Philips MP3 won't charge via mains USB

Hello,


Hello,

Can any one help please. I have just bought a Philips GoGear 4GB MP3 SA1942/02. I already had a universal mains USB charger that I use for another MP3 but this doesn't charge the Philips MP3. I have since bought another universal mains charger from ebay but this doesn't work either. The Philips MP3 only charges via the computer USB, which isn't much good when I go on holiday.

I didn't want to pay £14 or £20 for the charger recommended by Philips any ideas?