Version with Universal 110-240 volt travel Switching Power Adapter
Features: Compact: charger is only 2.5" X 3". Intelligent: The MH-C490F charger has the Delta-V based microprocessor which allows the 9V batteries to be charged to their full potential. The microprocessor automatically switches from rapid charge to trickle charge after the batteries are finished charging, so that the batteries will maintain their full capacity.
Fast Recharging Time: Unlike old 9V battery chargers, the MH-C490F charger can charge 1, 2, 3 or 4 8.4V or 9.6V batteries within 2 hours. No more waiting overnight to have the batteries fully charged. Car Capability: the MH-C490F has the patented automatic step-up device that is capable of charging 9.6V batteries at its full capability. 9.6V NiMH batteries need a minimum of 15V input to charge the batteries to its full potential. This charger is the one true 9V charger that is worthy to be called car capable.
INCLUDES new lightweight switching travel power adapter, auto-detection and switching from 110-240 volts. Includes US/Canadian plug, so you only need a prong adapter for worldwide travel (see the nice set of prong adapters from Maha below). This adapter is not only auto-switching for any worldwide voltage, but a LOT smaller and lighter than the standard power adapter, so it's a lot better suited for travel.

Now includes FREE MH-BH49V hard-shell plastic battery carrying case: A $3.95 Value!