Laptop Battery Use And Maintenance Rules

- Sep 23, 2019-

Laptop Battery use and maintenance rules

Batteries are an important part of mobile devices. In daily life, our mobile phones, tablets and laptops are inseparable from batteries. In order to extend the life of the equipment, maintaining the battery is one of the most critical steps.

Much of the talk about battery use and maintenance stems from past battery technology, which can cause damage to the battery if applied to new technology batteries. For example, nickel-based batteries need to be fully discharged, while new-type lithium batteries should not be fully discharged.

Shallow discharge to avoid frequent full discharge

Both NiMH and NiCd batteries have a "memory effect" and require full discharge to maintain their storage capacity. New electronic devices basically use lithium batteries that have no memory effect. In fact, a fully discharged lithium battery is harmful. You should try a shallow discharge. For example, recharge when the power drops to 40-70%. Try not to let your battery charge be less than 20% unless you have to.

If a new lithium battery is discharged to 50%, charged, and then discharged to 50%, this will only count as a single "cycle." You don't have to worry about shallow discharge.


Of course, shallow discharge will cause a problem, and the laptop will incorrectly estimate the battery life. It is recommended that the user perform a full discharge every month to help calibrate the estimated battery life of the battery.

High temperature (cold) is harmful to the battery

High temperatures can reduce the capacity of the battery. This factor will affect all types of equipment, and even smartphones will heat up due to running programs. The laptop will also become very hot when performing load tasks. Laptop batteries are generally close to electronic components. When performing a large number of tasks, overheating of components can also damage the battery.

If your laptop is often turned on for a long time and the machine temperature is high, it is recommended to remove the battery to avoid the high temperature corrosion of the battery, thus improving the battery life. Laptops don't make much difference if they are only for normal work, but if users often play large games and the temperature is too high, removing the battery will help extend battery life. Of course, this only applies to laptops with removable batteries.

The climate of the region to which the user belongs is also a problem. If you live in a very hot place, or if your equipment is stored in a hot place. For example, in a car that is exposed to the sun in summer, your battery will wear out faster. So try to keep your equipment in a near-room environment and avoid placing it in a hot place.

Extremely cold temperatures can also reduce your battery life. Do not place the spare battery in the freezer. If the area you are in is extremely cold, do not place the battery-equipped device in an extremely low temperature environment.

The battery should not be fully discharged for a long time. Ideally, don't always discharge the battery to zero. If you do, you should charge it as soon as possible. If your smartphone is running out, don't panic, just don't throw it into the drawer and don't charge it for weeks. If you completely discharge the battery and don't care for a long time, the battery will lose its ability to store charge and eventually become completely damaged.

50% electricity storage is more scientific

On the other hand, after the battery is fully charged, it can be left idle for a long period of time, which may result in a decrease in the storage capacity and shorten its service life. Ideally, if you don't plan to use the device in the near future, it is more scientific to store the remaining 50% of the battery. Apple recommends that users do not use electronic devices for more than 6 months, it is best to store them when the power is 50%. If you use the device often, you don't need to worry about its status, you should not want the battery to be zero for a long time.

After the battery is completely discharged and stored, it may cause complete damage to the battery. When the battery is fully charged and stored, it may cause the battery to be stored in a lower capacity and shorten the battery life.

This technique applies to the battery in the device and the backup battery around you. If you do not use the device for the next period of time, please keep 50% of the battery.

It is ok to turn on the laptop at full time.

But the issue is controversial. We have already mentioned the problem of whether the full-time boot is correct. If we do not consider the battery temperature rise, we think that the laptop is fully turned on at the full time. In this regard, Apple has objections, and it is recommended not to turn on the macbook air and macbook pro notebooks at full time.

In fact, the things mentioned here are the same. When you are using your computer, there is nothing wrong with keeping the battery in place because the battery does not “overcharge”. The device will stop charging the battery when the battery reaches its peak. However, just as you should not put a fully charged laptop battery in a closet, if your notebook stays on for a few months, you should remove the fully charged battery. Occasionally, an appropriate discharge is required before charging, which will keep the electrons flowing and prevent the battery from losing its ability to store electricity.

“The worst case is to put a fully charged battery in a high temperature environment.” If your notebook generates a lot of heat, it might be a good idea to take the battery out. If you have a pretty cool laptop and occasionally discharge it properly, there is no problem even if you don't turn off the power for a few days. If your notebook gets very hot, you might consider removing the battery as described earlier.

The battery will eventually wear out

Like all other types of batteries, lithium batteries will eventually wear out over time and battery storage capacity will become weaker. Apple said that Apple's laptop battery will have only 80% of the new battery after "1000" full discharge cycles. Other manufacturers generally have a nominal range of 300 to 500 cycles.