What happens when you use a computer at low temperatures?

In the recent period, there have been news reports that various iPhones have been automatically shut down at low temperatures. Even the China Consumer Association can not sit down and send a query letter to Apple. This has also led to the thinking of the editor. Is this what happens to our laptops when they are used at low temperatures?

What happened to the automatic shutdown of the iPhone?

According to news reports in recent days, there are currently a large number of iPhone 6 and iPhone 6s mobile phone users will automatically shut down when they are fully charged. This problem still exists after upgrading the system, and it will also cause automatic shutdown at low temperatures. According to the latest news, China Consumers Association has sent an inquiry letter to Apple.

Lithium-ion batteries are susceptible to temperature. What happens to low-temperature computers?

According to Apple AppleStore staff, the hardware inside the phone, the operating system version, and the use temperature may all lead to the automatic shutdown of the iPhone. In the event of an abnormal shutdown, you can contact the seller.

In fact, the news of the automatic shutdown of the iPhone at low temperatures was spread several years ago, and friends concerned about the relevant news believe that they have also heard about it. According to my experience, my iPhone 6 has also experienced several automatic shutdown cases, but they have all been encountered at low outdoor temperatures, at least below 0 degrees.

Take the current Beijing temperature as an example, the minimum night is also around 0 degrees, the author believes that because of the temperature, the possibility of shutdown is low. It is difficult to guess why the iPhone automatically shuts down in large areas. We do not pursue it here. Of course, this time we're not talking about cell phones, so let's see what happens to laptops at low temperatures. Will they shut down?

What happens to laptops when they're cold?

People might say, would anyone use a laptop outside in the cold? Indeed, most of us don't use laptops outdoors as frequently and frequently as we do mobile phones, especially when the temperature is low. So let's talk about what should be noticed when using a laptop in a cold environment.

We continue to take the example of Apple's new MacBookPro, which operates at 10-35 degrees Celsius, which is supposed to represent the vast majority of laptop operating temperatures at Apple's industrial design level. At the same time, we also noticed that its storage temperature is -25 -45 degrees Celsius, and it can be clearly seen that the storage temperature range is wider than the operating temperature.

In practical terms, most of us use laptops less frequently than mobile phones and do not use them outdoors for long periods of time, especially when temperatures are below 0 degrees Celsius. If you have to use a laptop in a cold environment, it will not take long. If it is below 0 degrees Celsius for a long time, the following situations may occur:

1, the battery activity is greatly reduced, causing a sudden shutdown or sudden drop in power, and can not be recharged

At present, most batteries are affected by the temperature, and the lower the temperature, the lower the electrochemical reaction activity of the battery. According to experience, lithium batteries are not significantly affected by temperature between 0-40 degrees Celsius, and once the temperature exceeds this range, the life and capacity will be reduced. The temperature is too low, and it is very likely that the power will plummet and suddenly shut down.

2, using a mechanical hard disk computer hard drive boot slow, long response time and so on

The second one that could have a big impact is the mechanical hard drive, and if your computer is still using the mechanical hard disk, then pay attention. The operating temperature of most mechanical hard disks is 5-60 degrees Celsius. Too low a temperature may lead to reduced flexibility of internal mechanical parts, resulting in slower speeds.

3, electroshock through the internal parts

Winter in the North not only brings cold, but also low air humidity, more prone to static electricity, more intense static electricity may cause damage to the internal parts of the notebook. However, at this stage, laptops have often done a good protection against static electricity. This situation has been very low.

But then again, at this stage, few people will use laptops for a long time in the outdoor area below 0 degrees Celsius. The above can only happen for everyone's reference.

The field of expertise is different.

Laptops or mobile phones that come into contact with daily life are basically consumer grade electronics. And is this the case with laptops in professional fields?

The answer is no. I have tested a fully sturdy model of Dell's laptop, which is built with a military standard, and its strength is not limited to having a hard shell, high impact resistance, and seismic resistance. It has IP65 dust resistant and waterproof capabilities, and its operating temperature (-29 ~ 63 degrees Celsius) is also not achievable by ordinary notebook computers. Such a computer can deal with a variety of complex environments, regardless of temperature, weather, etc., so it is simply prepared for firefighters, military, special parts, this group often needs to use computer groups in multiple complex environments. This is also the advantage of full-strength models in the professional field.  

Notebook batteries are used well

I remember playing four-wheel drive when I was a child. When the battery didn't have power to run, I could heat the battery and run for a while. In fact, the impact of using batteries in the process of using electronic devices is still quite obvious. Regardless of whether there are other reasons for the automatic shutdown of the iPhone, I eventually recommend that everyone develop the habit of using batteries correctly.

1, maintain good charging and discharging

In addition, most of the electronic devices we come into contact with use lithium batteries. The capacity of lithium batteries will naturally decay. If there is sediment generated in the internal reaction of the battery, it will affect the capacity and life, so you should use the battery reasonably. Do not charge the laptop battery for a long time. Release the battery's remaining power reasonably. Ensure that the battery cycle is at least once a month. According to experience, the battery capacity can be recycled between 50 % and 80 % to maintain a higher life span. When running a higher load program, it can be connected to the power supply, otherwise use the battery.

2, charge less than 20 % and charge to 100 % for another half hour

Moreover, it is recommended that the battery should be charged below 20 %, because the battery has low power and low voltage, and long-term low voltage conditions can cause harm to lithium batteries. It is also said to work to make it more permanent, by filling it up 100 % and then filling it up for about half an hour.

3, as for temperature

We still have a very good chance of using the mobile phone under 0 degrees, so I can only advise you to avoid using the mobile phone in the lower temperature outdoor, such as the iPhone, the design logic of the relatively sophisticated electronics will not only actually cause sudden shutdown situation. Other electronic devices believe that the frequency of use at low temperatures is believed to be lower.

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