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When using my Toch Diamond as a GPS which is connected to a car charger, the battery will run flat in a few hours. Is there a charger that will charge it with a higher current than 500mA? It is inconvenient for a long trip.
Wait ..... you are saying that your GPS app runs your battery down even while plugged in the car charger?
Mine doesn't do that...
yangys said:
Is there a charger that will charge it with a higher current than 500mA? It is inconvenient for a long trip.
Click to expand...
Click to collapse
Are you using an original HTC charger?
Some of the generic after-market car chargers output a lower current than what the GPS is actually draining from the phone, so effectively, rather than just charging it, that charger is simply "extending" the time it takes to drain the phone battery.
I'm not near my HTC car charger at the moment, but if I remember correctly the HTC charger outputs 2A.. ie, 2000mA? (can someone correct me if I'm wrong?) And I have no flat battery problems while using TomTom... (The fone does get warm, but that 's another issue that's been discussed previously...........)
Most car chargers only do 500mA
When using good navigation it will pull more than 500mA off your phone, so eventually, the phone will drop dead It's true, I have this too.
With an other ROM it can be fixed! Now I don't have this problem anymore. You can also connect 2 chargers parallel but you got to have the possibility in your car. Or you buy a universal USB car charger which can handle 1A. Just like home wall charger (No 2000mA ).
Good luck!
My car chager (with a mini USB output plug) is rated at 5V 2A. My suspicion is that the charge current is determined by the phone, not by the charger. The charger is simply a (constant voltage) 5V power supply. Even if the chager is capable of supplying 2A, the charging circuit in the phone is limiting it to a maximum of 500mA. If the phone is designed clever enough, it could allow a higher charging current though signaling via the two signal wires of the USB plug. Would anyone know if this is the case or not for Touch Diamond? If yes, what would be the signals for higher charge current?
Your idea about using two chargers sounds interesting. Would you be able to give us more details about how to charge one phone with two chargers? Or are you thinking of having two phone and two chargers? That is, after one phone battery gets flat, simply uses another phone.
Riel said:
Most car chargers only do 500mA
When using good navigation it will pull more than 500mA off your phone, so eventually, the phone will drop dead It's true, I have this too.
With an other ROM it can be fixed! Now I don't have this problem anymore. You can also connect 2 chargers parallel but you got to have the possibility in your car. Or you buy a universal USB car charger which can handle 1A. Just like home wall charger (No 2000mA ).
Good luck!
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Click to collapse
Confused
I have got an O2 Ignito (diamond) I have done an 8 hour round trip using GPS and my battery has not drained... And i do have the original I am using the charger that came with my polaris. my batt always stays full when plugged in and gps is running maybe your charger is what is causing it to drain
Regards
/KSPVs
Needs a 1 amp charger.
It seems the only way to fast charge a N1 is with the supplied wall charger. Standard Micro USB chargers whould only allow at much as 450mA of charge current regardless of the adapter current capacity.
The bundled charger however, manages to push 900mA into the N1. I made a cut in the charger wires and measured the current draw to make sure.
Now.. I'd like my car charger to be able to do the same. There must be some hack in the plug of the N1 charger since there are only 2 conductors from the case to the plug. You can see that the plug is somewhat longer than similar Micro USB plugs..
So I tried to see if one of the 3 unused pins can tell me anything but.. they seem unconnected as far as I could tell. Diode measurement (to test for any digital part inside) also did not produce any results. The next obvious step is to take the molded plug apart but I'd rather not...
Does anyone have any clue as to what makes that plug so special?
And please - I did my tests with a bench power supply - not the car chargers - so don't go around telling me it has to do with charger current capacity.
Thanks,
Nir
are you sure the micro usb cords you are using are able to handle the amps? most chargers made prior to now, only push about 450mA, the G1, and N1 chargers i have push a full amp though. I just ordered a car charger that pushes an amp too. There is nothing "special" about the plug.
followinginsanity said:
are you sure the micro usb cords you are using are able to handle the amps? most chargers made prior to now, only push about 450mA, the G1, and N1 chargers i have push a full amp though. I just ordered a car charger that pushes an amp too. There is nothing "special" about the plug.
Click to expand...
Click to collapse
I beg to differ. All the cords can easily supply 1 AMP. It is the phone itself that decides how much to draw from the charger based on something IN THE PLUG.
I am an electronics engineer so do understand I know perfectly what I am talking about
And your 1A car charger does not supply anything over 0.45A to the phone.. you will see that if you are using the phone while it charges (say nav or phone call) the phone actually looses some charge albeit it being charged... This will not happen with the stock wall charger.
I have a 900mAh car charger that I use and it does in fact give 900mAh to the phone while charging. I can tell because I used a 450mAh charger at home before and it was slooow and I could drain my phone while charging it. With the car charger I can stream music with spotify, use the GPS, have the screen on full brightness and the battery % will still go up.
I also bought a new wall charger recently, which is 850mAh on the USB port and has a 350mAh charger for a loose battery as well, works quite nice.
Has anyone measured the voltage or put a scope on the output of the stock charger?
maybe stock charger has a slight variance in voltage over USB chargers or some signalling going on and this tells the N1 to take more current from it?
I would like a solution to this too I've seen my phone discharge while on a supposedly 1A car charger using co-pilot.
SBS_ said:
I have a 900mAh car charger that I use and it does in fact give 900mAh to the phone while charging. I can tell because I used a 450mAh charger at home before and it was slooow and I could drain my phone while charging it. With the car charger I can stream music with spotify, use the GPS, have the screen on full brightness and the battery % will still go up.
I also bought a new wall charger recently, which is 850mAh on the USB port and has a 350mAh charger for a loose battery as well, works quite nice.
Click to expand...
Click to collapse
Forget the numbers on the chargers - what counts is what really goes into the phone and that needs to be measured with a current meter (test equipment). What you may think to be fast might not be that.
Original HTC chargers obviously do the trick of fast charging but this comes at a price compared to the $3-$4 garden variety on Ebay and the likes.
now I cannot help you with the electronics at all, but, my old HTC Touch Pro charger seems to charge the same as the one which came with the phone, is this correct?
(suits me if it is, as then I have a charger for home and work)
my blackberry bold 2 charger only says it outputs 700MAh, but both the google and htc chargers both say 1.0A
dnts said:
Forget the numbers on the chargers - what counts is what really goes into the phone and that needs to be measured with a current meter (test equipment). What you may think to be fast might not be that.
Original HTC chargers obviously do the trick of fast charging but this comes at a price compared to the $3-$4 garden variety on Ebay and the likes.
Click to expand...
Click to collapse
Yes, it is just anecdotal evidence as I don't have any equipment to measure it. But my phone no longer discharges when I use it while charging, which it used to do with the old charger I used. So while I can say for a fact that the charger I use now is faster, I can't say by how much (this goes for both the car charger and the one I put in the wall socket).
I ordered this charger a few weeks ago and it charges my phone as fast as the original charger. The label says 5v / 1200mA.
Genuine Nokia Mini AC-10U US Type AC Charger (100~240V)
$7,25 and free shipping. (Takes a while before you get it tho.)
GazzaK said:
now I cannot help you with the electronics at all, but, my old HTC Touch Pro charger seems to charge the same as the one which came with the phone, is this correct?
Click to expand...
Click to collapse
HTC Touch Pro = mini USB
Nexus One = micro USB
Not an engineering here, but I am guessing the phone not always drawing more than 500ma may be is to do with the charger itself.
There is this "fast charge" USB standard where a wall plug has the USB data pins shorted to indicate that it is a wall plug and hence the phone knows when to draw more power. So even if the charger is rated 1A, the phone might not know if it could utilize that if those pins aren't shorted. Try doing a quick Google on this ....
If someone can test if the stock charger that came with the phone in fact does have those pins shorted that would confirm part of this theory.
For all practical purpose - I used two cables/plugs with a bench adjustable power supply. Simple micro USB plug would only let me draw 450mA regardless of power supply voltage in the range 4.5-5.5V. Tried shorting data pins - nothing. Tried shorting spare pin to VCC or GND or any of the other pins - nothing.
Used original cable and plug - draws 900mA at voltages from 4.9-5.5.
So it's in the plug somehow.
Tried (very difficult) to see if the pins on the plug are shorted and all 3 spares (except for 5V and GND) seems unconnected.
Next step is the irreversible hot knife...
I'm bugged by this, too. I tested with my desktop dock connected to my car charger (which states 1000 mA): it loads slowly and my battery widget reports USB- instead of AC-charger.
Might it be that the phone tries to load more than 1000 mA at the beginning to be sure that it doesn't overload the charger? And if that fails, it falls back to 500 mA?
Could N1 use a simple logic of:
- always watch the voltage
- start drawing 500ma (or whichever is the lowest current as per USB spec)
- increment in say 50ma steps
- if voltage drops below 4.x V, back off and stay at that level
I just did a little test of my own. I have a Palm Pre car charger (actual Palm brand one labeled as 1000ma output) and I plunged my N1 into it on my way home from work. In twenty eight minutes, my battery went from 47% to 70%. Much faster than plugging into my computer, which is 500ma max. I don't have any fancy test equipment, and don't claim to know a whole lot about electronics, but seems pretty fast to me.
I have a 4-port 2A 5v USB charger, and connecting it to my Nexus OR Milestone with a MicroUSB cable (the one that shipped with either phone, or the one from my Kindle) yields painfully slow charging - it basically won't charge if you are using the phone.
Connecting the Nexus One charger yields fast charging on either phone - so it is not HTC (or Motorola) proprietary.
The Milestone comes with a 900mA USB plug, and connecting THAT to either phone with either of the MicroUSB cables yields fast charging.
I have another aftermarket 2 port 2A 5V USB wall charger (brand: T'nB) AND I have an iPhone USB plug, and both give fast charging on the Milestone, and I have not yet tried them on the Nexus One.
Breakdown (on things I've tried):
FAST CHARGING on Nexus One AND Milestone:
Nexus charger (either in the US (110v/60hz) or in France (220v/50hz) through an adaptor)
Milestone wall French USB plug (which I think is something odd like 850mA at 5.9v) with ANY microUSB cable (in fact, it seems to charge both of the phones faster than the stock Nexus One plug)
SLOW CHARGING on Nexus One AND Milestone:
USB plug on computer
One aftermarket 4 port 2A 5V USB charger (NOT a hub, only a charger)
FAST CHARGING on Milestone, untested with Nexus One
T'nB 2 port 5v 2A USB wall charger
Apple iPhone 1 port 1A 5v USB wall adaptor
Seems found the answer for Fast Charging N1
I had just do some test for Charging N1 With Original AC Charger , Other band USB Charger and PC USB charger.
1. Orginal Charger give N1 from 0% to 100% at about 2 hour and something.
2. The other band AC charger and PC USB Charger can only finish the same job over 5 to 6 hours.
The Fast Charging is Due to 5.1V (Measured at N1) and 5.2V(Measured inside AC charger). 0.1V Drop is due to resistance of USB cable.
The Slow charged is due to 4.8V (measured at N1) and 5.0V (measured on PC USB and Other AC Charger)
i.e. Original Charger mod from 5.0 V to 5.2V (about 10% increase in Voltage)
Looks my theory is correct then ? N1 watches the voltage and if it droops too much, it backs off the current.
So the key would be: get a charger than can maintain at least 1A @ 5.2V, use
a decent gauge, short wire from the brick to N1.
Has anyone tried a Blackberry charger on the N1? Will they work to full capacity as well? (They're on Amazon for a fiver)
Because the nokia charger is working
http://pinoutsguide.com/CellularPhones-Nokia/micro_usb_connector_pinout.shtml
see info under table.
I tested also HP charger + standard USB cable delivered with Nexus, and it is charching cca 1A.
Then I tested one noname Carcharger + standard USB cable delivered with Nexus, and also charging cca 1A.
I dismantle the noname carcharger and here is a result:
data line (pin2+3) is shorted and connected do + (pin1 ,Vcc) thrue resistor cca 630kOhm.
1 - 4 = 5.1V
2,3 - 4 = 3.2V
rashid11 said:
Looks my theory is correct then ? N1 watches the voltage and if it droops too much, it backs off the current.
So the key would be: get a charger than can maintain at least 1A @ 5.2V, use
a decent gauge, short wire from the brick to N1.
Click to expand...
Click to collapse
I try to use power supply 5.2V 2A with cable without dataline (pin 2and3 not connected) and it is charging 480mA only.
I have now tested with an HTC car charger for the HD2. It's fast charging (tested with Waze running, two bluetooth connections and playing mp3 - and it's still loading the battery, whereas before it would be stuck at the current percentage) and even shows AC power instead of USB.
it says- output :5v 500mah
the original says-output:5v 1a(amper i guess)
will this screw up the battery?
chances are no, considering it is half what htc recommends you charge it with, either it will charge it very slowly (half the current of the original) or the voltage wont provide enough to kick the phone into charging mode and nothing will happen (i.e. the charger "wont work")
Thanks for the help
It'll work, but as panyan said, it'll recharge much more inefficiently than with a 1 amp charger.
Actually... It will charge the phone exactly as charging via USB, as USB is limited to 0.5A.
Yep, it will charge your phone just fine @ USB charging speed, I have a similar charger.
And some of you forgot to mention that the phone will struggle when for example you will play games or use gps. Charge will be insufficient and instead charging it will slowly discharge while using it.
Sent from my Desire HD uing XDA App
Well yes and no, in normal usage it will charge phone, but when you use your phone the way that you would drain the batty in two hours, then it will discharge.
Hey... Yeah if the charger is a car charger then it may not charge fast enough if using GPS software which can drain the battery fast. 1Amp reccomended for faster charging... other than that should charge fine but just slow like USB charging (which has a max of 500mA).
One question guys... I bought a car charger from ebay listed as for HTC phones. It looks like a cheap knock off product with a glowing blue HTC logo when used in the car. The device is rated at 2Amps. Now from what little I know about electronics I've been told that AC/DC Plug packs with more Amps are ok and the device just only uses what it needs. I'm not however familiar whith battery charing when you have a higher rated Amps charger... Would the battery on the phone just be greedy and "ask" for the full 2Amps? Would this then put strain or be dangerous by charging the phone too quickly?
Secondly while we are on the topic of electronics... I'm trying out a super cheap ebay battery supposedly rated at 1600mAH (I know these rating are usually fake). I've noticed the HTC battery is around 4.17V when fully charged. This battery charged up to 4.2V fully charged... Is that dangerous for the device?
2 amp is better, correct me if i am wrong. So the output is 5V and 2A, is that mean the power is 10W every hour ?
2 A charging current (if the phone takes in that much) will damage the battery in a long term use.
It is incredibly unlikely that the phone will discharge the battery faster than it charges unless you're doing something very wrong, e.g. Running a console emulator while downloading a large file over HSDPA with WiFi enabled (but not connected) and using GPS navigation with screen brightness at maximum!
Screen and background services take approx 150mAh, and I doubt radio will take much more than that combined. That puts drain 200mAh less than USB charging, 700mAh less than direct charging.
FYI: There's a spec for USB charging of mobile phones from supported USB ports which can pull up to 1500mA.
DeathJester said:
It is incredibly unlikely that the phone will discharge the battery faster than it charges unless you're doing something very wrong, e.g. Running a console emulator while downloading a large file over HSDPA with WiFi enabled (but not connected) and using GPS navigation with screen brightness at maximum!
Click to expand...
Click to collapse
Hmm... not sure for Desire HD I haven't tested GPS with SatNav software using current widget... I do know that I'm pulling well over 200mA just with basic use at home with Wi-Fi on and GPS & Bluetooth off and I kill all backround apps. I do know that I've been in the car and seen TomTom app on my friend's jailbroken iPhone 3G (or 3Gs) and with the GPS on and not doing anything intensive... we were actually travelling down a long straight highway, the phone was chewing more battery than the car charger could charge, so he switched off GPS.
Ah also guys no need to worry about the 2Amp charger... It sh*t itself on the 3rd car use and no longer works at all. Junk! I also noticed on the 2nd car trip that opening Android SpareParts the charge is displayed as USB Charging not AC Charging so yeah I believe that the car charger was only a standard USB (max 500mA) power output and not 1Amp let alone 2Amps. Annoying how false advertising or labelling is part and parcel with cheap Chinese products.I was meaning to test the charger's output with Current Widget (which is what I'll do for my next car charger) but the charger crapped out and was useless before I got a chance.
One thing I did notice from looking at a log using Current Widget while charging my phone on the A/C charger in standby, the charge tapers off the power output the more the battery is charged. To get an accurate idea of if the car charger is going to be outputting 1Amp I'd be sure the phone battery is down to 40% (or in the 40s) then with all other stuff switched off I'd run a log on Current Widget and turn the screen off for a few minutes. You should have a reading of around +700 to +800mA if the car charger is rated at 1Amp.
Be wary of the cheap Asian knock of car chargers with the coil spring cord and the HTC logo that lights up blue.... Not worth the 3 or 4 bucks they sell on ebay for.
There's a spec for USB charging of mobile phones from supported USB ports which can pull up to 1500mA.
Click to expand...
Click to collapse
There's commonly those double USB cables for laptop hard drives so yeah I can see that if the USB ports are actually giving you the full rated maximum of 500mA you can get 1Amp output with this kind of cable but 1500mA?!? The only way I'd see possible for this is either you have a tripple USB cable connected to 3USB ports that are all outputting the full 500mA (and that's if a triple cable even exists or lets say you solder another one onto a double cable) or you have a USB AC/DC charger or some other USB port/hub you've rigged up which provides more than the USB standards of max 500mA per port. How else is this possible?!? Has the max power output of 500mA changed since USB 2.0 standards?
yeah there are usb 2.0 ports with more than 500mA power supply.
some companys give some extra juice to their (or often only one) usb ports.
for example: i've got an Dell Studio XPS 16 Notebook here. it has 3 usb ports, 2 with normal 500mA supply and one with 1A (for charging your phone, etc).
DN41
Hi,
Today I was using GPS app - HTC Locations. In about 45 minutes battery went down from 100% to 50% (I noticed that using satellite GPS makes the phone very hot) and I decided to connect a charger that I have bought recently - HTC CC-C200 car charger.
The problem was... the battery was still being discharged!
I turned off the nav app and left only basic system apps and the phone was charging only about 5 percent in 30 minutes. Keeping in mind how fast the phone was discharging using navigation, it is simple that the car charger won't do.
Anybody else has this problem? How can I actually use a navigation??
is it the official car charger from t-mobile.
Sent from my HTC Sensation 4G using XDA Premium App
It is original HTC's car charger - CC-C200
One question - can an USB extension cord (plug in to this original HTC's charger and then original HTC USB cable to this cord) decrease the speed of charging?
Car chargers will always charge slower. 12v vs. 110v.
hah2110 said:
Car chargers will always charge slower. 12v vs. 110v.
Click to expand...
Click to collapse
Are u sure that the 110V network adapter, charge the phone with 110 volts ?
The 110V charger:
HTC New Slim Design AC Adapter TC E250 (with EU Plug Unit + micro USB Cable, 5V/1A
and the car charger:
HTC Generic Car Charger with USB/micUSB Cable CC C200 (1A/5V)
have SAME charge power: 1A at 5Vm that is 5W.
The PC USB ports are rated at 500mA, but if u check the port with digital multimeter (cut the cable and put Ampere-meter) u can see that u can drain ~700-800mA , Asus and SuperMicro Motherboard tested from me
@EniHS if u make the lenght of the cable bigger the electrical resistance grow too . I think that 1 meter more wont be such a problem, but if u really wanna check how this will change the power of charge u need to measure it with Ampere-meter
This is an easy one... I try to never get the charger from the store because it (usually) won't put out enough juice to keep up.
I found that if use the same current for charging my ipad, it works much better and can keep up. With that in mind, you can purchase any charger with a 2 Amp output (10 watts) that has a generic USB connector. Try the search "10 watt usb car charger" on Google or Amazon.
Get the free app "juice plotter," which will plot your battery usage and charge. If you're plugged in and the plot is still going down, then the drain is still greater than the charge, and you'll need a better charger. Good luck!
Sent from my HTC Sensation 4G using XDA Premium App
jdmarko said:
This is an easy one... I try to never get the charger from the store because it (usually) won't put out enough juice to keep up.
I found that if use the same current for charging my ipad, it works much better and can keep up. With that in mind, you can purchase any charger with a 2 Amp output (10 watts) that has a generic USB connector. Try the search "10 watt usb car charger" on Google or Amazon.
Get the free app "juice plotter," which will plot your battery usage and charge. If you're plugged in and the plot is still going down, then the drain is still greater than the charge, and you'll need a better charger. Good luck!
Sent from my HTC Sensation 4G using XDA Premium App
Click to expand...
Click to collapse
That would be a solution. I'll buy 2A 5V charger. I assume that I should only replace the plug and the USB cable can be left from original HTC car charger?
Isn't it dangerous for the phone to charge by 2A instead of 1A (original charger)? Or the only difference is the charging speed?
Solved!
I did some tests today and discovered that if I charge the phone normally (no program running, GPS off) with HTC car charger WITH extension USB cable... phone was charging 1% in 25 minutes!!! That would be over 40 hours to charge the device from zero to full! I thought I had charger broken, but... I tried with NO EXTENSION CABLE, just the HTC plug and HTC cable, then the phone was charging normally 1% in 2 minutes!
So... the problem are extension cables, but still don't know why...
I noticed this even with wall chargers. Yesterday when I bought my phone, I plugged it in to my old charger & noticed it was charging slow. Once I switched to the charger that came with my Sensation, it charges normally now. I haven't looked at the chargers to compare if something is different but it is very strange
Isn't strange at all, it's essentially that they are not being supplied a great enough charge and so power from the battery is utilised in addition. ideally you want above 700mAh for standard charging/use.
Hello,
my battery charger stopped working and i need a new one. I read a few review and i'm a bit confuesd, not every chargers with the capability to deliver 1000mAh works with every device. So which one oft them works with the desire s and delivers 1000mAh and not just 500mAh?
just buy a oem wall charger ,, easily found on ebay and also cheap
does it has any difference between 1000 and 500mah chargers? now i'm using original liveview charger with 500mah on it but also have 1A iPhone charger.
vartotojas123 said:
does it has any difference between 1000 and 500mah chargers? now i'm using original liveview charger with 500mah on it but also have 1A iPhone charger.
Click to expand...
Click to collapse
I also have a 1A charger (coming from a SGS3), but I haven't had any problem
MatthewJoe said:
I also have a 1A charger (coming from a SGS3), but I haven't had any problem
Click to expand...
Click to collapse
same here
Overheating
im using an old S2 charger i think, its got an output of 5V, 0.7 amps and after flashing a costom rom, jellyfirebean im getting serious overheating issues, but only while charging with the phone on.
however i cant confirm this is the chargers problem yet
just a note, its the phone that heats up not the charger
coolkid12239 said:
im using an old S2 charger i think, its got an output of 5V, 0.7 amps and after flashing a costom rom, jellyfirebean im getting serious overheating issues, but only while charging with the phone on.
however i cant confirm this is the chargers problem yet
just a note, its the phone that heats up not the charger
Click to expand...
Click to collapse
no the phone never heats up using original wall charger
Talha7866 said:
no the phone never heats up using original wall charger
Click to expand...
Click to collapse
Double that. Overheating can be only caused by the phone itself, or a defected battery (means it is near death, but for serius heating, you will notice like 1hrs of battery life for the phone).
On another note for the topic. I use 3 type of chargers for my phones:
At home my ASUS tab's one (which is rated 5V 1A at the standard USB, plus the extra for the dock, but it is ASUS specific), at work an old ZTE "dumbphone" charger (which is rated 5V 0.75A, and is a high frequency switching type, so really energy-efficient) and for any other my old SE X8's one, which is 5V 650mA (which is also switching type). Also dedicated charger cables, 1 nokia, 1 SE, 1 HTC and 1 ZTE at my car.
The phone's original 5V 1A is NRFB at the box of the phone, but I have a security backup Samsung charger (rated 5V 500mA and pass-trough type, so not really efficient, but stable) which works just fine. The S is not capable (or not enabled just yet) of fast charge mode AFAIK so no really chance for 500mA or more when charging (even when GPS and 3G on, and screen on max, which is aroung 430mA when I last measued it with a service cable).
reporting back
yeah i can confirm it was the 2 year old htc battery
i am now using 2 anker 1600mah batterys and they last a LOT longer + come with an enternal charger so i always have one charged, it also charges the old htc battery too externally so i can now use 3 battieries mwahahahaa
note i did have to delete battery stats in cwm to recalibrate