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Introduction |
| If your laptop has a dead CMOS battery and the OEM no longer sells new CMOS batteries (and aftermarket ones are hard to find), it is possible to take the dead battery apart and replace the cell so your laptop holds the CMOS contents again. | | '''''NoteIMPORTANT: This procedure is only recommended for older notebooks which replacements aren’t common, or readily available. If a pre-built replacement can be purchased, it's better to replace it as the cost is similar. This approach is somewhat error-prone, and can create the same issue if the tape fails.''''' | | | '''''Guide notes:''''' | | | * The cell does not need to be covered 100%. However, every visible area of the cell must be protected. '''''Liquid electrical tape is used to do this since it can be removed if something goes wrong.''''' | | * Laptop disassembly is not covered. '''''Every laptop is different, so yours probably varies from the one this was pulled from.''''' | | * '''''This guide ONLY applies to coin cell rebuilds. Do not use this guide for other batteries.''''' | | * '''''When adding tape to the cell, do not create a direct short.''''' To avoid this, place the tabs slightly higher than the factory and cut the tape sorter then you need. |
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