Introduction
The battery in the A701 is located adjacent to the motherboard (the blue L-shaped piece) and has soldered wires. Before continuing, be sure you have all the necessary tools and safety equipment.
A guide to soldering can be found here.
Tools
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            Disconnect speaker (which is attached by black and red wires) from back piece using plastic spudger. 
 
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            Remove red and black wires leading from the battery to the motherboard by heating up a soldering iron and applying to area and gently removing wires. 
 
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                            Conclusion
                          
                          To reassemble your device, follow these instructions in reverse order.