ASUS VivoBook S400C Battery Replacement
Ashley Panduro and 5 other contributors
Last updated on Mar 26, 2026
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Introduction
Go to step 1 ↓If your ASUS VivoBook S400C has an extremely short battery life or does not hold a charge, use this guide to replace the battery.
Over time, a battery may degrade in quality and fail to hold a long charge or take a charge at all. Before using this guide, check that no other factors are preventing a charge.
Before beginning, make sure your laptop is powered off and disconnected from any external power source. Take extra care if your battery is swollen .
What you need
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Flip the device over and remove the ten 5.7 mm screws with a Phillips #0 screwdriver.
Ask FixBot
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Use a spudger or your fingers to go around and lift the edges and release the back panel.
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Using a spudger, lift up the plug connecting the battery to the motherboard.
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With a Phillips #0 screwdriver, remove the four 5.7 mm screws holding the battery to the laptop.
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To reassemble your device, follow these instructions in reverse order.
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Team
UC Santa Barbara, Team S4-G4, Bator Fall 2019 Member of UC Santa Barbara, Team S4-G4, Bator Fall 2019
UCSB-BATOR-F19S4G4
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