Note: If a locking device is available, use it to lock the computer.Coin-cell batteryPrerequisiteBefore you start, read Generic Safety and Compliance Notices, and print the following instructions.DANGERIf the coin-cell battery is incorrectly replaced, there is danger of an explosion. The coin-cell batterycontains a small amount of harmful substance. To avoid possible injury:• Replace only with a battery of the type recommended by Lenovo.• Keep the battery away from fire.• Do not expose it to excessive heat.• Do not expose it to water or rain.• Do not short-circuit it.• Do not drop, crush, puncture the battery, or make it subject to strong forces. Battery abuse ormishandling can cause the battery to overheat, which can cause gasses or flame to "vent" fromthe battery or coin-cell battery.Note: To dispose of the coin-cell battery, refer to “Lithium coin-cell battery notice” in the Safety andWarranty Guide.Your computer has a special type of memory that maintains the date, time, and settings for built-in features,such as parallel connector assignments (configurations). A coin-cell battery keeps this information activewhen you turn off the computer.The coin-cell battery normally requires no charging or maintenance throughout its life; however, no coin-cellbattery lasts forever. If the coin-cell battery fails, the date and time information is lost. An error message isdisplayed when you turn on the computer.Replacement procedure1. Remove the computer cover. See “Computer cover” on page 16.2. Remove the bottom cover. See “Bottom cover” on page 17.3. Remove the storage drive. See “Storage drive” on page 19.4. Remove the system fan. See “System fan” on page 25.5. Press the metallic tab to disengage the latch.22 IdeaCentre Mini 5i (1L, 7)User Guide