PPCGeeks - Only computer USB can consistently charge Apache

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My phone does the same thing. When I use a wall charger at work the phone will not recognize the connection. But when I plug in a USB cable and plug it in, the phone immediately displays the charging icon.

I'm not worried about it because both of my docks work (they also charge my second battery), but I just assumed that it was a fluke. As long as I can charge the phone I'm not worried...

Never had this problem with my XV6700. Any of 3 different ones.

I had this happen with my vz6700. I ended up replacing it and the problem was not there for the new one. If I remember right I actually had to do this twice, both times it worked fine for all chargers at first, then after a few months would only charge from the desk charger (the car definitely didn't work, not sure about pc powered usb). My current phone (3rd one) hasn't had this issue yet (knock on wood).

Quote:

Originally Posted by usib (Post 93140)

No, the amps certainly is not what causes the problem:
I can have my 6700 plugged into the same USB port of the same machine, and depending on which OS is running (Linux or XP), the problem will exist in one case but not in the other.
Too bad we don't have a USB analyzer here at my new job like we used to at the old one... would be really interesting to see what it is the damn thing wants in order to charge...

Having said that, if your device ever tries to draw 2.6 amps, you can surely claim it defective. The USB spec is very explicit about the current limit a device may draw: it's 0.5A. The same goes the other way, too (the charger MUST give at least 0.5A), so all those worries about current should be in the past with USB. Oh yes, there are these "unpowered sockets" but they usually say so on them.

It doesn't draw that kind of amperage normally, but when it does, it makes up the difference by pulling power from the battery instead of charging it... (Only really happens when you are in a fringe area...)

For what it's worth, the dock charger that came with my unit is rated for 1A with is fine 99% of the time... It think the issue is that the data connection and the bluetooth and maybe the screen is active if one is in the car... The typical car charger just can't handle the load... Normally, if you are hooked up to a PC, your data and bluetooth connections on the PDA are inactive, and the screen is off, so the power draw is less... (Plus the fact that the 0.5A USB spec for the supply side is a minimum as you said earlier... Most are actually more like 1A...)

The real test would be talking to someone who uses their 6700 as a internet modem for their laptop using just the USB tether for power... Could someone who does this comment on their power issues, if any?

My 6700 is going to catch a CTD because i'll charge it with just about any mini-usb plug i can find :p

i have one on my ps3; my computer; my bluetooth charger; my oem phone charger; about 4 different ones at work (rat shack); crap laying around at friends' houses etc

My plug that came with the phone no longer charges my phone but it work for my wifes rzr and her rzr charger does charges my phone. And Yes, i can tell them apart. The USB charges it just fine. But i can use any other mini usb but the one that came with the phone. i have even used the one that came with my canon camera.