Introduction
The Samsung Rugby II (SGH-847) is a rugged phone with easy to replace components, including the battery.
Tools
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            On the back side of the phone there is a cover over the battery and sim card compartment. 
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            Open the latch on top counter clockwise to reveal battery compartment. 
 
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                            Conclusion
                          
                          To reassemble your device, follow these instructions in reverse order.