I have a power cord that came with a Motorola Razr cell phone. The end of the cord that plugs into the device is an exact fit for the 540 TM. Output for the cord is 5 volts. Use of this power cord could sometimes be a more convenient way to charge the 540, or power it while fiddling with it, than to use the USB port on my notebook. Is there any reason why this would be a bad idea?
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