Apple considers a MacBook battery to be at the end of its life after 1000 cycles, which is roughly equivalent to five years of regular use. As the battery ages, you may notice that your laptop's battery life is getting shorter and shorter, and your touchpad may not work as well as it used to. Most modern Macs come with a cycle count, which helps us understand how long the battery should last and when it needs to be replaced. According to Apple, most current Macs (MacBooks, MacBook Airs and MacBook Pros) have batteries that can last up to 1000 cycles.
This is enough for at least three years of regular use. The battery life of an Apple MacBook is something that laptop users dream of. It's normal for MacBook Air users to have 12 hours on a single charge, and MacBook Pro users should have several hours, even if the laptop is a few years old. However, battery life will worsen over time - there's nothing anyone can do to prevent it.
The problem arises when it's time to replace the battery. Apple laptops are not designed to be replaced by the public, which makes some people think that they are not replaceable at all. That's not true - the battery in a MacBook, whether it's a MacBook Pro or an Air, can be replaced with a new model and used for many more years. In terms of concrete numbers, the 14-inch MacBook Pro has a 70-watt-hour battery and the 16-inch MacBook Pro takes it up to the FAA's 100 Wh limit (the 13-inch MacBook Pro M1 has a 58.2 Wh battery, for comparison).
Upgrading your MacBook battery with an OWC replacement battery will extend the life of your laptop for many years.