Introduction
After replacing the battery and charging problems still persist, use this guide to replace the charging node.
Tools
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            Remove the rubber from the bottom of the speaker, use a medium blue plastic spudger to gently work its way under the rubber and slowly peel off for each of the three feet. The order does not matter. 
 
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            Remove the six 11 mm Philips #1 screws found underneath the foam to remove the steel outer metal frame. 
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            Once the screws come off, keep them safely off to the side. 
 
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            Lift the base up gently keeping in mind that the base is connected with wires to internal parts of the speaker. 
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            Disconnect the white bundled cable connector attached to the charging node using a spudger. The base of the speaker is now free to be removed. 
 
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            Remove the white power cable connector that connects the charging node to the battery, using the plastic spudger. 
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            Pry the battery off using the plastic spudger. 
 
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            Unscrew the two 11 mm Philips #1 screws on the charging nodes. 
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            Remove the charging node from the speaker and set aside. 
 
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To reassemble your device, follow these instructions in reverse order.