Back to Contents PageReserve BatteryDell™ X200 Service ManualRemoving the Reserve Battery1. Remove the battery.2. Remove the keyboard.3. Remove the palm rest.4. Disconnect the reserve battery cable from the system board connector.5. Pry the reserve battery free from the bottom case. The reserve battery is attached to the bottom case with a piece of adhesive tape.6. Remove any remnants of the adhesive tape from the bottom case.Replacing the Reserve Battery1. Connect the reserve battery connector to the system board connector.2. Press the reserve battery into place on the bottom case.3. Update the BIOS using a flash BIOS update program. For instructions on how to flash the BIOS, see "Flashing the BIOS."Back to Contents PageNOTICE: Disconnect the computer and any attached devices from electrical outlets.NOTICE: To avoid ESD, ground yourself by using a wrist grounding strap or by touching an unpainted metal surface on the computer.NOTICE: Read "Preparing to Work Inside the Computer" before performing the following procedure.NOTICE: Do not pull on the reserve battery cable. Pull from the reserve battery connector to disconnect the cable.1 reserve battery cable2 system board connector3 reserve battery connector4 reserve battery