Laptop battery life depends on several factors, including variables such as the laptop’s power requirements, the number of batteries in the battery, and the age of the laptop. While lifespans will vary, one thing’s for sure: At some point, the battery will stop charging. Back then, your laptop needed to be plugged in all the time, functionally making it a desktop computer. Let’s take a closer look below!
charge and discharge cycles
Like any rechargeable battery, your laptop can be recharged and drained many times before it can no longer be recharged. Manufacturers call this a “charge and discharge” cycle. Every laptop will be different, but the average charge and discharge cycle for each battery will typically run for 18 to 24 months, after which the battery will no longer be fully charged. Since you typically charge your laptop before the battery is fully discharged, many manufacturers count any discharge of 70% or higher as a discharge cycle.
Why do batteries age
Laptop batteries degrade from the moment they leave the assembly line, but the decay process is slow. Every time a battery is used, it undergoes a chemical change to transfer energy. Because this change is not 100% efficient, the battery will degrade over time to the point of being completely unrechargeable.
protect your battery
While battery decay is inevitable, you can extend the life of your battery. Typically, you want to avoid thermal and power surges. Keeping the battery between 20% and 80% will maximize its lifespan as this will prevent the battery from overheating. Also, it would be beneficial to keep the battery in a moderate temperature environment. The best storage condition for batter is 40% charge in a cool environment. Leaving the laptop plugged in during use creates a “trickle effect” where the battery constantly receives a small amount of charge. This will shorten the life of the battery.
charging myth
One of the most popular myths about battery charging is that you should completely drain your battery before charging. This works better with older batteries, but lithium-ion batteries don’t benefit from this strategy. Instead, these batteries should be partially drained and partially charged to extend functional life. Another myth of extending battery life is putting the battery in the refrigerator, but that doesn’t preserve the charge capacity of a lithium-ion laptop battery.
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Thanks for reading, hope it helps!
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