Sunday, 2 October 2016

Is It Safe To Leave My Laptop Plugged In All The Time?


Is it safe to leave my laptop plugged in and charging when you’re not on-the-go? What’s best for the battery? What’s best for your user experience? Today’s Question & Answer session comes to us courtesy of KraftyShare. Read on as we investigate.

More than one KraftyShare reader was curious about the whole matter of laptop batteries and wall current.

ALSO READ: Laptop Buying Guide: How To Buy The Right Laptop

The Question 

When your laptop’s battery is 100% charged, should you leave it plugged in so any battery power doesn’t get used, or will that cause overcharging, overheating, etc.? Should the laptop be unplugged when the battery level is 100%?

A similar question asked by samuel:

When I’m at home, is it better to use the laptop plugged into AC power, or with just the battery, for the overall battery life?

So what was the verdict? Should you leave your laptop almost perpetually tethered to the wall or only charge it when the battery charge is running low?



The Answers

The answer to the question isn’t a cut and dry “Yes, leave it tethered” or “No, unplug it”  because of the variety of laptop designs, their battery types, and the integrated charging circuit that recharges the battery.

It won’t make all that much difference. What will shorten battery life is temperature: If it gets hot, it will shorten the battery life. Best thing to do, if you are able, is to remove the battery while you’re at home and keep it somewhere cool.

If it’s a Li-ion battery, then they don’t like to be completely discharged, so make sure you charge them regularly.

Lithium-ion batteries should not be frequently discharged fully and recharged (“deep-cycled”), but this may be necessary after about every 30th recharge to recalibrate any electronic charge monitor (e.g. a battery meter). This allows the monitoring electronics to more accurately estimate battery charge.[26] This has nothing to do with the memory effect.


How do I maximize my battery life?

What about the “Remove the battery!” camp? It turns out that while removing the battery can be beneficial, the situations in which it is beneficial are fairly limited.

The answer: “it depends”

The answer is: YES and NO, it depends on the situation.

Having a battery fully charged and the laptop plugged in is not harmful, because as soon as the charge level reaches 100% the battery stops receiving charging energy and this energy is bypassed directly to the power supply system of the laptop.

ALSO READ: 6 Easy And Simple Ways To Make Your PC Perform Faster And Better

However there’s a disadvantage in keeping the battery in its socket when the laptop is plugged in, but only if it’s currently suffering from excessive heating caused by the laptop hardware.

In a normal usage, if the laptop doesn’t get to hot (CPU and Hard Disk around 40ºC) the battery should remain in the laptop socket;
In an intensive usage which leads to a large amount of heat produced (i.e. Games) the battery should be removed from the socket in order to prevent unwanted heating.
The heat, among the fact that it has 100% of charge, is the great enemy of the lithium battery and not the plug, as many might think so.

The best plan of attack then, is to monitor your hardware to ensure you’re not overheating your battery and be concious of the limitations of the type of battery in your device–for the majority of users, a Lithium-Ion battery.


More article on laptop tips coming soon, Stay tuned!

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About Author

Engineer Alex is a part time blogger and tech geek from Nigeria. Apart from blogging he is a student. He loves to write about technology, blogging, SEO, Internet Marketing, Make Money online, Social Media, Android, Windows and other interesting topics likes technology solutions. He is Founder of KraftyShare blog and He love to share what he knows.

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