BlackBerry 8800 North American Power Station Plus Extra Battery Charger for 8800, 8820, and 8830

The charger provided with the 8800 plugs into the mini-USB port. The Power Station recharges the BlackBerry via a different path: the two contact pads immediately under the push-to-talk switch. You lay the BlackBerry gently into the cradle, two contacts extend from the side of the cradle and begin charging the BlackBerry. At the same time, the power station charges a second battery, allowing you to merely swap batteries instead of recharging your phone.

I find that repeated use of the mini-USB port for charging causes the port to gradually fail (the contact gets progressively flakier with time, sometimes the phone doesn't charge at all). The Power Station is a far more reliable way of charging your phone.
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