Okay so, PF, here is my situation! I have my cell phone and my digital camera and they both came with those wall chargers where you plug in a USB cable into the actual wall plug. This allows you to use the same cable to charge off a wall or a computer. Now, I was wondering if I can use the plugs interchangably. One wall plug is rated at 5V 800mA and the other at 5V 700mA. Can these plugs basically be used interchangably? I wouldn't want to supply too much current if one of the devices can't handle that much.