● If the battery gets stuck inside your computer as a result of swelling, do not try to release it as puncturing,bending, or crushing a lithium-ion battery can be dangerous. In such an instance, contact Dell technicalsupport for assistance. See www.dell.com/contactdell.● Always purchase genuine batteries from www.dell.com or authorized Dell partners and resellers.● Swollen batteries should not be used and should be replaced and disposed properly. For guidelines on how tohandle and replace swollen Lithium-ion batteries, see Handling swollen Lithium-ion batteries.Removing the 3-cell batteryPrerequisites1. Follow the procedure in Before working inside your computer.2. Remove the base cover.About this taskThe following image indicates the location of the 3-cell (41 Wh) battery and provides a visual representation of the removalprocedure.Steps1. Peel the tape that secures the battery cable to the system board.2. Disconnect the battery cable from the system board.3. Remove the three (M2x3) screws that secure the 3-cell battery to the palm-rest and keyboard assembly.4. Lift the 3-cell battery, along with its cable, off the palm-rest and keyboard assembly.Installing the 3-cell batteryPrerequisitesIf you are replacing a component, remove the existing component before performing the installation procedure.Removing and installing components 17