Laptop battery is a precious resource of the laptop. Extending the lifespan of laptop battery not only cost you less but also reduce its negative impact on the environment. Most of laptop batteries fails in 1-2 years only, depending upon its usages. But you can make it lasts for more than 3-4 years. This is done by proper maintenance of the battery. This will not only increase the lifespan of laptop battery but also improve day-to-day backup of the battery.
If you are only interested in increasing day-to-day backup of laptop battery then you should read our Special guide on 7 Tips to Increase Battery Backup of Laptops [Rocket Push]. Otherwise, to increase lifespan of lithium-ion batteries, commonly used in laptops, here are best tips of proper maintenance of battery that will surely increase the life of the battery.
5 Tips to increase Lifespan of Laptop Battery
Never use Laptop when battery charge level < 20%
Batteries whether it is in laptop or in your household UPS, completes some discharge cycles that decide its lifespan. For example, a laptop battery may last for ~300/600 deep discharge cycles. The deep discharge means complete discharge that is from 100% to 0%. If you discharge your battery up to 80% only, i.e. no deep discharge, then the battery will cover more discharge cycles, says 700-800 cycles. That’s why you should never use your laptop when the battery charge level is below 20%. As soon as, battery charge level falls below 20%, just recharge it.
As a thumb rule, recharge your laptop battery as soon as you get the opportunity to recharge it. The smaller the depth of the discharge, longer will be the lifespan of battery.
2. De-attach Laptop battery when NO Power Interruption
You should de-attach laptop battery when there is no power interruption while using laptop. This is the common case, when you are at home or office and using laptop with the charger plugged in. At that time you are just wasting battery cycles. Batteries are for backup purposes only. You should make judicious use last it for longer life. You can remove laptop battery when you have a power source (Recharge point) nearby. It’s best to give your laptop battery a breather by removing the battery every time it’s not in use.
3. Always charge battery ~90%
For lithium ion batteries, commonly used in laptops, it is advised that the battery should not be fully charged. First, Li-ion batteries experiences a temperature rise of about 5ºC (9ºF) when reaching full charge. This could be due to the protection circuit and/or elevated internal resistance. Second, these fully charged batteries cause a high voltage stresses to the battery. So, it is better not to fully charge it, to prolong its life.
4. Keep Laptop Battery Cool
Keeping the battery not only increases its life span but also improve the performance of your laptop. The worst thing that can happen to laptop battery is keeping the battery at elevated temperatures. At elevated temperatures, the run time of battery gradually shortens. So to increase the lifespan of laptop battery, provide adequate air circulation to the battery compartment. While using laptop in bed, use a heat sink to lower the temperature down. Do not ever let the bed sheet stop the air circulation.
5. Add charge (40%) before long storage
Lithium-ion batteries must be stored in a charged state, at a 40 percent charge level. This prevents the laptop battery voltage from dropping below 2.50V/cell, thereby, leading to a stable more called as sleep mode. The 40 percent charge allows a stable condition even if it means a level of self-discharge. Some reserve charge is necessary to keep a battery and its protection circuit operational during long periods of storage.
And two more tips:
- Don’t use your laptop for playing games as this will consume your battery power very fast and also it will gradually decrease the lifespan of laptop battery.
- When purchasing laptop battery, check out the manufacturing date on the battery. The lifespan of a lithium battery starts producing the time it leaves its factory. It can be expected that around 20% of a lithium battery’s charge is lost after every year of its lifespan, from its original manufacturing date, no matter how well you take care of the battery.