| | Re: Another topic about charging issue
BlackBerry devices are configured to either talk to a driver in USB master (Desktop PC for example) to ensure that the USB port can supply enough current to charge, or detect a specific electrical configuration that indicates a dedicated charger. The latter usually requires a charger or cable specifically built for BlackBerry.
HipStreet makes a PlayBook travel kit that has car and wall chargers and a multi-headed cable that will charge any existing BlackBerry device but only when using the supplied cable. There may be other third party suppliers available in your area.
If the first charger you got has a replaceable USB cable you might try replacing it with a BlackBerry branded USB cable. If that does you might be able to return the charger you ordered and get by PlayBook rapid charger instead, the one that connects to the three prong magnetic connector. It is well worth having if you use your PlayBook a lot.
My other Blackberry is a PlayBook.