How to Fix a Broken Laptop Battery

Written by kellyb
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Your laptop battery will eventually weaken over time. A battery that previously lasted two hours on every charge a few years ago now only lasts for 30 minutes. This can be frustrating, especially if you use your laptop frequently and you count on it to be portable. You can fix a broken or worn out laptop battery by simply replacing it with a new one. Doing so will require some minor disassembly of your laptop. Note that opening your laptop may void the manufacturer's warranty. Check your warranty before proceeding with this repair procedure.

Skill level:

Things you need

  • Screwdriver
  • Hobby knife or single-edge razor blade
  • New batteries

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  1. 1

    Allow your laptop battery to fully drain. Then, remove the battery from the laptop, by turning the unit face down and locating the battery compartment. You might need to remove one or more screws from the compartment cover or slide open a latch, depending on the model of your laptop.

  2. 2

    Slide the battery out of its compartment. The battery pack may be a single unit or may contain about six individual batteries in a case, depending on the make and model of your laptop.

  3. 3

    Remove the individual batteries from the plastic case, if your laptop has a case with multiple batteries; if not, go on to the next step. Use a hobby knife or single-edge razor blade to open the plastic wrapped around the case, if there is any, in order to remove the individual batteries. Replace the old batteries with fresh ones.

  4. 4

    Insert a new battery pack into the battery compartment of your laptop. Refasten the screws or slide the latch to the closed position to secure the battery compartment door.

  5. 5

    Plug your laptop in to the AC current and allow the battery to fully charge before using the computer again.

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