How to Replace a MacBook Pro Battery

If you own a MacBook Pro, the difficulty of replacing the battery will vary according to the model. Although you have the choice to take your machine in for a service, it is possible to do it yourself.

Of course, it is more expensive to go to a specialist, but it may be less stressful. If you do want to have a go yourself, then you will need to consider some potential issues.

Newer models of the MacBook Pro have batteries glued into the casing, so you will need to remove the adhesive to take out the old battery. Apple doesn’t offer this as a service so you’d need to find a professional if you would rather save some money.

In this post, we will give you the specific steps to properly replace your MacBook Pro battery.

Why would you need to replace a MacBook Pro battery?

Once you have had your MacBook Pro for a few years, it is common to notice a few problems. You may feel like you need to replace your Mac, but it is often down to battery failure.

If your model has some random shutdowns or needs charging more often than usual, it could signify that the battery is on its way out. If the Mac is working well in other ways, it will be far more cost-effective to get a new battery fitted than invest in a new model.

Replacing the battery can have a significant impact on your Mac’s performance. Being portable these laptops use the battery as the main power source, so your machine will suffer when the battery is not at 100% performance.

You will know that the cost of a new model can be very high, so being able to replace the battery will be a far cheaper option. If looked after, you can expect a Mac to last between five and eight years typically depending on use, so it makes sense to replace the battery if the general performance is still good.

How to Tell When your MacBook Pro Battery Needs Replacing 

The first sign that your Mac Pro has a problem with the battery could be unplanned shutdowns or needing to charge the battery more often. The battery may lose its charge quickly, and the performance of your Mac may deteriorate.

If you are concerned about your battery performance, check its health. In addition, the battery goes through charging cycles that can be measured.

A charge cycle is the time taken for the battery to use up all its power. It does not necessarily happen in one charge.

You might complete a charge cycle over several days where you drain some of the battery power and recharge several times to complete one entire cycle.

Battery performance is expected to decrease after a set number of charge cycles have been completed. After this, its performance will deteriorate, and Apple recommends that you change the battery.

To access how many charge cycles your battery has left, you can look up the cycle count in System Information.

  • Hold down the Option Key and click Apple Menu to choose System Information.
  • Under Hardware, select Power, and you will find the current cycle count under Battery Information.

You should also check the battery health status using an app called Coconut Battery. You can download this from safari and it’ll give you the information about the battery status.

If you have reached near the maximum of your cycle count or your battery health is poor, you should be aware that your CPU can get throttled to keep power usage under the adapter limit. A worn battery will negatively impact the performance of your MacBook Pro, so replacing it is essential.

What is the process for replacing the battery in a MacBook Pro?

If you have a MacBook Pro built after 2012, your battery will be built-in. It means that the battery is glued into the casing of the laptop.

Battery replacement is a job for only experienced users. If you doubt your ability to carry out this process without causing damage to your Mac, it is advisable to seek advice from a professional repairer.

There is a risk that a lithium battery will explode. It is essential to follow the process below to ensure you remove the battery without causing damage, but you should also check your model for any specific instructions.

Ensure that you source a battery from a reputable supplier. You will also need the appropriate tools to open the case.

Before you start, you must ensure that your machine is turned off and that you have fully drained the battery. It would be best if you worked on a stable surface.

1) Open the machine.

2) Clean out the inside, disconnect the battery.

3) Run a small alcohol behind each battery cell being careful of any other components.

4) Use a fine, strong string to slide under each cell to remove the cells. Other methods include using plastic cards and pry tools.

5) Once the cells are removed, you can clean the adhesive off.

6) Prepare the new battery for installation.

7) Connect the battery and close up the casing ready to test.

8) Recycle the old battery at your local recycling centre.

Once you have installed your new battery, you’ll need to calibrate it. You should drain the new battery and then charge it to 100% before letting it drain again until the MacBook shuts down. It can then be charged and operated as usual.

Why don’t Apple replace just the battery?

Each cell in a MacBook Pro made after 2012 is stuck to the top case with a strong adhesive. Fortunately, MacBook repair Specialists can work around this, whereas Apple replaces the whole top case.

The extra parts mean that it is more expensive to use Apple to carry out a battery change.

Some models of the MacBook Pro (non-Touch Bar) made between October 2016 and October 2017 are eligible for a free battery replacement from Apple. This is down to a particular part failing, which causes damage to the battery.

If you want some advice about the performance of your MacBook Pro or suspect that your battery is failing, why not get in touch with us at Absolute Circuits. Based in Milton Keynes, we can offer appointments to anyone in the local area or offer a mail-in service for those further away.

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