Hi,
I saw while using Tbattery 0.56 that when I plug the original AC charger that the S/W (Kaiser) detects it and therefore he pulls more current from the charger.
When I use USB cable, its detects "USB" and takes less current.
now for my question, I have a AC charger from Parrot and when I'm connecting it the device acknowledge it as a "USB" not "AC charger".
Does anyone know if there is an Hardware pin in the mini USB that notify the kaiser wether its USB or AC charger ?
Regards
Nir
Hi Nir
I don't have a Kaiser, but on my prophet I've had quite the same problem.
The USB / AC difference is about the current...
On my USB charger (able to charge any USB device), the current is 0.5A
On my AC charger, provided with my prophet, the current is 1A.
As a result, when my battery is completely drained, i'm unable to charge the device via a simple USB charger. I've got to give a kickstart using the AC charger.
Hope this helps.
David
I have diamond. same 'problem' (or more of a protection from current overdraw) here.
Actually the original ac adaptor shorted the USB data+ and data-
So you'll have to modify your 3rd party USB charger by connecting the center 2 pin of usb jack. you shouldnt do this on pc or laptop as this will render usb connection useless if it doesnt fry your devices.
Do it on your own risk!!
ohms law state
amp == volt / resistence
usb is spc'd volt == 5
max amp == 0.5
AC have a much higher max amp limit then usb
so the internet resistence of the pda set the pace
and it can it seems draw a lot more then usb is spc'd to
so it's not something the device actively does it just
try to draw as many amps as it's spc'd to
resulting in ac charger charging faster then usb
Related
HI Friends
Do you hv any software to carry out fast USB Charging option, to charge my XDA with same speed as done by AC Adapter...
I have seen that other WM2003 models has this option.... like in HP 6515..
Thanks
Manmohan
Interesting... I've got a desktop holder which has to modes: charge-only and normal sync/charge mode. I wonder wether charge-only mode "enables" fast charging or wether the AC adapter does something special...
If i'm not mistaken, the typical USB port outputs 5V of power at 500mAh (milliamp-hours). And in my case, my shipped charger outputs 5V at 1000mAh . using the supplied charger would charge my Magician twice as fast compared to the USB (explanation below). I think even USB2.0 ports still give out power at 500mAh.
The Magician's battery is rated at 1200mAh. Charging through the PC's USB port would take roughly 2.4 hours. Using the supplied charger, it would take 1.2 hours. Simple equation for charging is, battery rating (mAh) divided by charger rating [so that's 1200mAh/500mAh for USB]. Disregard the voltage for now unless you plan to make your own standard/portable charger. Rule of thumb, refrain charging the battery with a higher mAh rated charger.. It will damage the battery in the long run.
Hope this helps. Cheers!
Although if you could somehow control charging via software that'd be a nifty tool...
i doubt it since max current USB can provide is 500mah as any more would damage the port and probably the board.
Hello
Yup, jedhonx your right! Its the amount of power supplied! There is no way that you could use a software to charge the device in USB at faster rates.
The only way it could be thought of is like, if your device processor is running at certain spped, it consumes some power. When it runs at lower speed, it consumes lesser power and so if the software could make your processor run low or to shut down other programs maybe would show you an incresed speed of charging!
Regards
Carty..
what about taking two usb ports with such a hard disk cable?
snudel said:
what about taking two usb ports with such a hard disk cable?
Click to expand...
Click to collapse
One of the following three thing WILL happen if ALL of them...
1-Fried Motherboard
2-Fried Battery
3-Fried Device
The first can happen because the USB ports will send energy to each other, the other two because voltage WILL duplicate... Think like this, when you have a device that uses "normal" batteries like a remote or a portable cd-player that uses two or more 1.5V batteries they use it because the device works with 3V (2*1.5V batteries)... Hope I made myself clear, because my english is quite rusty...
c3l5o said:
The first can happen because the USB ports will send energy to each other, the other two because voltage WILL duplicate... Think like this, when you have a device that uses "normal" batteries like a remote or a portable cd-player that uses two or more 1.5V batteries they use it because the device works with 3V (2*1.5V batteries)... Hope I made myself clear, because my english is quite rusty...
Click to expand...
Click to collapse
Well if you link USB ports to increase voltage it's true that it'll probably kill the mb. But linking 2 UBS connectors to increase amps is no problem and often done. You end up getting 5V 1A output. You could even link more ports to further increase the maximum supplied amps, alltough I never tested more than 3.
Linking 2 ports in a way that increases amps will NOT fry the mb, will NOT fry the battery and will NOT fry the device.
I'd say give it a try and see if it charges quicker.
Actually I think it depends on how many separate USB chips are connected to the USB ports. On one chip (or better say channel) can be more than one port be connected on the computer (like with a passive hub). In that case, connecting two USB cables in parallel doesn't change anything. Otherwise you could connect the cables in parallel and simply get more current at the same voltage (not to mix up with setting batteries in serial).
There are USB chips on the market that supply more than the specified 500mAh, but I suppose the Magician itself detects a USB connection to the computer. I remember that the first ROMs could only be loaded by USB chargers when Pin5 was connected to Ground, which was never necessary when a real USB connection was established to the computer. USB connections to the computer only use 4 Pins. This tells me that the Magician distinguishes between a connection to the charger and a connection via PC USB and limits the power drain correspondingly. If that is the case, connecting a cable with two USB ports doesn't help, it's still recognized as PC USB connection by the Magician.
it maybe OOT, but still relates. my magician can only be charged by usb cables. wont work on ac adapter. it has been going for few months and it really bugging me since it takes 4 hours to charge through usb cables.
i did try hard reset and no change .
HI Friends
I appreciate that you are trying all your mind to find the solution..
I believe that O2 provied AC Adapter wont pass additional current to screw up the battery life as it is provided by O2 Manufacturer itself. If Adapter takes 2 Hrs to completely charge the O2 Mini, then this can be done by USB cable also.
Also if you see in any other PDA running windows mobile 5 you will see an option of "fast USB Charging"..
It means that it can be done, but we need to find out how it can be done.
Thanks
How does this phone detect how are you charging it?
When it's being charged as "USB" it charges much slower than as "AC". I can see the current charing mode in *#*#4636#*#*.
Okay, the USB port has 500mA, it's understandable that it will charge slower than the original AC adapter that gives 1A. But in my car I have a Tomtom charger that gives 2A and it's detected as USB, so it charges slower than the original AC adapter...
¿Any ideas?
xntx said:
How does this phone detect how are you charging it?
When it's being charged as "USB" it charges much slower than as "AC". I can see the current charing mode in *#*#4636#*#*.
Okay, the USB port has 500mA, it's understandable that it will charge slower than the original AC adapter that gives 1A. But in my car I have a Tomtom charger that gives 2A and it's detected as USB, so it charges slower than the original AC adapter...
¿Any ideas?
Click to expand...
Click to collapse
iirc it's the same behavior as other HTC smartphones. If pin 4 on the charger plug is shorted to ground, the phone will fast charge. If pin 4 is floating, it will pull 500mA. Search "htc magician pinout"
jashsu said:
iirc it's the same behavior as other HTC smartphones. If pin 4 on the charger plug is shorted to ground, the phone will fast charge. If pin 4 is floating, it will pull 500mA. Search "htc magician pinout"
Click to expand...
Click to collapse
Thank you for so quick answer
The Note 3 is the first phone to come with USB 3.0 support, the cable and connector are up to spec.
What I'm wondering if this helps with the charging speed, as the wall charger doesn't seem to be with a USB 3.0 connector.
Does anyone have any insight to this?
Sent from my SM-N9005 using Tapatalk
The wall charger has a 2Ah power output while a pc usb 3.0 port has a maximum output of 900mAh. If you use an USB 2.0 port it's only 500mAh.
The best way to recharge the Note 3 is to use the wall charger.
s1m4an said:
The Note 3 is the first phone to come with USB 3.0 support, the cable and connector are up to spec.
What I'm wondering if this helps with the charging speed, as the wall charger doesn't seem to be with a USB 3.0 connector.
Does anyone have any insight to this?
Click to expand...
Click to collapse
From a dedicated charger the final charging current is normally determined by the PHONE + CHARGER based on how the phone "recognizes" the charger as good/bad (and what battery level you already have + how warm the battery is) and how much power the charger can provide. I believe the max that I have seen on my Note 3 was 1800 mA (which worked with both USB3 cables but also with some good USB2 cables).
From a PC the charging current is the result of a more complex negotiation, the phone can still have "the last word" but it can not go over 500 mA on USB2 or 900 mA on USB3.
Somehow related - please note that on USB3 DATA you STILL need to MANUALLY enable USB3 mode EVERY TIME YOU PLUG TO THE PC. Even if enabled the mode will be reset to USB2 in 10 minutes and lost if you remove and plug-in again. That being said on my Thinkpad I have not seen it charging over 450 mA even when on USB3 under Win7 (but the speed difference exists, so USB3 is correctly triggered).
Also please note that the life of the battery can be heavily influenced by the charging current - the smaller the charging current the more cycles the battery will last on the very long term. Also high temperatures are pretty bad for the battery. So if you are in no hurry it is always better to charge with a small USB2 current that is guaranteed to not go over 500 mA.
Maybe I wasn't clear enough, I'm wondering if the wall charger is utilizing the USB 3.0 capability, and if there's any advantage of using the USB 3 cable over a regular micro USB cable.
Sent from my SM-N9005 using Tapatalk
No, there is not. The Note 3 has a USB 3.0 port, but it is only faster for data transfer. Charging is done at 2.0 speed, not 3.0. Regardless of what you attach it to, it charges just as fast as a 2.0 device.
TheBeast1981 said:
The wall charger has a 2Ah power output while a pc usb 3.0 port has a maximum output of 900mAh. If you use an USB 2.0 port it's only 500mAh.
The best way to recharge the Note 3 is to use the wall charger.
Click to expand...
Click to collapse
What if you used a USB 2.0 cable with the 2Ah AC adapter? Would it still charge in "USB 3.0" mode and not give you a message to use a USB 3.0 cable?
I have my old 1Ah car charger and when I use a USB 2.0 cable, the phone says to use the USB 3.0 cable for faster charging.
But, looking at this pinout:
http://commons.wikimedia.org/wiki/File:USB_3.0_Micro_B_plug.PNG
It seems like only the USB 2.0 section is providing the power?
It's utterly confusing. Would be nice if someone who really knows this stuff explain how it works?
---------- Post added at 09:58 AM ---------- Previous post was at 09:56 AM ----------
ShadowLea said:
No, there is not. The Note 3 has a USB 3.0 port, but it is only faster for data transfer. Charging is done at 2.0 speed, not 3.0. Regardless of what you attach it to, it charges just as fast as a 2.0 device.
Click to expand...
Click to collapse
What's strange is that I have a car charger that is 1.0Ah. When I use a USB 2.0 cable, the phone tells me to use a USB 3.0 cable for faster charging.
When I use a USB 3.0 cable, the message does not appear.
But I'm thinking that the car charger can only put out 1.0Ah regardless of the cable that is used?
Hi guys,
I am building a mobile boombox and also want to charge my Smartphone at it. I already knew, that if you only connect a USB Port to 5V, it will only charge with 500mA.
So i read about the shorten your DataPin stuff, wich let the Smartphone recognize that you are at a dedicated charger and not at a PC/Laptop/... . This works perfectly fine, my Smartphone now shows that it is in AC and not in USB mode.
So i was pretty happy, grabbed my Multimeter and messured with how many Ampere I am charching. Well... it said 500mA.
So I asked google a bit more and found an article about thinker USB cables.
So I startet testing on my original Samsung wallcharger and used a devide to meassure how many watts the divice draws from the socket.
Original Samsung wallcharger + original Samsung cable -> 6,5Watts
Original Samsung wallcharger + chear USB cable -> 2,5Watts
Original HTC wallcharger + original Samsung cable ->6,5 Watts
Original HTC wallcharger + cheap USB cable -> 2,5Watts
Cheap wallcharger + any cable -> 2,5Watts
At my self made charger, no matter what cable i use it only draws 500mA/2,5Watts.
Like I already said, my Datapins are shortend, and it says AC mode, but still it only draws 500mA, even though the module wich provides the 5V (its regulated down from 12V to 5V) can provide up to 3A.
So the cable makes a difference, also does the charger.
Do you have any ideas or suggestions?
Wanted to ask before I consider returning the charger I got
I tested this car charger
https://www.amazon.com/gp/product/B01E764DXM
Using this
https://www.amazon.com/gp/product/B01MT8MC3N
Results were
Using USB A to USB C cable - screen off 8.98v/1A-1.67A(amps varied during the 100mA test I did) - phone read Fast Charging
Using a USB C to USB C cable plugged into the USB C port - screen off 5v/1.8A steady (zero fluctuation) - phone read Cable Charging
Now the charger says it is capable of 5v/3A output out of the USB C port but that's not what I'm getting to the S8, which makes me wonder if it's a limit placed by Samsung software to not go for higher Amperage (and therefore more wattage)
When I look at the estimated charging times, the QC (USB A- USB C) is usually 10 min faster than the USB C charging
9x1.67 is the max the phone supports, on 5v you might get 2a tops, looks like the usb-c port on that charger doesn't support 9v for some reason.
Has anyone found and tried USB-C cables that support high-power 5a and for sale in the USA? https://www.startech.com/ca/Cables/usb-c/usb-c-usb-3-1-cable-power-delivery~USB31C5C1M