Laptop USB phone charging

[Scooby_snax]

When I connect my mobile to my Sony Vaio's USB port I get a good connection to transfer files etc but I cannot get it to charge my mobile. Using the same cable plugged into my desktop it works fine.
Any suggestions what could be preventing a charge from the mobile...PS mobile battery fully charged and plugged into the mains

Edited by Scooby_snax on Friday 20th July 16:22

[leorest]

My SPV will only charge on a PC which has had the apropriate drivers installed. I think the phone tries to do the decent thing and ask for permission to charge.

[Puggit]

Some USB ports on Vaios (older ones I think) only transfer data and not juice

[sheets tabuer]

Don't do it, it wrecks your battery, always use the right charger and wait until it's flat before charging

[Scooby_snax]

The Vaio is only a year old.
When you say it wrecks the battery - is that the phone battery you are referring to?

[sheets tabuer]

Yeah the phone battery

[ThePassenger]

sheets tabuer said:

Yeah the phone battery

Not sure how it'd bugger up either battery personally. Plenty of PDA's are designed to be charged from a USB cradle these days as are MP3 players (like my ipod). I wouldn't go charging oddles of gadgets from the root hub (i.e. the one in the arse end of a PC/laptop) instead opting for a powered USB hub. But for a single device and assuming the phone is designed to charge from a USB socket it won't do any harm. As to knakkering the battery, again, if the device is designed to charge from a USB socket a quick drink n' sync won't harm it in the slightest; the days of memory effect are long gone, LiPol and LiOn have their own unique 'gotcha' in that regardless of what you do with them they'll loose 10% max capacity per year (even sat on a shelf).

Now if you're talking about some 3rd party gadget and bolting it to any old phone... no. You'll probably blow the root hub sky high and end up with 2/4 dead USB ports on your laptop, not clever.

To the OP, try plugging the laptop in and seeing if that works. If not, you might find its either an unpowered/low power socket or that the phone is asking too much power from the port and it's shutting off the feed. My money is on either Laptop on battery or unpowered USB port.

Edited by ThePassenger on Saturday 21st July 06:13