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.
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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.
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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?
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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.
Seems Qualcomm which charge 2.0 not working with Mi 4 original cable anyone suggest how enable fast charging on Xiaomi mi 4.
If I'm not mistaken, you need a charger with higher outputs then the standard wall charger shipped with most phones. Just a guess though seeing as my Xiaomi Mi 4 charger is a five volt charger.
Charger
My charger say Output 5v=2A/9v=1.2A/12v=1A i dont know if that whats needed but it charges very quickly.
Plajz0r said:
My charger say Output 5v=2A/9v=1.2A/12v=1A i dont know if that whats needed but it charges very quickly.
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Click to collapse
5v is the voltage standard. What you want is AMPS. ALWAYS select 5 volts.
Computers (USB 2.0) can output maximum 0.5A (500ma) at 5 volts, while USB 3.0 can output 900ma or 0.9A.
Most MicroUSB chargers output anything from 1A to 3A+, with 1A and 2.1A being the most common.
So while a 1A will charge your phone a X percent per minute, a two amp charger will charge it at almost double the rate (not exactly, but close enough).
I do however (and I stand corrected), recommend not to go too high an amperage, while your phone my not get damaged, slow and steady charging is better for the battery than high current, quick charging.
Some phone, like my Galaxy S5, requires a 2A charger, but other phones may not like it.
I think it's always enable ...
Hi,
Just wanted to share my experience with adaptive/fast chargers.
Recently purchased four different manufacturers chargers from Amazon in an attempt to find one that would live up to its claims of charging at the maximum capacity of the phones battery and be an improvement over the stock charger.
The chargers were tested using an Xperia Z2, Samsung Galaxy S6 and an Xperia Tablet Z.
Below are the four that were purchased:
- AUKEY Wall Charger 3 Ports 30W / 6A USB Travel Adapter
- TeckNet® PowerZone C3 Universal BLUETEK™ USB-C Power Adapter 24W/5V 4.8A 4 Port USB Wall Charger
- Tronsmart 42W 3-Port USB Wall Charger
- Orico 30W 6A 4-Port Mains USB Charger
Initially I tested each charger using Ampere(Play Store) and though the results varied, none of the chargers seemed to output more than 500-850ma. I also noted that in the Ampere App, the Max USB current value was set at 1000ma for all four chargers. When using the stock Sony or Samsung Apaptive Charger, the Max USB current was detected correctly at 1500ma and while the Sony 1500ma charger only ever managed an output of 950-1100ma, the Samsung 2000ma charger managed an output of 1300-1400ma.
With the varying results using Ampere I purchased an inline USB current meter (). I had sent the first three chargers back by this point but still had the Orico.
Using the inline current meter I found it more accurate and if it was showing a reading of 1000ma, Ampere would show anywhere between 200-700ma which makes me wonder how accurate the Ampere App actually is.
Using the inline meter the Orico could only supply 950-1100ma. Given each port is claimed to output upto 2.4 amps I would have expected it to at least get close to 1500ma.
In the end I purchased a cheap Foxconn dual port 2000ma charger and using the inline meter it showed 1400-1500ma.
Not even the Tronsmart which comes with a Quickcharge 2.0 port could manage more than 1100ma on either the Z2 or S6.
I don't really know what all this means but it seems all these manufacturers are maybe using the same internals and the adaptive charging is detecting only 1000ma on the devices I tested them with.
A frustrating experience to find a fast charger but I hope this information is helpful to others and I'd be interested to hear others opinions/experiences with such chargers.
This was my first post so apologies if its not in the right section.
Thanks
I think, Fast charge need to be enabled in the kernel, did you try that
Hello all,
I've recently ordered for my xperia z5 and z3 compact the following accessories for fast charging:
LG Fast-Charger MCS-H05ED
100-240V
50-60Hz
5V / 1.8A
+
Logilink CU0058 microUSB (USB 2.0 -- Max. Transfer Rate: 480 Mbit/s)
Does it replace the SONY UCH-10? Or is this better than UCH-20 at rapid charging?
I really hope I didn't messed up with this order, don't want any malfunctions on z5 - but original chargers weren't available in my country for same day delivery so I had to improvise based on tech specs.
it is only 1.8 A you need at least 2.1A to notice anything faster.
Look for a Qualcomm Quick Charge 2.0 (QC 2.0) certified charger.
@z5techno
You have to upgrade your charger. Fast charger not means higher ampere. Fast charger means higher WATT (ampere * voltage).
UCH-10 has 9v*1.700ma or 12v*1.250ma, 15.3WATT
You can use higher than this WATT, charger will adjust the max voltage and ampere that phone requires.
You can buy QC3.0 charger for future purpose, it can work with QC2.0 compatible phones. AUKEY and Blitzwolf are good choices.
Thank you for the detailed answer, @sceryavuz !
Until I upgrade to uch 10, I'll keep this LG charger - I'm pleased with this charging the phone.
sceryavuz said:
@z5techno
You have to upgrade your charger. Fast charger not means higher ampere. Fast charger means higher WATT (ampere * voltage).
UCH-10 has 9v*1.700ma or 12v*1.250ma, 15.3WATT
You can use higher than this WATT, charger will adjust the max voltage and ampere that phone requires.
You can buy QC3.0 charger for future purpose, it can work with QC2.0 compatible phones. AUKEY and Blitzwolf are good choices.
Click to expand...
Click to collapse
L33Tgod said:
it is only 1.8 A you need at least 2.1A to notice anything faster.
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Sony has locked maximum current at 1.5A so you won't notice the difference. With UCH20 I got 2h to charged my device, the time downs to 1.5h with UCH10 (QC2.0 supports). The result is same as UCH10 when I uses Anker PowerPort+ 18W 9V-2A (is my current adapter since it costs a half of UCH10 with better specs).
Delete
I use the iPad Adapter Charger for the Z5 and it gives me pretty fast charging speed