Introduction
This guide is to help users replace their faulty battery port for the Ridgid GEN5X R8642 saw. For this guide you will need: a soldering iron, a spudger, a T20 Torx Screwdriver, Battery Port for Ridgid GEN5X R8642, and a good attitude.
Tools
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            Remove the plastic tab holding the handle cover in place by prying upward with the spudger until the tab pops off. 
 
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            Use a JIS #1 screwdriver to remove the two M4 x 25mm screws on both sides of the metal housing. 
 
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            Remove one half of the plastic housing using a spudger so that the internal system is exposed. 
 
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            Remove the plastic wire covers to the red and black connections on the switch assembly. 
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            Desolder the connections on both the red and black wire using a soldering iron. 
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            Once the solder is removed, pull out the wires with the battery port attached to the wires. 
 
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To reassemble your device, follow these instructions in reverse order.