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Hello everybody,
Since the best phone ever died (or better: drown) on me (HTC Universal OFCOURSE!). I had to look for a replacement and TP2 seemed like the best of bad things. LOL!
I noticed that the wall charger had a 5V -1A(mpere) output. My (standard) car charger has a 5V - 0,5 A output. So I got the notice "your current power supply... not enough ...close some ...."
Besides the fact that e.g. tomtom uses more than the charger can give, i was wondering :
is it BAD for my battery charging at 0,5A instead of 1A ?
how much A does a laptop give when charging my TP2 trough USB port?
HAs this got sth to do with the fact that in some programs there is an option like "do not charge while connected to PC?"
I know this is more of an offtopic question, but I hope there is somebody with enough electrical knowledge to help me out! I posted it also in the general section, but since it is an TP2 issue maybe it is better placed here.
Sorry for possible inconvenience!
THX!
Kjoere
Each USB port churns out 5V at 500mA max (i.e., 0.5A).
Thank you mesquire,
Do you have any idea what the effect is of charging with different AMpere?
E.g. my BT-earphone has 180mA - so better not charge this through laptop I suppose (too much is never a good thing) - but the otherway charging with less A, that I haven' got a clue ...
C.
You can face problems that it starts to charge, but stops after x minutes.
I have replaced my carcharger with the original HTC CC C100 which delivers 1Amp.
Never had any charging problems with that one.
Hi ronh,
replacing is ofcourse an option, but I was mainly wondering what the possible effects could be on the battery. On a Dutch site I found that Lithium-Ion batteries have no memory effect so all ampères below should be "theoretically" be ok.
Greetz,
C.
Curehead said:
Thank you mesquire,
Do you have any idea what the effect is of charging with different AMpere?
E.g. my BT-earphone has 180mA - so better not charge this through laptop I suppose (too much is never a good thing) - but the otherway charging with less A, that I haven' got a clue ...
C.
Click to expand...
Click to collapse
You can expect longer charge times through USB port than with the supplied charger.
A USB flash drive draws only about 100mA from the port, so the port should provide just enough power to charge your Bluetooth handsfree (but do make sure the device needs 5V to operate or you could fry it).
Hi mesquire,
thanx again, but I am still in the dark. You seem to make a difference between a USB port (500mA) and a USB flash drive (100mA), but i don't understand this (maybe my english isn't good enough ).
Do i understand you correctly is i say that the device connected also has sth to say in how much power comes out?
I thought the ampere is sth like a 'flow of current' and when more comes out than wanted by the receiver, it euh likes ... flood (too much current) the device (and does damage). Does this make any sense?
Ciao,
Kjoere
Your device will only pull the amount of amps required,
as long as the input voltage is the same you should be fine.
you will be OK to charge the phone at 500ma however this will take longer to charge,
I charge mine using my laptop regularly - that matches your car charger at 500ma,
you may find however, when using gps etc, that you are draining more power than being supplied by the charger and the battery will begin to discharge.
hope this makes sense,
Steve
Curehead said:
Hi ronh,
replacing is ofcourse an option, but I was mainly wondering what the possible effects could be on the battery. On a Dutch site I found that Lithium-Ion batteries have no memory effect so all ampères below should be "theoretically" be ok.
Greetz,
C.
Click to expand...
Click to collapse
they do have a memory, but the software/charger will not let you damage the battery.
anyway, assuming the battery can be charged at 1C (up to 2C is possible with some batteries, but can adversely affect battery life) you can theoretically charge the battery at a maximum of 1.5 amps safely. (assuming 1,500Mah battery)
TP2 doesn't have li-ion, it's a LiPo which doesn't have memory. They do have a limit on how many times they recharge as well as a shelf life, figure on buying a replacement every 1-2 years I'd guess.
fraser said:
TP2 doesn't have li-ion, it's a LiPo which doesn't have memory. They do have a limit on how many times they recharge as well as a shelf life, figure on buying a replacement every 1-2 years I'd guess.
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are you sure ?? i went to the power settings and it says main battery: Li-ion
which i presume stands for lithium ion ?
Lithium Ion doesn't have memory.
Nickel Cadmium and Nickel MetalHydride have meory: i.e. if you charge it when it's at 70%, the next time it gets down to 70% it will think it's empty as it "remembers" that as the charging point.
With Lithium Ion you can charge them at any moment, ergo no charge. Adn they too have a life of about 500 charges.
fraser said:
TP2 doesn't have li-ion, it's a LiPo which doesn't have memory. They do have a limit on how many times they recharge as well as a shelf life, figure on buying a replacement every 1-2 years I'd guess.
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The battery in my TP2 says LI-ION on the back, so perhaps some are LI-Po and some LI-ion? may go some way to explaining why some people are happy with their battery life and some not so.
Tom
Shouldn't really matter truth be told. As long as they have a rating of 1500mah they should last the same amount.
frogfoot said:
The battery in my TP2 says LI-ION on the back
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Are you sure it doesn't say "Li-ion Polymer"? There is a distinction, particularly in cost!
fraser said:
Are you sure it doesn't say "Li-ion Polymer"? There is a distinction, particularly in cost!
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Click to collapse
my australian TP2 says Li-ion in big letters, and Li-ion Polymer in the fine print
The difference is in cost, and weight, but the end result in a cell phone or pda is more or less the same due to the low power demands.
My TP2 battery says Li-ion on the actual label itself.
thanx
rosebud said:
Your device will only pull the amount of amps required,
as long as the input voltage is the same you should be fine.
you will be OK to charge the phone at 500ma however this will take longer to charge,
I charge mine using my laptop regularly - that matches your car charger at 500ma,
you may find however, when using gps etc, that you are draining more power than being supplied by the charger and the battery will begin to discharge.
hope this makes sense,
Steve
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Click to collapse
Hi Steve,
Thx man! So now i Know i only have to worry about voltage. So I can charge my earphone in my car (which only wants 180mA) and my phone (1A). You are right that it sometimes (navigation, BT) uses more power than it gets (500mA), I get some message saying that by the way.
Any way thanx a lot !
Cureheaded
Reference Thread:
http://forum.xda-developers.com/showthread.php?t=833602
Apparently, according to the above research, although the EVO charging cable is rated at 1 amp, the phone is only charging at 650 ma. This adds an extra 45 minutes or so to full charge times.
This would make sense in the same way that 3 ghz cpu's can easily be pushed to 4 ghz by those who know what they are doing. The 650 ma is just to "idiot" proof the battery and to provide some wiggle room for "defective" batteries to still function safely.
HERE'S MY QUESTION:
Is this a hardware based limitation or software based? Could someone write a kernel or app that would disable this limitation allowing us to charge at full speed? I am NOT a programmer so have no idea if this is feasible but would appreciate input from those who would know.
Thanks in advance.
mitchellvii said:
Reference Thread:
http://forum.xda-developers.com/showthread.php?t=833602
Apparently, according to the above research, although the EVO charging cable is rated at 1 amp, the phone is only charging at 650 ma. This adds an extra 45 minutes or so to full charge times.
This would make sense in the same way that 3 ghz cpu's can easily be pushed to 4 ghz by those who know what they are doing. The 650 ma is just to "idiot" proof the battery and to provide some wiggle room for "defective" batteries to still function safely.
HERE'S MY QUESTION:
Is this a hardware based limitation or software based? Could someone write a kernel or app that would disable this limitation allowing us to charge at full speed? I am NOT a programmer so have no idea if this is feasible but would appreciate input from those who would know.
Thanks in advance.
Click to expand...
Click to collapse
Well from my bit of micro-electronics experience, it is usually hardware done for this sort of thing, but until someone really checks all possible routes it is hard to tell.
SUPER EDIT:
All hail pete...
spankmaster said:
I noticed the R/C guy posting later in the thread saying there is no reason not to charge them faster. There is no reason to trust me over him but i can assure you he is wrong. There are at least 2 threads already here about people wanting 1 amp chargers, getting them, and then complaining about how battery their battery life becomes. So take whatever advice you'd like, but id recommend saving the life of your battery over 45 minutes.
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Let's see if I understand this correctly: You've read in a couple of threads that other people have claimed that they've suffered a loss of capacity because they've charged their Evo batteries with a 1A (1000mA) charger, am I right so far? And because you read this you know enough to tell someone who has years of hands-on experience with LiPo batteries and chargers that he's wrong. Did I get that right?
Whatever, dude. I certainly don't need to argue with you, but I'm compelled to point out a couple of things for other people's sake like the simple fact that the HTC wall wart that comes in the box with a new Evo has a 1A output.
And then there's the fact that a 1C charge rate is the de facto standard in the battery industry for LiPo batteries. Rather than make you do the math, a 1C charge rate for a 1500mAh battery is 1.5A and a 1C charge rate for a 3500mAh battery is 3.5A so charging either of 'em with a 1A rate is well below the most recognized charge rate in the industry.
But I must be wrong if you say so. And if I'm wrong then all the scientists and engineers who design LiPo batteries and chargers must be wrong too.
So I'm in some pretty good company, don't you think?
Pete
well, looks like my ass has been handed to me by science lol Sorry if i sounded insulting, you obviously know more than I. Just trying to give my best 2 cents from what ive heard, and i honestly have heard from a relatively large crowd that 1 amp charging does seem to hurt they're batteries. I thought maybe 1 amp or faster would be fine for the larger cells, maybe 2500 or 3500 or up, but maybe just the smaller cells like in most cell phones couldnt handle that fast a charge as well. No reason to argue with the science of it all though. Also, i do know that the wall charger that comes with the phone is 1 amp output, but many chargers say that but dont always output it depending on the device hooked up (the device not pulling that much, obviously not saying it knows whats plugged in). Does the evo actually charge a full 1 amp from it?
Although I appreciate everyone's input I think you are missing the point of my question. It is not "should we charge at 1 amp?", but "why are our 1 amp chargers only charging at 650 ma?".
If EVO's are rated to charge at 1 amp and the charger is 1 amp, why is it charging at much less. This sounds more like a software thing than a hardware thing. Why would EVO publish that its rated to charge at 1 amp when it cannot physically do so?
mitchellvii said:
Although I appreciate everyone's input I think you are missing the point of my question. It is not "should we charge at 1 amp?", but "why are our 1 amp chargers only charging at 650 ma?".
If EVO's are rated to charge at 1 amp and the charger is 1 amp, why is it charging at much less. This sounds more like a software thing than a hardware thing. Why would EVO publish that its rated to charge at 1 amp when it cannot physically do so?
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Well one semi logical explanation is they limited it to keep the heat levels down to keep components such as the processor from overheating while charging, or they just wanted to do it to piss some people off.
mitchellvii said:
Although I appreciate everyone's input I think you are missing the point of my question. It is not "should we charge at 1 amp?", but "why are our 1 amp chargers only charging at 650 ma?".
If EVO's are rated to charge at 1 amp and the charger is 1 amp, why is it charging at much less. This sounds more like a software thing than a hardware thing. Why would EVO publish that its rated to charge at 1 amp when it cannot physically do so?
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Click to collapse
I want to be real clear about something before I throw any more info into the mix: My info is based on a mixture of my experience with LiPo batteries and charging circuits, my own observations during the time I've owned my Evo, and anecdotal evidence I've collected in this and other forums about the Evo. In other words, my info is based on educated guesses rather than hard facts and with that in mind ....
The Evo does seem to regulate the charging current (rate) to the battery to around 650mA. If you use a power supply that is incapable of supplying 650mA (like a USB port on a computer) then the charging rate will be less, but I haven't read any reliable evidence that suggests that a more powerful power supply will increase the charge rate. My own experiments seem to support that conclusion: I've charged my own Evo with my computer, the HTC 1A charger, a USB hub which can supply 2A, and a mobile charger rated at 850mA. The 850mA, 1A, and 2A supplies all take the same amount of time to recharge my Evo and the computer takes a little longer.
I've also read plenty of reports which suggest that the Evo also uses a mAh cap to limit the amount of charge it will accept before it terminates the charge cycle. It's important to understand the difference between charge amount and charge rate for this to make sense: A parallel example is gallons and gallons-per-hour: Gallons is an amount and gallons-per-hour is a rate. In the Evo's case, mAh (milliamp-hours) is the amount and mA (milliamps) is the rate.
Under normal conditions a LiPo charge cycle is terminated when the battery voltage reaches 4.2V per cell, but due to the volatile consequences of overcharging LiPos engineers usually build additional redundant safeguards into consumer electronics to protect consumers from themselves and a charge rate limit and a charge amount limit are often used together to that end.
So I'm not at all surprised to see evidence that both are used in the Evo, although I do think they erred a little too far on the side of caution.
Now if I had to guess (and I do), I'd say the ~650mA charge rate is hard-wired into the charging circuit and I'll be surprised if that can be changed with anything short of a hardware revision. The charge amount limit is another story, though. That is probably coded into the software.
And on that note, I'm done guessing.
Pete
Confuscius say ...
"It is better to guess and be found right, than to pontificate and be found wrong..."
EVO specs show that it should charge at 1 amp. The charger they give you with a new phone is a 1 amp charger and yet, in numerous threads we learn that people are only getting about a 650 ma charging rate.
THE CONSPIRACY THEORY (don't get excited, just tossing out ideas here - just because you are paranoid doesn't mean everyone really isn't out to get you )
There is something going on here that doesn't add up. Could it be that HTC could not get enough high quality batteries in time to ship and yet, all the specs had already been published? So they shipped some units with "non-binned" batteries and set the charge rate at 650ma to make sure they didn't blow up (lowest common denominator)? They also shipped the 1 amp chargers because they had already manufactured those with the idea the average Joe would never know the difference?
Think about it. It makes sense. Why else tell us it will charge at 1 amp with a 1 amp charger then limit it to 650 ma?
Could this be the reason why so many people with "identical" phones get such wildly different battery results? If this is true, HTC would be looking at one hell of a class action lawsuit.
Just noticed this:
mitchellvii said:
Why would EVO publish that its rated to charge at 1 amp when it cannot physically do so?
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Click to collapse
I don't believe that HTC or Sprint has published anything about charge rates. The only thing (that I've seen) that even remotely suggests a rate is the fact that the wall charger they include with the Evo has a 1A output.
There are lots of reasons why a device like a LiPo-powered cell phone needs to internally regulate the charging rate and human folly is right at the top of the list. Imagine how many people would charge their phones at higher and higher rates without ever even considering the consequences of doing so if all they had to do was buy more powerful wall warts. Imagine how many people have already tried!
And I should add that the consequences of charging LiPo cells at excessive rates includes big balls of fire. Go to YouTube and do a search for "lipo fire" if you'd like to see for yourself.
The other major consideration is the amount of electrical current that the circuitry and components in the phone can handle. Push too much current through 'em and they become heaters. Push a little more and circuit board traces start popping like fuses if the components don't fail first.
I imagine you're asking yourself why HTC would supply a 1A charger if the phone will only charge at 650mA (note: you folks are so predictable ) and the answer to that is pretty simple too: The phone can use that extra power (overhead) to power the phone while it's charging the battery. Without that overhead you'd never be able to charge the battery at the regulated rate without turning the phone off.
And that isn't guessing.
Pete
But Pete,
To my understanding, the EVO runs off the battery even when it is being charged. Any overhead from a 1 am charger would not power the phone but just not be used at all. The reason the phone charges during heavy use with a more powerful charger is simply that it is charging faster than the battery is draining.
No power goes directly from the charger to the phone. Try plugging your charger in with no battery and see if it works
mitchellvii said:
But Pete,
To my understanding, the EVO runs off the battery even when it is being charged. Any overhead from a 1 am charger would not power the phone but just not be used at all.
Click to expand...
Click to collapse
I saw a lot of evidence of that in Evo forums before I got my phone and I initially hypothesized that it was why some people were experiencing the rapid ~10% battery drop off if they didn't take the phone off the charger as soon as the light changed from amber to green. And that may, in fact, be true for some Evos but I've seen no evidence whatsoever that my phone works that way. I put my phone in the charging cradle at night with no regard to the charge level and I grab it at whatever random time I happen to need it the next day, and my battery is always fully-charged and I've never experienced the quick drop-off.
My phone also seems to take the same amount of time to top off the battery from a known charge level regardless of whether I leave 4G, WiFi, Bluetooth, and GPS on or turn them all off as long as I use the 1A wall wart.
Those two things have given me reason to question my own hypotheses. In fact, they seem to provide ample evidence to prove it wrong.
No power goes directly from the charger to the phone. Try plugging your charger in with no battery and see if it works
Click to expand...
Click to collapse
I've actually thought about trying that, but my job requires that I'm "reachable" at all times and I can't afford to experiment with my phone in ways which might brick it, regardless of how remote the chance is.
And the fact that the phone won't work via external power without a battery in it isn't hard evidence that the external power can only charge the battery. There are many reasons why it might not work including the possibility that the entire power management circuit in the phone requires some exciter voltage from the battery to work. That's actually a pretty common safeguard.
But the truth of the matter is I'm back to guessin' again.
Pete
spankmaster said:
The 1amp charging thing has been discussed many many times. its not a kernel limitation, but sort of a hardware thing. The evo has to be able to tell whether its being charged by a wall charger or a usb charger hooked up to a computer because usb ports CANNOT output a full amp. So on wall chargers and car chargers , even the ones with usb ports, there is a data lines are hooked together sending a signal to the phone that its charging from a more powerful source.
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Click to collapse
I think i might have actually answered your question there lol. Ever heard how weird ipod/iphone chargers are? its cause they have resistors on the data lines to signal the phone to charge, and chargers without them will not charge it. Similarly from what ive gathered, if you open up the charger you want to use, say a wall or car charger, you can bridge the two data lines together, and that will signal the Evo to charge at a full amp. you can use Spare Parts to see that it says charging via A/C to validate this. this has been the solution decided on so far and its very easy. hope i helped!
spankmaster said:
this has been the solution decided on so far and its very easy. hope i helped!
Click to expand...
Click to collapse
Where are you getting this information, spankmaster? Who has decided on this solution? I'd genuinely like to know because I'd like to follow the threads myself.
Have you tried this yourself with an Evo or are you hoping one of us will and let you know how it goes?
And FWIW, I'm not trying to be a smart ass. I really am interested in this but I must say that I'm a bit skeptical.
Pete
PGRtoo said:
Where are you getting this information, spankmaster? Who has decided on this solution? I'd genuinely like to know because I'd like to follow the threads myself.
Have you tried this yourself with an Evo or are you hoping one of us will and let you know how it goes?
And FWIW, I'm not trying to be a smart ass. I really am interested in this but I must say that I'm a bit skeptical.
Pete
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heres the thread my friend!
http://forum.xda-developers.com/showthread.php?t=767961&highlight=car+charger
The OP has some good info as well. And i did this myself about an hour ago to test and it indeed works.
spankmaster said:
heres the thread my friend!
http://forum.xda-developers.com/showthread.php?t=767961
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Click to collapse
That's a good find, spankmaster, but evidence still points to a a charging rate which is internally limited to around 650mA even when the phone detects an AC charger. Here's why I say that:
The majority of my own testing has been done on a Seidio Desktop Charging Cradle powered by a Seidio Micro-USB High Output Folding Travel Charger which I just now discovered has a 1.25A instead of a 1A output. Spare Parts already indicates (without any modification) Battery status: Charging (AC), Power plug: AC when I put my phone in the dock.
Now if this "Charging (AC)" condition would allow my phone to charge at the full 1.25A of the charger then it should take ~1.2 hours to charge a depleated 1500mAh battery. At just 1A it would take ~1.5 hours however the two times I deliberately did that as a test it took almost 2.5 hours to charge in the above-mentioned dock.
1500mAh divided by 2.5 hours = a 600mA average charging current but the actual current tapers off as the battery nears 4.2V so the maximum charging current over that 2 hour period was probably somewhere in the 640-660mA range.
The bottom line, at least as I see it, is that shorting the D+ and D- pins may cause USB chargers to charge at AC charger rates, but it doesn't seem to help AC chargers exceed the ~650mA maximum which is apparently hard-wired into the Evo.
The math says it.
I believe it.
That settles it.
'Course I'm still open to new ideas and I still have a glimmer of hope that there's a solution banging around in someone's head just waiting for the right "AHA!" moment.
Pete
ah ha, thats wierd. I think ill conduct a similar test of my own with the charger modified as they specified and see what my results hold. in the same thread there are people, or at least one or two guys, claiming to get a 45 minute charge, so their still might be something to it, or people are just being ridiculous lol. ill post back with my results!
spankmaster said:
in the same thread there are people, or at least one or two guys, claiming to get a 45 minute charge, so their still might be something to it, or people are just being ridiculous lol.
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To charge 1500mAh in 45 minutes would take a bare minimum of a 2A charge current. That's dangerously over a 1C charge rate and if they actually can charge at that rate they stand a good chance of making a smoking hole in something. And If they are doing that and getting away with it they're definitely reducing the number of charge-discharge cycles they'll get from their batteries by a huge amount.
Realistically, I don't think it's possible to force an Evo to charge at rates like that so they're either spreading fertilizer or the batteries were more than half-charged when they started.
Pete
ya, i thought the same thing about 45 minutes. i brought my battery (stock) down to 15% and plugged it into my modified charger and am gonna stay up to see how it does. Its a 99.9% chance its gonna charge exactly like you said. But i was just thinking about the thing about the ipod charging as well, cause the ipod will only charge with the resistors in the lines, but different resistances will tell it to charge at different rates, so im just checking for the .1% chance that bridging the two data lines might signal the phone ever so slightly different then the pre made chargers your using. like I said, one and a million, buts its always worth exploring, if not even just to prove your brilliance
1 HOUR RESULTS: at a solid hour it looks like a got to 65% indicating a 50% charge. so the the moment im at a 750mah average charge rate. but as you stated before, as the battery comes closer to a full charge, it tapers so it looks like it'll probably average out. ill update again for the Hour and a half point.
1.5 HOUR RESULTS: solid 80% after 1.5 hours (again, starting with 15% charge so a total of 65% charge during testing time). Thats 975 mA in 1.5 hours which puts us right on the money at 650mAh charging rate! (SHOCK AND AWW! Lol)
Conclusion, bridging the data lines didnt do diddly SQUAT! i mean, i didnt test the rate before hand, but it certainly isnt giving anyone any 1 amp charging.
And brain blast, wouldnt it be just as effective a method to test charger output by cutting open the cable and hooking a multimeter in the circuit? Actually, imma try that right now!
Hokay, so hooking up the multimeter in line made things really screwy, evo stopped charging and the current on the meter was going way up and down. Either im even MORE retarded than i though and forgot how to use my multimeter or this charger is dangerous and i dont wanna use it anymore cause that shouldn't happen like that lol.
So, back to the OP's question.....
no clue mi amigo! good luck though!
spankmaster said:
Hokay, so hooking up the multimeter in line made things really screwy, evo stopped charging and the current on the meter was going way up and down. Either im even MORE retarded than i though and forgot how to use my multimeter or this charger is dangerous and i dont wanna use it anymore cause that shouldn't happen like that lol.
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Did you place the meter in series (in-line) or in parallel (across) the +5/Gnd cables? For measuring current, it needs to be in series and you can fry circuits by placing it in parallel as it will present near-0 resistance, shorting all the voltage through the meter and straight back to the supply.
So i recently busted my default charger and started using one i bought, its not samsung brand, but lately i've been noticing that my battery dies quicker, does this seem look like normal battery life or is it possible that having a different type of charger is screwing with my battery? All i use my phone for is texting/phone calls. Thanks in advance
What are the power output on the charger? It seems that it drops really fast even during standby. The charger that came with the nexus is rated at 5v @ 1a.
SnackAttackk said:
So i recently busted my default charger and started using one i bought, its not samsung brand, but lately i've been noticing that my battery dies quicker, does this seem look like normal battery life or is it possible that having a different type of charger is screwing with my battery? All i use my phone for is texting/phone calls. Thanks in advance
Click to expand...
Click to collapse
Have you checked BetterBatteryStats? Looks like that phone is almost always awake, except during one period where the battery had less of a downslope. Also, it looks like even during the downslopes your phone is charging. Something doesn't seem right here, and I doubt it's your charger. It looks more like some application or other software is eating your battery for breakfast.
Yeah i also forgot to say, sometimes i'd look at my phone while in out and it would randomly say its charging. When its obviously not. The brand of the charger is called "On the go", no idea what kind of charge it delivers.
SnackAttackk said:
Yeah i also forgot to say, sometimes i'd look at my phone while in out and it would randomly say its charging. When its obviously not. The brand of the charger is called "On the go", no idea what kind of charge it delivers.
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Click to collapse
Are you on stock or have you tried flashing back to stock? If the problem continues even with a clean install of the stock software, it seems like the USB charging board might be messed up and may need replacing.
biscuitownz said:
What are the power output on the charger? It seems that it drops really fast even during standby. The charger that came with the nexus is rated at 5v @ 1a.
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Click to collapse
I've always wondered about this too. I seem to have a range of chargers that are micro USB that are 5v but < 1a. Is it safe to use these or not?
Yes i flashed it and am on a rooted version.
JaiaV said:
If the problem continues even with a clean install of the stock software, it seems like the USB charging board might be messed up and may need replacing.
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Click to collapse
^^^^^^^
Alright i'll look into that, thanks guys
I'm Curious About This Too
I've been using the power block from my old Motorola OG Droid, with an output of 5.1V - 850mA, along with the usb cable that came with my old Palm Pre Plus (its nearly 52" long, almost 4 1/2ft!) andi have no idea what that's rated for. I seem to be doing fine as far as I can tell. It charges quickly on AC, nothing overheats.
But what are the consequences of using a power source with this kind of difference, if any? Consequences to using a power source with a greater difference?
neccoguy21 said:
I've been using the power block from my old Motorola OG Droid, with an output of 5.1V - 850mA, along with the usb cable that came with my old Palm Pre Plus (its nearly 52" long, almost 4 1/2ft!) andi have no idea what that's rated for. I seem to be doing fine as far as I can tell. It charges quickly on AC, nothing overheats.
But what are the consequences of using a power source with this kind of difference, if any? Consequences to using a power source with a greater difference?
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Not saying it works but my friends phone was doing same phone kept saying it was still charging and screen wouldn't sleep , are u using a live wallpaper ? If u are try getting something non live and see if that helps . His phone since has stopped showing the charging icon and screen wake has reduced dramatically
Sent from my Galaxy Nexus using xda premium
benpfeil said:
I've always wondered about this too. I seem to have a range of chargers that are micro USB that are 5v but < 1a. Is it safe to use these or not?
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Yes, the "a" (amperage) doesn't matter. It's just telling you how fast it can charge your phone, higher the amperage is, the faster it'll charge.
You can also determine how many watts the charger will consume by multiplying the Voltage by Amps. So if your charger was rated at 5v @ 1.5a, it will use about 7.5 watts. If it's less than 1a, like .6a, just put a decimal before the number.
I wasn't sure whether to post this on the Q&A or in Accessories considering its a topic regarding the charger. If it doesn't belong here then (Mods) please move it.
Anyways, it says on the charger that it outputs 1200mAh to the phone and yet in the CurrentWidget it reads the current output in the range of 30~280mAh but not more than that, this is also backed up by the fact that its taking very long to charge the phone, upto 5hours to complete a charge to 100%. This was not an issue before as it normally use to take apprx 2hours to charge. I've tested a Samsung Galaxy S3 charger, using the Nexus stock cable, which in comparison outputted around 800~1000mAh which seems close to its specs. Any idea if its time to replace the charger or is this normal for you? I've only had the phone for about 2months now.
bushako said:
I wasn't sure whether to post this on the Q&A or in Accessories considering its a topic regarding the charger. If it doesn't belong here then (Mods) please move it.
Anyways, it says on the charger that it outputs 1200mAh to the phone and yet in the CurrentWidget it reads the current output in the range of 30~280mAh but not more than that, this is also backed up by the fact that its taking very long to charge the phone, upto 5hours to complete a charge to 100%. This was not an issue before as it normally use to take apprx 2hours to charge. I've tested a Samsung Galaxy S3 charger, using the Nexus stock cable, which in comparison outputted around 800~1000mAh which seems close to its specs. Any idea if its time to replace the charger or is this normal for you? I've only had the phone for about 2months now.
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Replace it, the stock gives me about 800-1000mAh as well. The Nexus 7 charger gives me the same. Don't know if it's the wire or not, but sounds like your charger is starting to crap out.
bushako said:
I wasn't sure whether to post this on the Q&A or in Accessories considering its a topic regarding the charger. If it doesn't belong here then (Mods) please move it.
Anyways, it says on the charger that it outputs 1200mAh to the phone and yet in the CurrentWidget it reads the current output in the range of 30~280mAh but not more than that, this is also backed up by the fact that its taking very long to charge the phone, upto 5hours to complete a charge to 100%. This was not an issue before as it normally use to take apprx 2hours to charge. I've tested a Samsung Galaxy S3 charger, using the Nexus stock cable, which in comparison outputted around 800~1000mAh which seems close to its specs. Any idea if its time to replace the charger or is this normal for you? I've only had the phone for about 2months now.
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My phone charges for about 1,5 hours. Are you charging via USB?
Ubichinon said:
My phone charges for about 1,5 hours. Are you charging via USB?
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No im using the adaptor that came with the phone.
xdviper said:
Replace it, the stock gives me about 800-1000mAh as well. The Nexus 7 charger gives me the same. Don't know if it's the wire or not, but sounds like your charger is starting to crap out.
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But that really sucks coz its not even that old. What a way for LG to cut corners with low quality charger. This never happened with me before.
Is the phone being used at all during charging?
And was the measured output consistently that low?
Sent from my Nexus 5 using Tapatalk
Native89 said:
Is the phone being used at all during charging?
And was the measured output consistently that low?
Sent from my Nexus 5 using Tapatalk
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I used it briefly while charging with only Battery Monitor Widget open to monitor the situation. Then I put it to sleep and let it charge. The current was consistently within the low range. I've checked battery health, capacity and voltage and its in good working capacity.
Either way there's not much I can do with a charger other than to replace it. Any suggestions?
Hi all. I finally got hold of a AC Quick Charge 2.0 USB charger for my phone after browsing the depths of the internet. I have the Incipio rapid charger for my car which works great (have never had my battery down low enough though to really notice the speedy charging) but haven't been able to find a quick charger with an EU plug until now.
From what I have seen, this charger is not really available worldwide yet, only selected places in Europe (and the US) so I was quite pleased to have found it on a Polish website HERE. I was a little sceptical ordering from there without knowing anything about the website, or reliable but they took mastercard payment so I was covered. It took 5 days to arrive with delivery by GLS. It all cost about 250DKK (25 EURO?) with delivery.
Here are a few photos anyway:
Side by side with an old HTC TC E250 (Rapid charger on the right)
I've been trying to run down my Z3c battery with some heavy browsing, downloading, video play and music but it just isn't discharging very quickly, the battery is too good! (Serious first world problem :laugh: )
Edit: Put the phone on charge after getting to 3% and after 15 mins, phone only charged upto 20%. Not exactly mind blowing :/
Then after another 10 mins, was upto 8%. So after 25 mins, it was only upto 28%. 25% charge in 25 mins is standard and way far off the claimed 0 to 60% in 30 mins bull.
It states on the HTC website that Accelerated charging performance applies to the HTC One (M8), HTC One remix, HTC One (E8), and the HTC Desire Eye. But I just assumed that it would be universal with other devices. I doubt very much that they would make it so that it would only be compatible with HTC devices.
The only thing I can think of is that there may be something wrong with my device. But have seen other complaints that the quick charging isn't working as it should on other threads.
This is all severely disappointing.
twistedh said:
This is all severely disappointing.
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Man, this is frustrating. I was hoping to get one too, but it seems that there are no seeable advantages compared to standart chargers yet. Maybe it's something that Sony should tweak first, before this thing'll work. Even though as far as I know this rapid charger should be pretty much compatible with all latest Qualcomm SoC's...
From reading on the official Sony forums is that only the Japanese variants of the Z3 are quick charge 2.0 enabled. So maybe this applies to ours also.
If the flagship Z3 in Europe doesn't have it enabled, then why would the compact?.. All very odd considering its all the same chip set.
I think we have to wait for more advanced kernels that will offer fast charging. Charging time on Z3C is really horrible, it takes about 2 hours to get 100%.
I'm coming to Z3 Compact from Xperia P which had Sony's EP850 quick charger. I only tried it once because I was in a hurry and it did charge faster than with the one provided with Z3c. Of course, you also have to use the cable provided with EP850.
Since then I didn't use XP's charger so right now I can't say how much faster it is or if it was just a placebo.
adwienc said:
I think we have to wait for more advanced kernels that will offer fast charging. Charging time on Z3C is really horrible, it takes about 2 hours to get 100%.
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2,6Ah battery and 1.5A charger equals 1.73 hours or 1h 44min of charge time. Assuming you go from 0% battery, that is (which you shouldn't, by the way).
Hi guys, i ordered htc tc p1000 but i've receiver htc tc p900 quick charging 2.0, 7,5W and not claimed 15W.
But on the same package of the charger i can find written htc tc p1000 5V 1.67A. But that wasn't 15W?
https://shop.emea.htc.com/uk/p_htc_store_product.aspx?i=270537&phone=259879