Product Description myPower ALL Plus MP3450 provides 5V thru 19V to power and/or charge laptops and other devices like camcorders, and include a bonus USB output port to simultaneouslly charge other small portable devices. 
Selecting the right voltage for a personal device is done quickly and easily. Because myPower ALL Plus MP3450 automatically resets to the lowest setting after a device is connected, you will never overcharge your portable device. Because MP3450 is modular, you can also add a second battery to this lightweight universal rechargeable battery to double the battery capacity.
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