Does charging laptop battery when fully charged is harmful to laptop?

Laptops are an expensive device and are also prone to malfunction, so protecting them is essential. We often find ways to protect laptops a...


Laptops are an expensive device and are also prone to malfunction, so protecting them is essential. We often find ways to protect laptops and reduce damage when dropped with a good briefcase, to avoid water flowing into the machine causing component damage ...

What happens when the laptop charger cable plugged continuously?

However, there are many people wondering how to use the best battery of the machine. They wonder if continuing to plug the charger when the battery is full will affect the battery life? The answer here is that you can be assured that it will not harm the battery as well as the entire system.



Some manufacturers encourage users to regularly leave the laptop in the state of plugged charger.

Manufacturer's instructions
Laptop manufacturers always provide complete information on how to charge the battery in the user manual included with the device, or on their website. In it, the manufacturer will have a note on how long the charger should be plugged in for how long is enough. Some major manufacturers such as Dell, HP, Acer encourage users to regularly leave the laptop in a state of plugged charger. If you do not find any information about charging time in the manual, you can contact the manufacturer's support directly to know exactly.

Design of battery
Depending on the design will determine the maximum capacity and performance of the battery. Most laptop batteries today have a function that automatically disconnects charging when the battery is full. So plugging in the charger will not adversely affect the battery or the device. Moreover, the number of times the battery is charged and discharged will increase, while the number of times the battery will be charged may be limited. So if you unplug every time the battery is exhausted, it can make the battery go down faster.

If your computer is constantly connected to a power source, you can disconnect and use the battery every 2 weeks.

If your laptop has been recently purchased in recent years, when Lithium battery technology has become more commonplace, you should avoid emptying it before recharging it, as doing so will affect the battery life. In some cases, the battery will be completely drained before the charger is plugged in, but then the battery is gone forever, unable to get into electricity. If your laptop battery is an older nickel-metal hydride battery, do so.

Temperature


The charger usually does not affect the temperature of the device.

The underside of a laptop is usually quite hot after only a few hours of use. This sometimes leads to the misunderstanding that plugging in the charger causes the temperature of the device to heat up. However, the heat generated on the underside of the laptop is from internal components and you can use a cooling fan to fix this. The charger usually does not affect the temperature of the device.

Battery bottle
Battery bottles are an inevitable part of using a laptop, no matter how carefully you charge them. To reduce battery drain, you can unplug the device when not in use.

What happens if you plug in a laptop charger constantly?
Lithium-ion battery

Lithium-ion battery.

Most modern laptops use lithium-ion batteries, like in many smaller consumer devices, like watches and flashlights. These batteries can be charged hundreds of times without affecting battery life. They have an internal circuit that stops charging when the battery is full. The circuit is essential because without it, the Li-ion battery may overheat and burn when charging. The lithium-ion battery cannot overheat while in the charger. If so, remove the battery as it may be defective.

NiCad and NiMH batteries
Old laptops use NiCad and NiMH batteries. These batteries require more maintenance than lithium-ion batteries. NiCad and NiMH batteries must be fully discharged and then recharged once a month for optimal battery life. Leaving them plugged in after a full charge does not significantly affect battery life.

Mac Notebook battery
Apple's MacBook, MacBook Air and MacBook Pro come with non-replaceable lithium polymer batteries, which provide maximum battery life in a compact space. To check battery health, press and hold the Option key while clicking the battery icon in the menu bar. You will see one of the following status messages:
- Normal: The battery works as expected.
- Replace Soon: The battery works normally but charges less than when used.
- Replace Now: The battery works normally but charges significantly less than when used. You can still use your computer, but if its performance is affected, take it to a reputable Apple service center to replace the battery.
- Service Battery: The battery is not working properly. You can use your Mac when it's connected to a charger, but you should bring it to an Apple service center as soon as possible.

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High Tech Brain: Does charging laptop battery when fully charged is harmful to laptop?
Does charging laptop battery when fully charged is harmful to laptop?
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