I just find it stupid that the phone would show a notification for USB connection when I connect it to a charger.
Yes, it can tell the difference. Check in OS monitor, it knows whether you are getting power from USB, or from AC.
My phone thinks my car is a computer. As far as I know, it goes by the current being received -- 500 mA from a computer, 700 mA from the stock wall charger.
Sent from my SAMSUNG-SGH-I897 using XDA App
I don't think it depends on the current.
With my factory charger, if I insert the charger in and kinda pull out one side of it, it will think it's a computer and I can "mount" my sd card. so it might be a certain way the connectors touch inside
saint168 said:
I just find it stupid that the phone would show a notification for USB connection when I connect it to a charger.
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Click to collapse
It depends on the charger, but yes, the phone for the most part can tell the difference. It has to do with the voltage that is put out.
Ikonomi said:
My phone thinks my car is a computer. As far as I know, it goes by the current being received -- 500 mA from a computer, 700 mA from the stock wall charger.
Sent from my SAMSUNG-SGH-I897 using XDA App
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Click to collapse
It has nothing to do with amperage (unless it is under 500) and everything to so with charging source. Wall chargers basically short the data wires to indicate AC charger and car chargers do not.
There is a thread in accessories forum discussing this and mods to get full charging out of car chargers. I did it by modding an extra cable. My car charger puts out 1 amp but the phone never draws more then ~ 750 mah.
Sent from my MB520 using XDA App
Dungeon47 said:
Yes, it can tell the difference. Check in OS monitor, it knows whether you are getting power from USB, or from AC.
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Click to collapse
Every time I read one of your posts, in my head is McGyver's voice. Hearing him narrate the xda forums is hilarious.
From a phone
The phone can take up to 1000mA of charging current. But only if it detects it is on one of its supported AC chargers. Draw more than 500mA on a PC USB port may damage it. So, there is special wiring needs to be done for the data PINs on the USB port. That's why for generic car charger and wall chargers, it can't only assume it is PC USB port and charges at a slower pace (500mA). You will need the Samsung AC or Car charger to charge at higher current. I managed to mod one of car charger to be recognized as AC charger (no USB prompt). And you really need it because if you're using the phone as GPS navigation device, 500mA won't be able to sustain it (battery will keep be drained). You need 700ma or more.
It also depends if you have your USB connection set to a default if you will get that pop up when you connect it to any other than an AC charger.
Ikonomi said:
My phone thinks my car is a computer. As far as I know, it goes by the current being received -- 500 mA from a computer, 700 mA from the stock wall charger.
Sent from my SAMSUNG-SGH-I897 using XDA App
Click to expand...
Click to collapse
Yes it does and is sensitive. I have been using a BT headphone charger and I would be perplexed that my phone showed 100% but pull the plug and its at 87% every morning AFTER recalibrating the battery.. LOL
Decided to use the Samsung Charger and no such issues. Needs those extra Milliamps.....
Related
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.
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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
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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.
After using a wall adapter to micro USB port charger that only supplies 0.7 A instead of the 1 A the stock charger does, the lower adapter got very hot. Does the phone still try to draw one amp if its not connected to a PC through usb? Considering the standardization of micro-usb it would seem like G2x owners will try to use chargers at friends houses for other phones and it may not be the safest thing. Any input?
My factory LG charger only provides 0.7 amps.. but I use my hd2 charger that provides 1 amp cause the phone charges a little faster on it.. so I don't understand what your actually trying to say?
Sent from my LG-P999 using XDA Premium App
k00zk0 said:
After using a wall adapter to micro USB port charger that only supplies 0.7 A instead of the 1 A the stock charger does, the lower adapter got very hot. Does the phone still try to draw one amp if its not connected to a PC through usb? Considering the standardization of micro-usb it would seem like G2x owners will try to use chargers at friends houses for other phones and it may not be the safest thing. Any input?
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Click to collapse
Phone can only draw as much power as the charger supplies, up to something like 1 amp. If the charger supplies less than that, then it only draws what the charger supplies. If the charger supplies more than 1 amp, then it will still only draw the 1 amp that it needs. The more important thing to ensure is that the voltage of that charger is the same as the stock charger.
G2X CM7
squish099 said:
My factory LG charger only provides 0.7 amps.. but I use my hd2 charger that provides 1 amp cause the phone charges a little faster on it.. so I don't understand what your actually trying to say?
Sent from my LG-P999 using XDA Premium App
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Click to collapse
It's strange we got different chargers. This one outputs 4.8V at 1.0A. It also squeals when the phone is in standby. If i wake it it stops humming. Model STA-U13WR2. I wonder if charge rate has to do with anything bad? When the charge says completed and it is plugged into a USB port, it will charge for another hour at times. Makes sense since a high charging rate will cause the battery voltage to spike and read as if the charge is complete when it's still got room.
I am charging via outlet not usb but I get usb management screen and when I look at aboit phone it says charging(usb). Is this correct or do I have a problem?
Sent from my SAMSUNG-SGH-I997 using XDA Premium App infused 1.5.3 infusion beta 2
supadupadoug said:
I am charging via outlet not usb but I get usb management screen and when I look at aboit phone it says charging(usb). Is this correct or do I have a problem?
Sent from my SAMSUNG-SGH-I997 using XDA Premium App infused 1.5.3 infusion beta 2
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Click to collapse
Factory Samsung wall charger or non-factory? The resistors on USB D+ and D- of chargers designed for Ipod/Phone/Pad are detected by our phone as USB.
I have seen this issue before too. It's really not a problem. It will still charge just fine.
Sent from my SAMSUNG-SGH-I997 using XDA Premium App
Its the factory samsung charger. After trying to connect to the computer yester to no avail now everytime I plug into a ac socket I get usb mgmt. Just was wondering is my phone screwed, charging differently and not efficiently, etc.
My wife's infuse started doing that shortly after we bought it. Exchanged it for another one.
Defective cable, charger, or phone. Don't know which.
USB mode vs. "AC" mode is determined in compliance with the USB Battery Charging standard - if D+ and D- of the USB port are shorted by the charger, it signals a "dumb" charger capable of more than 500 mA. If not, it assumes USB which has a limit of 500 mA from the bus. The phone actually has no way of knowing it is on AC or not, just that it is getting +5 volts from a USB port that is indicating presence of a "dumb" charger. It will report this as AC even with a different source (like a car charger).
Actual charge current into the battery on USB is 475 mA. Normal "on-charger" current is 600 mA.
iPad/Phone/Pod chargers use a different method of signaling a "dumb charger" that our phones treat as USB.
Currently using BuoyAOSPsy v131 ROM
I have noticed that my battery still drains while I am plugged in and the phone indicates it is plugged in. Have not tested this while plugged into a wall jack, only in my car or via USB to computer.
When this occurs I am using GPS/Navigation software, active data connection (ofc), and playing music.
Does USB or car adapter not supply enough "juice" for this phone to run multiple applications/features? Is there anything I can do to remedy this, such as try a different car adapter? What specs do I need to look for to ensure appropriate power transfer?
Thanks!
**@ Moderators: Hopefully I placed this in the correct forum. Since it is not necessarily directly related to the ROM I thought it should be kept out of the ROM's thread.
Yes you can easily draw more power then its supplying when using computer or car charger. Most of the time its only charging 500 ma when charging that method. Wall charger's I believe are 1000 ma. Navagation is a HUGE draw on battery.
u921333 said:
Yes you can easily draw more power then its supplying when using computer or car charger. Most of the time its only charging 500 ma when charging that method. Wall charger's I believe are 1000 ma. Navagation is a HUGE draw on battery.
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Thank you for the info. Guess I'll just have to find a higher quality car adapter.
Actually ive read when using a data cable ie stock or regular micro usb cable on a usb port on your pc or a regular charger the max it will get is 500ma. one of the oem wall chargers (block with usb port) is able to supply 1000ma and the phone is only able to sense this the data pin + and - are shorted together. this tells the phone its charging ac plugged vs usb. now check the output of your car charger and if its able to supply more than 500ma then you can either short pins 2-3 on your cable or on your charger and you will get maximum current draw. Research it you ill there was an article posted on xda somwhere.
I'm getting 1000ma from both my ccar charger and AC adapter. u don't want to pin short a cable and charge from usb. drawing that much power will damage the port, it wasn't designed for that (1.0,2.0). USB 3.0, on the other hand :-D
Hi all.
Could the charger of desire work normally(when check in about phone it must be show AC not USB) for the HTC desire HD and Inspire 4g.
Thanks
If it shows AC that means you are charging through a power outlet and when it's charging by USB you are charging it through a USB cable connected to a computer
Charging through AC is faster then USB
Sent from my Desire HD using xda app-developers app
Why does USB from PC charges slower than the one from the socket?
emptyto said:
Why does USB from PC charges slower than the one from the socket?
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Click to collapse
PC has only 500mA current output, your wall charger has 1A output
greater current faster charging-but this does not mean that battery has not its max. charging current!
higher charging current can easily damage your battery and cell phone.
I charge my phone with Xperia charger, with Kindle charger, with Nokia charger and many more. So far I have no problem with my battery. As long as on the end of the cable you have “micro-b usb” and stable (troublefree) electric transformator to supply that cable you can charge your battery. The time to charge may be different but the result is the same.
bravebg said:
I charge my phone with Xperia charger, with Kindle charger, with Nokia charger and many more. So far I have no problem with my battery. As long as on the end of the cable you have “micro-b usb” and stable (troublefree) electric transformator to supply that cable you can charge your battery. The time to charge may be different but the result is the same.
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Click to collapse
+1 you only have to use a micro usb!
The charger should work with any phone other than iPhones
Quiglesigles said:
The charger should work with any phone other than iPhones
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Correct!
As long as it is a usb micro charger, it all works....
only the time required to fully charged varies...
I am using a Nokia USB cable as a Charge. Works fine too.
Sent from my Desire HD using xda app-developers app
I'm using Nokia cable, Sony cable ... All work fine !
As long as the two data cables are connected to eachother, the DHD will recognise it as a wall charger, and it will use 1 ampère. Instead of the 0.5 amps when connected to a PC (when the data cables aren't connected to eachother).
You can buy "charging only" cables. They always charge at maximum rate and do not transmit any data. Usually come with external battery packs etc.
Just to clarify some. (Talking about USB2.0 as 3.0 has a little higher power)
The USB on computers are powered by the motherboard (if not using extra PCI USB card).
Usually the motherboard gives about 500mAh to each USB host. If that host has 4 USB connectors all those connectors share the 500mAh.
And just be careful to not go above 500mAh as some (older) motherboards or even add in card's cannot handle the extra power and will fail to work(permanently).
So a charge-only cable will not make a difference in this situation, same goes for using multiple USB ports as that also brings extra problems with it, as power/voltage doesn't flow in just 1 direction (when using 2 poles). You could blow out USB voltage regulators when connecting different USB power leads together.
As for the phone side you can also use a 5000mAh power source, as the phone will 'take' what it needs. For DHD the max charging power is about 800mAh~900mAh if I'm not mistaken.
As long as its 5V and somewhat stable.
So if you want to charge the DHD (or any other USB chargeable phone, mostly all of them) as fast as possible use the original wall charger.
If you have to do it on the PC/Notebook unplug as much USB devices as possible, so most of the power can go to the phone.
Also make sure the screen of the phone is turned off as that's the biggest battery drain of the DHD. Thus also making charging slower (when on).
I'm using htc charger to charge my e-cigarette . It's works good.
If you plug it into USB socket, and enable "Fast charge" option, does it do anything? Does it block the data transfer and acts like a wall socket (1A) ?