter, I don't know if these can break the battery in any way so i don't know if just using this messed something up.
MarkiMarko2221 said:
I don't use it when it's charging, it's a OnePlus with warp charging so I let it sit until it's either full or usually at around the 80 range.
It seemed fine until I tried using this headset adapter, I don't know if these can break the battery in any way so i don't know if just using this messed something up.
Click to expand...
Click to collapse
If you have fast charging just use the standard fast charging cable to charge it not the daul use one.
The latter may not be recognized by the phone for fast charging, if so it will default to slow charging.
blackhawk said:
If you have fast charging just use the standard fast charging cable to charge it not the daul use one.
The latter may not be recognized by the phone for fast charging, if so it will default to slow charging.
Click to expand...
Click to collapse
Warp Charging works yeah, I'm returning the headset cable and replacing it, since i don't know if it messed my system up, and aside from that it's clunky to use.
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It was this thing.
do you think my battery is just messed up at this point or is it fine? Battery estimates used to show 23 hours to a whole day, but now it's down to 9 hours so I don't know if that messed up my battery somehow.
I doubt it messed up the battery especially if it's been only a week or whatever.
More than likely it's a misbehaving apk(s) causing the drain.
If your battery's rated capacity is 1000 mAh and you're only getting 400 mAh out of it, then you have a battery issue. How long it can run doesn't reflect battery condition unless the load is the same as before. So you need to scrutinize it further before making the assumption the battery has deteriorated.
I use two overlay apks (Accubattery is one) that let me see total current draw in near real time. I'm running Pie and doubt these will run in Q.
At idle my draw is an average of 150 ma or so with lows going down to 79 ma. If I see it averaging 300 ma with spikes going to 800 ma at idle I go looking for the cause.

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