44 | Replacing the Coin-Cell BatteryReplacing the Coin-Cell BatteryWARNING: Before working inside your computer, read the safety informationthat shipped with your computer and follow the steps in "Before You Begin" onpage 9. After working inside your computer, follow the instructions in"After Working Inside Your Computer" on page 11. For additional safety bestpractices information, see the Regulatory Compliance Homepage atdell.com/regulatory_compliance.WARNING: The battery may explode if installed incorrectly. Replace the batteryonly with the same or equivalent type. Discard used batteries according to themanufacturer’s instructions.Procedure1 Adhere the coin-cell battery to the palm-rest assembly.2 Route the coin-cell-battery cable through the routing guides on thepalm-rest assembly.3 Connect the coin-cell battery cable to the I/O board.Postrequisites1 Replace the mSATA/WWAN card. "Replacing the mSATA/WWAN Card" on page 35.2 Replace the battery. See "Replacing the Battery" on page 26.3 Replace the speakers. See "Replacing the Speakers" on page 24.4 Follow the instructions from step 2 to step 6 in "Replacing the Base Cover" onpage 15.