How to Change Laptop Battery CellsLaptop batteries are notorious for not lasting very long. Most people have to replace their laptop battery every 1-2 years. This can be a pain, especially if you need to learn how to change the battery cells yourself. This blog post will show you how to do just that.

Steps to Change Laptop Battery Cells

A laptop battery comprises several cells, each cell having a specific voltage. When the cells are connected in series, the battery’s total voltage is the sum of the voltages of the individual cells.

To change the battery cells, you must remove the old cells and solder them in new ones. The process is relatively simple, but it is essential not to damage the circuitry. Once you have replaced the cells, you should calibrate the battery through a complete charge cycle.

This should ensure that the new cells are correctly balanced and show battery percentage. In case the issue persists, you can check to troubleshoot the problem.

1. Open the Battery Case

You can change the battery cells if your laptop has a removable battery pack. You have to remove the battery pack and open the case carefully.

2. New Battery

The battery cells inside a pack are often organized in series and parallel. The most common orientation is 3S2P, which means there are three 18650 lithium-ion cell types: INR ( Intelligent neg distributor ), ICR(integrated circuit regulator) NCR(negative carbon resultant).

Note the type of cell previously installed in the battery pack and buy the same or the cells with greater capacity. Once you get the new cells, you need to check if they all are of the same capacity or voltage.

3. Welding

Keep the cells in positions concerning their charge “+ and –”. Weld the cells together with the help of a nickel strip.

4. Attach to the Circuit

Attach your cell pack with the battery circuit with a solder. The polarity must be accurate for the wires.

5. Wrap the Battery Pack

Wrap the battery pack neatly and put them in the laptop.

6. Charging

After replacing your laptop’s battery cells, ensure to charge it thoroughly before using it. Once the laptop is fully charged, it is ready to run. Juice packs are also available to recharge laptop batteries.

Types of Battery Cells for Laptops

There are three types of battery cells used in laptop computers: nickel-cadmium (NiCd), nickel-metal-hydride (NiMH), and lithium-ion (Li-ion).

NiCd batteries have the most extended life but are the heaviest. They also have a limited number of charge cycles before they wear out. NiMH batteries are lighter than NiCd batteries and have more charge cycles, but they last only a short time. Li-ion batteries are the most lightweight and have the most extended life.

When to change Laptop Battery Cells

If your laptop battery is more than three years old, it’s time to start thinking about replacing the cells. After three years, the cells in your laptop battery start to lose their ability to hold a charge, which means you’ll see shorter run times and reduced performance.

Things to Keep in Mind

There are a few key things that you should keep in mind when it comes to changing your laptop battery cells. First and foremost, you should make sure you have a backup battery available to continue using your laptop if the new battery cells do not work correctly.

Additionally, you should always read the manufacturer’s instructions before installing new battery cells, as each brand and model may have specific instructions for installing the new cells.

Finally, dispose of the old battery cells properly – many municipalities have special recycling programs for batteries.

Safety Measures

If you are changing laptop cells, there are a few things you need to be aware of. First and foremost, always use caution when working with lithium-ion batteries. They can be volatile and dangerous if mishandled.

Here are a few other things to keep in mind:

  • Make sure the battery is completely cool before beginning the replacement process.
  • Do not work in a dusty or humid environment.
  • Always use proper safety gear, including gloves and eye protection.
  • Be very careful when disconnecting the old battery, ensuring not to damage the connector.
  • Connect the new battery carefully, ensuring the polarities are correct.
  • Finally, ensure the battery is properly secured before reconnecting the power supply.

Final Thoughts

Replacing your laptop battery cells is a relatively simple process, but it’s essential to take the necessary precautions to ensure that you do it safely and correctly.

Follow the manufacturer’s instructions, use proper safety gear, and have a backup battery on hand, just in case. With a bit of care and attention, you can easily change your laptop battery cells and extend the life of your laptop.