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Dell Inspiron 17-3721 CMOS Battery Replacement

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Over time, a laptop's CMOS battery will stop holding it's charge and eventually die out. This guide will show how to remove and replace the CMOS battery of the device.

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  1. Dell Inspiron 17-3721 CMOS Battery Replacement, CMOS Battery: crwdns2935265:01crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 Dell Inspiron 17-3721 CMOS Battery Replacement, CMOS Battery: crwdns2935265:01crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 Dell Inspiron 17-3721 CMOS Battery Replacement, CMOS Battery: crwdns2935265:01crwdnd2935265:03crwdnd2935265:03crwdne2935265:0

    • Remove the two 6.5 mm PH1 Philips head screws on the back panel.

    • Lift up the small panel from the top, using the plastic opening tools if necessary.

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  3. Dell Inspiron 17-3721 CMOS Battery Replacement: crwdns2935265:02crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Dell Inspiron 17-3721 CMOS Battery Replacement: crwdns2935265:02crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

    • Remove the CMOS battery with the plastic opening tools.

    • Be careful while prying it open, the battery holder can break if you use too much force.

    • Do not use metal tools when touching anything that can have an electric charge.

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To reassemble your device, follow these instructions in reverse order.

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Christopher Meninno

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UMASSD-PEAK-S18S5G3

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