Hello,
I have a micro usb charger that cam with my hp touchpad. looking at the label it seems like it supplies a 2A current as opposed to the 1A our phone takes. Can i use it on the G2x resulting in faster charging or will i damage the battery?
thanks,
Ismail
imoumni said:
Hello,
I have a micro usb charger that cam with my hp touchpad. looking at the label it seems like it supplies a 2A current as opposed to the 1A our phone takes. Can i use it on the G2x resulting in faster charging or will i damage the battery?
thanks,
Ismail
Click to expand...
Click to collapse
You can use it as long as it supplies the correct the voltage. I use a 2amp charger with my G2X and I love how fast my phone charges. The phone will only draw as much as it can.
A faster charge results in a hotter battery. Some people think fast charging the battery is also the cause of the infamous SOD (Sleep of Death). Keep an eye (or ahnd) on your phone and make sure it is not getting too hot while on the charger.
phburks said:
You can use it as long as it supplies the correct the voltage. I use a 2amp charger with my G2X and I love how fast my phone charges. The phone will only draw as much as it can.
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Click to collapse
The hotter the battery goes, the shorter the battery life span will result as li-ion battery doesn't quite like in hot temp. Never tried a 2A charger to charge my G2X, so I would not know. But I am using a 1A charger to it and it works great If 2A charges does not cause the battery to go too hot, it should be fine.
I've been using this charger since May with no issues. The battery will only draw as much as its capable of drawing. As long as the voltage is the same as the stock charger then there is no issue. You could connect it to a 5 amp charger and it would still only draw the 1.x amps its designed to draw.
Going too low on amperage is where you have to be careful.
thanks for the replies, turns out that 2A charger is 5.3V as opposed to the 4.8V LG charger...
phburks said:
I've been using this charger since May with no issues. The battery will only draw as much as its capable of drawing. As long as the voltage is the same as the stock charger then there is no issue. You could connect it to a 5 amp charger and it would still only draw the 1.x amps its designed to draw.
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Click to collapse
+1 on that, LG may be dumb, but they're not dumb enough to let their phone overload with un-needed electricity.
Related
not sure if this is just a coincidence, but I did something by accident that has has improved my battery life. After trying many tips and apps like Battery Dr+ and with modest results. I tried charging with the HP touchpad charger that I recently got. It puts out higher voltage than the standard USB AC adapters. To my surprise , my battery charges super quick and holds a charge even better. Again, it could just be nothing, but my Triumph is experiencing extra battery life as well from the touchpads charger. Just thought I'd throw it out to see if anyone has any thoughts on it.
We should ask the mythbusters lol
Sent from my Droid Charge 4G running Gummy Charged 2.0
USB is 5V, so I'd like to know how it is putting out more than that without damaging anything. Also, as I've stated numerous times (does anyone ever read around here?), the amperage output listed on the charger will have almost no effect on how fast the phone charges. The only time it will affect it is if the output amperage is less than what the phone will accept and the charger will limit output, but I doubt any charger with a power output below what the phone will take would be complex enough to do that.
Your phone will detect if you are getting power from a USB port or the stock charger. It will accept higher current with the stock charger. If you are charging from other charger, it will charge slow. To fix that, buy a new and cut open your USB cable. Short the 2 data cable.
orateam said:
not sure if this is just a coincidence, but I did something by accident that has has improved my battery life. After trying many tips and apps like Battery Dr+ and with modest results. I tried charging with the HP touchpad charger that I recently got. It puts out higher voltage than the standard USB AC adapters. To my surprise , my battery charges super quick and holds a charge even better. Again, it could just be nothing, but my Triumph is experiencing extra battery life as well from the touchpads charger. Just thought I'd throw it out to see if anyone has any thoughts on it.
Click to expand...
Click to collapse
The stock charger is rated at 5.0V/1.0A.
What is the HP Touchpad charger rated at?
I too have an HP touchpad and have noticed quicker charge times. Not sure about battery life though since it varies on my use. I cant use my samsung charger to charge the Touchpad, it says its not powerful enough.
Ted A said:
The stock charger is rated at 5.0V/1.0A.
What is the HP Touchpad charger rated at?
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Click to collapse
from what i read, the HP charger is 5.3/2.0 Amps.
Not really sure why this would make a difference, since usb voltage is standardized and the kernel controls how much amperage goes to the phone. I once thought my Gtab charger did this, but imnuts pointed all the above facts to me.
Sent from my Droid Charge running GummyCharged 2.0
I've noticed that charging with 500mah charger, charges the battery MUCH slower than a 1000mah (1amp) charger, which charges really fast. I'll need to time it, but I'm thinking the 1000mah charger charges the stock battery in less than 2 hours, where as the 500mah charger takes many hours, I usually let it charge overnight.
My question is, is there any performance gain to slow charging vs fast charging? ie: slow charging giving a deeper charge, vs fast charging?
any opinions?
i use a 2amp charger i had already that fully charges the O3D in around half an hour/45 mins. get the same runtime whether i use that or the stock charger.
hefonthefjords said:
i use a 2amp charger i had already that fully charges the O3D in around half an hour/45 mins. get the same runtime whether i use that or the stock charger.
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Click to collapse
Any chance of a link to this charger, I'd really like that sort of charging speed.
Pete
My guess would be anything that would charge an iPad... those require like 2.1amp, so that would be a 2amp usb charger.... I've seen 2.1amp home chargers, car chargers, etc... all because of the ipad I'm guessing.
Its not that simple. Any device that uses USB for charging can only pull 500ma, that's a universal agreement. To get around this each manufacturer uses a method of "informing" their device that it is connected to a charger that can supply more current (HTC shorts the data leads in the supplied charger I don't know what LG does). I have a 1amp car charger but it still only gives 500ma but the genuine LG charger gives an amp because the phone "knows" it can supply more.
I'm going to stick a test meter into my LG chargers over the holidays to see how the data leads are connected.
Pete
Sent from my LG-P920 using xda premium
The charger i have is a noname brand. I bought it from walmart for 6 quid. It also came with a 2amp car charger and a micro usb cable.
Micro usb cables are not standardised like that. Ive never heard of such a thing at all. As far as i know most phones will "fast charge" if they dont detect a data connection and dump as much current as they can into the battery so you can pretty much present them with whatever current you like and the charge time will just get faster. There is probably a hardware limit to that somewhere in the charge circuit but i dont know what the limit is. 2amps is the highest power usb charger ive seen but its not exactly aomething i regularly keep an eye out for.
Sent from my LG-P920 using xda premium
Slow charging is always better as this will allow the optimal number of battery cycles before the battery's capacity will start to degrade.
So if you only ever slow charge then your battery will have a longer life cycle.
i have bought tablet few days ago and i got usb charger with it (i mean a charger with usb port at end)
that charger have output of 5v and 2000ma
stock samsung charger have output of 5v and 700ma so i thought that if i can use that charger maybe it will help to charge my phone very fast as it have output of 2000ma.
can i use that charger with my galaxy r? can it damage to my phone or it's battery?
xlm13x said:
i have bought tablet few days ago and i got usb charger with it (i mean a charger with usb port at end)
that charger have output of 5v and 2000ma
stock samsung charger have output of 5v and 700ma so i thought that if i can use that charger maybe it will help to charge my phone very fast as it have output of 2000ma.
can i use that charger with my galaxy r? can it damage to my phone or it's battery?
Click to expand...
Click to collapse
It would not be recommended as it may actually damage the battery or even the charging circuit which charges the battery in your R if it can't withstand the higher rate of charging.
'cooleagle' said:
It would not be recommended as it may actually damage the battery or even the charging circuit which charges the battery in your R if it can't withstand the higher rate of charging.
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Click to collapse
thanks, i will stay away from that tab charger don't wanna damage my phone
A higher amp output should be ok.
A higher voltage is the one you should be worried about.
s4sixty said:
A higher amp output should be ok.
A higher voltage is the one you should be worried about.
Click to expand...
Click to collapse
But cooleagle said maybe it can damage battery and/or charging circuit
Sent from my GT-I9103 using XDA
Simple Guidelines When Buying a Charger
Use the correct charger for battery chemistry. Most chargers serve one chemistry only.
The battery voltage must agree with the charger. Do not charge if different.
Within reasons, the Ah rating of a battery can be higher or lower than specified. A larger battery will take longer to charge than a smaller one and vice versa.
The higher the amperage of the charger, the shorter the charge time will be. There are limitations as to how fast a battery can be charged.
Accurate charge termination and correct trickle charge prolong battery life.
When fully saturated, a lead acid charger should switch to a lower voltage; a nickel-based charger should have a trickle charge NiMH; a Li-ion charger provides no trickle charge.
Chargers should have a temperature override to end charge on a malfunctioning battery.
Observe the temperature of the charger and battery. Lead acid batteries stay cool during charge; nickel-based batteries elevate the temperature towards the end of charge and should cool down after charge; Li-ion batteries should stay cool throughout charge.
Souce : http://batteryuniversity.com/learn/article/all_about_chargers
One more reason why we should be extremely cautious when using other chargers is that when using the charger provided by Samsung I have observed that the charger cuts off the supply to the battery when the battery reaches 100 %.
It may not be the same when using other chargers which will lead to over charging the battery. This continuous over charging can reduce the life of the battery.
Lastly you can experiment as much as you want ( BTW that's why most people are on this forum ) its your decision, but see to it that you are not damaging the battery or the handset in the process.
Its not the charger that cuts off power supply to the phone.
It's the memory chip inside the battery that supplies information to initiate the cut off.
That is why it's highly recommended to use original batteries in ur phone so that the phone will not burst into flames !!!
A Smart Charger, on the other hand, has a built in circuitry that does the cutting off and after that continues to trickle charger the batteries to maintain the charge on the batteries. U can usually see this for car chargers.
These chargers cost way more than ur average Samsung charger.
Cheers !
thanks for guys for giving your valuable opinions
today i thought i should give it a try
i used stock micro usb to usb cable to connect with that charger and plugged in but something weird happened
when i plugged in charger screen lights up with with notification tone as usual but touch screen stopped responding
both touch screen and touch sensitive buttons stopped working only home button was working after removing that charger all things started to work again normally really strange
xlm13x said:
when i plugged in charger screen lights up with with notification tone as usual but touch screen stopped responding
both touch screen and touch sensitive buttons stopped working only home button was working after removing that charger all things started to work again normally really strange
Click to expand...
Click to collapse
Don't use that one again buddy !
'cooleagle' said:
Don't use that one again buddy !
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Click to collapse
yeah for sure i love my phone
So the One X comes with a 1.0 Amp charger. The charger would not fit(too long) in the spot where I have been using my Samsung charger.
I compared the two and saw the only difference is the .7 A to 1.0 A. looked up if it was ok to use. Some even reported longer battery life with the slower charger. Makes some sense just lasts longer.
Maybe I am crazy but it seems like I get better battery life from the .7 charger.
I have went back and forth a few times....But of course not enough days to really tell.
thoughts?
Definitely overthinking it. It will just charge slower.
eallan said:
Definitely overthinking it. It will just charge slower.
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Click to collapse
Yep, what he said.
To think of it another way, you can charge your phone via a USB connection to your computer, but it's much slower. This is because USB only provides 0.5 (or maybe it's 0.2?) Amps.
However, going with an adapter that's HIGHER than 1.0A could cause damage.
In the long run, slower charges will likely make your battery last more cycles. But on a per-cycle basis, it should not give better battery life.
If you run your battery down, the smaller charger (and definitely the case for PC USB because they max out at 500ma) may not be able to charge at all. In normal cases, it is fine.
Higher than 1a won't damage anything. .7 might not actually charge the battery 100% depending on if the phone thinks it is usb(500ma charging mode) or ac charger(wont charge properly).
Sent from my Desire HD using XDA
c5satellite2 said:
Higher than 1a won't damage anything. .7 might not actually charge the battery 100% depending on if the phone thinks it is usb(500ma charging mode) or ac charger(wont charge properly).
Sent from my Desire HD using XDA
Click to expand...
Click to collapse
This. The voltage is what really matters. The phone won't draw more than it can to charge. If it draws 1A while charging and you put it on a 2A charger, it will pull 1A. But if the voltages don't match up and there isn't a protection circuit for that type of problem, you could fry the electronics with a higher amperage.
100% on the voltage! That is the important one. .7a shouldnt be recognized as a real ac charger resulting in the phone thinking it is USB 500ma charging mode which is the same as pc, slow. If the device thinks the .7a charger is ac charging mode, the battery probably will never charge to 100%. In fact if you were at 100%, and the phone was in ac charging mode with a .7a charger, it would drain your battery! More than 1a, the phone will only draw what it is capable of. Some aftermarket chargers will still charge in USB 500ma mode because the phone won't recognize them as ac charging 1a mode. I had an old HTC charger once that did funny things to my inspire, it would open navigation every time it was plugged in(thought it was a car dock I guess). Use real OEM chargers if possible. They will charge the fastest, and you won't have issues. The real HTC chargers at 1a are much faster than the aftermarket chargers I have tried. I have a good Kensington 1a car and wall charger, and the HTC blows them away as far as speed!
Sent from my Desire HD using XDA
c5satellite2 said:
100% on the voltage! That is the important one. .7a shouldnt be recognized as a real ac charger resulting in the phone thinking it is USB 500ma charging mode which is the same as pc, slow. If the device thinks the .7a charger is ac charging mode, the battery probably will never charge to 100%.
Click to expand...
Click to collapse
Actually, AC charging mode or PC USB mode is not determined by amprage or volts (all use 5v). It is determined by how the data pins are terminated. Most non-Apple chargers terminate data pins the same way so they will be recognized as AC charger. Apple chargers are the ones that may not be recognized by the phone as AC chargers because Apple terminates data PINs different than everyone else. Regardless of the charging mode, they all can charge to 100% if they can initiate the charge.
LiIon battery charging circuitary is much more complicated than your normal AA chargers. It is regulated internally so that slightly variations of input voltage won't affect the charging. It has to internally control the charge process precisely so that it can terminate the process at the exact moment (overcharging results in explusion).
Input power supply being 0.7A or 1A has no bearing on the level to which the battery is filled. Even input voltage has no bearing! The only impact to the system will be the rate at which you can charge.
Not true. Some chargers make the device think it is a real ac charger, but do not provide enough to charge to 100%. And yes it has to do with pinout. Some ac chargers aren't recognized properly and results in USB charge mode even if they have more than 500ma available. Even if your pc provides more than the USB standard of 500ma, it will only draw 500ma and charge slowly.
Don't mess with the voltage, it WILL damage your device! The previous post should be ignored, and deleted.
Sent from my Desire HD using XDA
I use my touchpad charger and its 5.3v instead of 5v and its definitely charging my phone faster than the HTC stock charger. No affect on battery life though.
Sent from my HTC One X using XDA
5.3v or 5v is ok because there is a little leeway, and I'm sure the 5.3 isn't exactly 5.3 anyway. If it was, the extra .3v is probably within range, and is not blowing things up, just stressing them a little more, making some heat, and wearing them out slightly quicker.
Try a 12v charger, see what happens. LOL.
Seriously the 5.3v might actually be closer to 5v than a charger labeled 5v and therefore could result in better charging. Remember, input voltage varies as well. Your electricity could go under 100v or as high as 120v. Our electric grid is not very consistent. Supply is constantly being adjusted to meet demand, resulting in widely varying voltages. I have seen it dip into the low 90v range on hot summer afternoons, and rarely in the 115v-120v range where it should be. The 5.0 volt charger would result in the best performance if it was actually putting out a TRUE 5v. A high quality charger, with high quality, consistent, 115v input power that is properly rated is ideal. In reality it doesn't exist.
5.3v close enough, might actually be better. One way to tell, put the voltmeter on it!
If you have access to volt/multimeter, could you post your ac voltage at the outlet and the dc voltage coming out of the 5.3v charger. Could be interesting. How many amps is the charger also? Might have to get one.
Sent from my Desire HD using XDA
Dont have that but this is the link to it
http://www.amazon.com/gp/aw/d/B0055QYJJM
I'll provide the exact specs when I get home.
Sent from my HTC One X using XDA
Can you clarify what you mean by this?
c5satellite2 said:
Not true. Some chargers make the device think it is a real ac charger, but do not provide enough to charge to 100%.
Sent from my Desire HD using XDA
Click to expand...
Click to collapse
Either an input power provides power or it doesn't. The only reason it would "stop" is if the charger in the phone runs out of headroom and I have yet to see this with any AC/DC or USB supply.
The whole issue of whether or not the phone identifies the power supply is an entirely separate discussion. But once it does identify and begin charging it will do so until completion.
---------- Post added at 12:13 PM ---------- Previous post was at 12:05 PM ----------
c5satellite2 said:
The 5.0 volt charger would result in the best performance if it was actually putting out a TRUE 5v.
Sent from my Desire HD using XDA
Click to expand...
Click to collapse
This is not true. Take two AC/DC adapters...
A) [email protected] = 4.24W
B) [email protected] =4.00W
The HTC One X has an internal switching charger with dynamic input power limiting. So it will actually be able to draw MORE current from Adapter A than Adapter B. Also, because the charger in the One X is a switching charger there will be negligible extra heat generated and no excessive wear and tear.
how did you know?
racerex said:
Can you clarify what you mean by this?
Either an input power provides power or it doesn't. The only reason it would "stop" is if the charger in the phone runs out of headroom and I have yet to see this with any AC/DC or USB supply.
The whole issue of whether or not the phone identifies the power supply is an entirely separate discussion. But once it does identify and begin charging it will do so until completion.
---------- Post added at 12:13 PM ---------- Previous post was at 12:05 PM ----------
This is not true. Take two AC/DC adapters...
A) [email protected] = 4.24W
B) [email protected] =4.00W
The HTC One X has an internal switching charger with dynamic input power limiting. So it will actually be able to draw MORE current from Adapter A than Adapter B. Also, because the charger in the One X is a switching charger there will be negligible extra heat generated and no excessive wear and tear.
Click to expand...
Click to collapse
Htc has input power limiting? Internal switching charger? Where did you get this information?
The plugpack will be voltage regulated(to protect from overvoltage with under designed load) not ampage regulated.
The battery charges via voltage float, the higher the voltage the quicker the charge, but the voltage is regulated anyways so there is no fast and slow charge. It is charging or it's not. The charge circuit steps up and down the voltage to give fast/slow charge not the plugpack in mobile phones.
1.0a versus 0.7a just means the rated output is lower. It does not change the load. All that happens is the 0.7a will be running over its rated output which results in running hotter and potential running undervoltage.
Running 0.7a is not good if the battery charge circuit will draw 1.0a by design. Your plugpack just becomes a firerisk.
You should always match the designed specifications, eg 12v 1.0a.
The device expects a 12v(or close) input and should be able to draw 1.0a without issue.
If you over or under volt the charge circuit it could blow up, if you over draw the supply it might melt.
is it ok to charge 0.7A battery with 1.0A charger
omer101 said:
is it ok to charge 0.7A battery with 1.0A charger
Click to expand...
Click to collapse
Did you not read the thread?
Sent from my Evita
Anyome using a 2A charger instead of a turbo charger?
Like a samsung 2A charger
Or a 2A power bank?
Any issues?
Because 1150 mah is too slow
I was also wondering this.I tried it with my 2,4a ipad charger once and it was charging twice as fast, but i dont know if this is good for the phone. Using the normal charger again to be sure.
With normal 1.2A charger, it takes almost 3+ hours for my phone to fully charge. I used my Galaxy Note 10 charger which is 2A and it got charged in 2 hours. I read it in the forums that even with 2A charger, we cant take the advantage of turbo charging as it will need a charger of 2.4A.
I dont know how 0.4A will make a difference but still, my knowledge is limited in this case and wouldnt want to comment on it.
The charger has to be Qualcomm QC 2.0 certified (that's a specification) to take advantage of the turbo charge mode. The amps put out by the charger is kind of secondary in this situation as the charger and phone both need to be "talking on the same page" i.e. QC 2.0
At that point (charger is QC 2.0) the special circuitry kicks in and goes into turbo mode. So its a little more involved than just throwing more amps at the phone. If you google Qualcomm QC 2.0 specification then it will give you a better idea of what it is all about.
Sent from my XT1563 using Tapatalk
Turbo charging steps up to 9v and 12v depending on what wattage the phone can handle.
I think our phones are 15w and the Style is 20w or so.
I can't get my phone to charge faster with a 2amp charger though, only my turbo charger.
I used digitech 2.4amp charge ans works like a charm superb....
It isn't causing any issues? Like battery degradation?
Sent from my XT1562 using Tapatalk
I've been using my Moto turbo charger every night for a couple weeks now and haven't noticed any issues. The phone doesn't seem to let the battery get over 35'C when its charging, so I don't imagine it'll damage the battery.
Think I may get a car charger soon, sometimes I forget to charge at night so it'd be cool to get a full charge on the drive in.
Battery will very likely not last as long when doing fast charging always compared to "normal" charges
Any fact to back that claim?
Im using a Belkin 2.1A charger, no problems whatsoever.
So what's conclusion is it safe to use 2a charger without doing damage to battery
prashu#1 said:
So what's conclusion is it safe to use 2a charger without doing damage to battery
Click to expand...
Click to collapse
I'm using a 3a charger and it's fine
You can't harm a battery with a higher amperage output charger. The phone will only consume what it is able to. If the voltage was higher (excluding quick charge adapters) then yes that will do damage, but that's a strange situation as no charger should do that unless it's quick charge.
That being said, on hand I do have a feeling that quick charge can actually do long term damage if used a lot but on the other hand, it seems to limit the maximum temperature to around 38'C. Above 40'C can cause irreversible damage to the cell. I'm using a car charger now and when the phone is in use, it gets up to around 38 or 39 and it cuts back on the charging current.
Interesting article explaining Qualcomm, fast charge, turbo charge using all the same technique under different names. They all use the same Qualcomm technique.
http://www.androidpolice.com/2015/0...-need-to-know-about-charging-your-smartphone/