Razer Blade 15" (2018) CMOS Battery Replacement

Written By: Clay Eickemeyer

Comments: 1

Razer Blade 15" (2018) CMOS Battery Replacement

Difficulty

Moderate

Steps

Time Required

15 - 30 minutes

Introduction

Use this guide to replace the CMOS battery in your Razer Blade 15" (2018).

If your laptop shows a BIOS configuration screen every time it's powered on, the CMOS battery may have died. Replace the CMOS battery to retain certain boot settings on your laptop.

Tools

Step 1

Allow your laptop's battery to drain below 25% before starting this repair—a charged battery may catch fire if damaged.
Unplug all cables, fully shut down your laptop, and close the lid.

Step 2

Rotate your laptop so the screen hinge is farthest from you.
Use a Torx T5 driver to remove the ten 3.8 mm-long screws securing the back cover.

Step 3

Depending on the age and condition of your laptop, the back cover may come off sooner than this guide instructs. If the cover feels loose, remove it at any time.
Apply a suction handle to the right edge of the back cover, between the middle screws and the screws closest to you.
Pull up on the suction handle to create a small gap between the back cover and the frame.
Insert an opening pick into the gap.

Step 4

Angle your opening pick upward, away from the frame. Keep it angled upward as long as it's between the back cover and the frame.
Insert your pick up to 10 mm (0.4 in) deep.

Step 5

Slide your opening pick around the bottom right corner of the back cover to free it from the frame.

Step 6

Slide your opening pick along the front edge and around the front left corner of the back cover to free it from the frame.

Step 7

Remove the back cover.
Lay the back cover down on its rubber feet to avoid damaging the gray thermal pads on its underside.

Step 8

Apply a heated iOpener to the battery cable tape for one minute.
You can also use a hair dryer—but be careful, as overheating the battery may damage it or create a fire hazard.

Step 9

Be careful not to damage the battery with your tool.
Use blunt nose tweezers or your fingers to peel the battery cable tape away from the cable.

Step 10

Use the point of a spudger to press on alternating sides of the battery connector and walk it out of its socket.

Step 11

The CMOS battery is the flat, round battery with a twisted pair of wires connecting it to the motherboard.
Use the point of your spudger to press on alternating sides of the CMOS battery connector to "walk" it out of its socket and disconnect it.

Step 12

Slide an opening pick under the CMOS battery.
Use your pick to pry up the CMOS battery from the motherboard and separate the adhesive securing it.
If the battery feels stuck, apply a heated iOpener to the battery for 30 seconds to soften the adhesive.