Introduction
This guide will solve issues involving a defective battery, such as: Unexpected Shutdown, Laptop not Charging, Laptop Shuts down when Unplugged.
Tools
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            Flip the device so the back is facing you. 
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            Using the Phillips #0 screwdriver, unscrew the fourteen screws from the device. 
 
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            Use the blue Opening Tool to pry-open the back cover. 
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            Slide it around the perimeter of the PC freeing the back cover. 
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            Remove the back cover from the device. 
 
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            Use the Blunt Tweezers from the Tool Kit to disconnect the battery connections from the motherboard. 
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            Remove the battery from the device. 
 
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                            Conclusion
                          
                          To reassemble your device, follow the instructions on Step 3.