USB charging

sf2

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Mar 20, 2011
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Is there any trick to charge when connected to a USB computer port? Sometimes I will be in a situation where I am by a computer and would like to be able to charge the battery.

I have the HTC drivers installed on my main computer and sync and mounting the SD works works fine. When I connect the phone it prompts with charge only and other options. No matter what I pick the battery never charges even though the light on the phone turns amber and the battery gauge shows charging.

If I connect to a computer that doesn't have the drivers installed I still get the prompt on the phone but if I pick "charge only" the light goes amber and the battery gauge shows charging but it never does.

I read about needing to short the data pins for high current mode but this doesn't seem like it is the issue because it doesn't charge even if the phone is simply on (no phone call or data other than background sync).

I have tried other cables. The phone charges OK with the factory charger and a cigarette lighter plug charger.

Any suggestions appreciated.
 
if you plug it in to the computer and click charge only it will charge. Most computers don't have enough power in the USB to charge the bolt very fast. It might be easier to carry around a second battery
 
Is there any trick to charge when connected to a USB computer port? Sometimes I will be in a situation where I am by a computer and would like to be able to charge the battery.

I have the HTC drivers installed on my main computer and sync and mounting the SD works works fine. When I connect the phone it prompts with charge only and other options. No matter what I pick the battery never charges even though the light on the phone turns amber and the battery gauge shows charging.

If I connect to a computer that doesn't have the drivers installed I still get the prompt on the phone but if I pick "charge only" the light goes amber and the battery gauge shows charging but it never does.

I read about needing to short the data pins for high current mode but this doesn't seem like it is the issue because it doesn't charge even if the phone is simply on (no phone call or data other than background sync).

I have tried other cables. The phone charges OK with the factory charger and a cigarette lighter plug charger.

Any suggestions appreciated.
I think you're not waiting long enough. Mine charges. It takes longer than the factory AC outlet charger.

-Frank
 
I think you're not waiting long enough. Mine charges. It takes longer than the factory AC outlet charger.

-Frank

I. Know when I charage mine via uxb it takes 40mins to see a noticeable change in the battery level
 
If I connect to a computer that doesn't have the drivers installed I still get the prompt on the phone but if I pick "charge only" the light goes amber and the battery gauge shows charging but it never does.

It is likely charging.
At a very low rate, but it is likely charging. It may take over 5 hours to fully charge the phone if you were not using it. If you used the phone heavily (display brightness way up, etc), it may actually discharge a little, even plugged in.
 
Is there any trick to charge when connected to a USB computer port? Sometimes I will be in a situation where I am by a computer and would like to be able to charge the battery.

I have the HTC drivers installed on my main computer and sync and mounting the SD works works fine. When I connect the phone it prompts with charge only and other options. No matter what I pick the battery never charges even though the light on the phone turns amber and the battery gauge shows charging.

If I connect to a computer that doesn't have the drivers installed I still get the prompt on the phone but if I pick "charge only" the light goes amber and the battery gauge shows charging but it never does.

I read about needing to short the data pins for high current mode but this doesn't seem like it is the issue because it doesn't charge even if the phone is simply on (no phone call or data other than background sync).

I have tried other cables. The phone charges OK with the factory charger and a cigarette lighter plug charger.

Any suggestions appreciated.

This may seem like a strange question, but how old is this computer? I only ask because if its old enough where is has USB 1.x (as opposed to USB 2.0 or 3.0) ports on it, they are not powered, so nothing will charge. The phone would show that it is charging since it automatically assumes all USB input will charge.

If they are USB 2.0, try turning off the phone while charging. If that fails, just use a wall outlet near the computer.
 
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This may seem like a strange question, but how old is this computer? I only ask because if its old enough where is has USB 1.x (as opposed to USB 2.0 or 3.0) ports on it, they are not powered, so nothing will charge. The phone would show that it is charging since it automatically assumes all USB input will charge.
That's a very good point old computers may not be able to chargeit it and that's why you are not seeing it charging when u plug it in via usb
 
The HTC charger included with TB supplies 5V at 1Amp. USB 2.0 standard calls for 5V at 0.5Amp which is enough to charge slowly if lightly using 3G. I see 0.113 to 0.384Amp draw on 3G. I keep forgetting to take note when in 4G coverage. I know it kills my battery far faster, but I need to document the draw. depending on your Apps, Wi-Fi, BT, GPS, and sync schedule your draw could be higher than mine.
 
I only ask because if its old enough where is has USB 1.x (as opposed to USB 2.0 or 3.0) ports on it, they are not powered, so nothing will charge.

Where did you hear this odd information. This is not true.

I can plug a USB keyboard or USB mouse into a USB 1.0 port and the mouse LED will light and the keyboard caps lock will light.
I can plug a memory stick into the port and the memory chip is powered up.
I used to charge an old WinMo phone off of the USB 1.0 port on an old Windows 98SE PC.

The power is NOT coming over the D+ and D+ lines, that is a fact. So it is comming from the 5V line.
 
Where did you hear this odd information. This is not true.

I can plug a USB keyboard or USB mouse into a USB 1.0 port and the mouse LED will light and the keyboard caps lock will light.
I can plug a memory stick into the port and the memory chip is powered up.
I used to charge an old WinMo phone off of the USB 1.0 port on an old Windows 98SE PC.

The power is NOT coming over the D+ and D+ lines, that is a fact. So it is comming from the 5V line.

Let me correct my statement... by not powered I meant not powered enough. Yes, USB 1.0 could send small charges to power low charge items like a mouse or thumb drive. It cannot, however, charge a phone or an portable (USB powered) hard drive.
 
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I think you're not waiting long enough. Mine charges. It takes longer than the factory AC outlet charger.

-Frank

There have been times where it was plugged into the computer for hours. The result is not only that it didn't charge but the battery level is lower on a battery gauge that shows percentage.
 
It is likely charging.
At a very low rate, but it is likely charging. It may take over 5 hours to fully charge the phone if you were not using it. If you used the phone heavily (display brightness way up, etc), it may actually discharge a little, even plugged in.

Thats actually what I am seeing it can be plugged in for a few hours and show a lower level than when I plugged it in.
 
This may seem like a strange question, but how old is this computer? I only ask because if its old enough where is has USB 1.x (as opposed to USB 2.0 or 3.0) ports on it, they are not powered, so nothing will charge. The phone would show that it is charging since it automatically assumes all USB input will charge.

If they are USB 2.0, try turning off the phone while charging. If that fails, just use a wall outlet near the computer.

Thanks but turning the phone off is not an option and I know that and turning off data etc is often suggested by VZW for some bizarre reason. I bought it as a business tool. I can't just simply turn the phone off in the middle of a business day. I was looking for ways to compensate for the design issues.

This particular computer is less than 6 months old. It has USB 3.0 ports in addition to the USB 2.0 ports.
I have noticed the same behavior on other computers.

USB isn't the primary way I want to charge it. A cable is small and if I happen to be working someplace I thought it would be handy to be able to plug it into a USB port instead of also needing to carry the charger.
 
Have you tried the battery monitor widget and look at the battery current over a period of time while plugged in?
Also, is the phone warm when plugged in?