Question about Motorola Mobility V710
I voltage in battery connector 1 pin =.67 ,2nd= 2.56,3rd=2.56,4th= gnd
All cellphone run on Lithium Ion batteries. These batteries, by nature(physics) have a max charged voltage of 3.4 to 4VDC. So, of your charger, or USB cable, has less than about 5 VDC, then either charger is defective, USB cable(if charging from PC USB port) is not a FULL USB(has data leads only wire, 5V power wire not carried through, PC does not supply 5V power to USB because it is turned off by a PC setting option, or a non-powering USB Hub or other device is in series with PC and Phone.
Are you sure you have identified the GND wire correctly? Measurements must all be made with one lead of your VoltMeter referenced to GND. Another consideration, some Windows Mobile phones will not charge off the USB cable unless the latest version of WM ActiveSync or Mobile Device software is loaded and running on the PC. These WM phones also will not charge from just any AC USB generic charger. Charger has to be for that particular phone, or phone manufacture, to be 'recognized' before provideing charge.
Posted on Feb 22, 2009
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