Dell XPS 17 9720 Service Manual - Page 15
Battery, Lithium-ion battery precautions
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Steps 1. Align the screw holes on the base cover with the screw holes on the palm-rest and keyboard assembly, and then snap the base cover into place. 2. Replace the eight Torx T5 screws (M2x4) to secure the base cover to the palm-rest and keyboard assembly. Next steps 1. Follow the procedure in After working inside your computer. Battery Lithium-ion battery precautions CAUTION: ● Exercise caution when handling Lithium-ion batteries. ● Discharge the battery completely before removing it. Disconnect the AC power adapter from the system and operate the computer solely on battery power-the battery is fully discharged when the computer no longer turns on when the power button is pressed. ● Do not crush, drop, mutilate, or penetrate the battery with foreign objects. ● Do not expose the battery to high temperatures, or disassemble battery packs and cells. ● Do not apply pressure to the surface of the battery. Removing and installing components 15