Is it okay to operate?The secret to lasting a tablet PC battery maintained by the GIGA School Concept!

Educational industry

<< Self -introduction >> In charge of iPad introduction operation support for educational institutions.More than 100,000 iPads have been involved in school introductions.In addition to the iPad itself, it has the knowledge of Apple School Manager and Apple Configurator, a school solution provided by Apple, and has a wide range of products, including a wide range of products such as peripheral devices and MDMsWe propose and provide optimal solutions to educational institutions.In March 2019, he was certified as an Apple Professional Learning Basic Instructor.

Until now, we have been working to introduce iPad into educational institutions for many years, but the GIGA School Concept has introduced a large number of tablet PCs throughout Japan, and the Board of Education in the future management and operation, the Board of Education.There was something important to know the teachers, so I would like to take this opportunity to tell you.

Be careful when storing a tablet PC in summer!

Photo by pixTa

As one of the measures to prevent the new colon virus infection, the class progress due to the fact that schools nationwide were taken all at once, but the classes were satisfied due to the variation of education ICT environment for each local government.There are not a few local governments that have not been able to do so, and this triggered the Ministry of Education, Culture, Sports, Science and Technology's initial roadmap, starting with the development of 5th and 6th graders and first -year junior high school students in 2020, small in 2023.The GIGA School Conceptual Tablet PC introduction plan, which was planned to be maintained for the first or second graders, has been ahead of 2020, and most of the local governments will be introduced in the tablet PC for all students in FY2020.

In addition to the tablet main unit, the education ICT environment in the school by the GIGA School Concept includes a charging protection shelf for tablet PCs to be installed and introduced.

Although one tablet PC for each person will be introduced, the method of assigning those information equipment is left to each Board of Education and National University Corporation, but the important story I want to tell you is to the children's house.It applies only to the case to be stored in the school without taking a take -out measure.

Please see the photo below.

The photo shows the iPad itself in a horizontal direction from the side.You can see that the iPad body parts and display parts that are usually adapted are in a state where the lid has opened.

Also, I would like to see the next photo,

This photo is a picture of a similar symptom in Microsoft Surface, but you can see that there is a gap between the display parts and the main body part.

The cause of the trouble is gas generated in the battery pack

What is the case introduced in the above two devices? In both iPads and Surface, gas occurs and fills in the battery packs equipped with almost all information equipment, and the battery pack swells due to gas.It seems that the power has been lifted up and the display parts that are glued to the main body parts are lifted and separated.

I think that the grounds in the above explanation will be more clear if you can see the photo below.

It will be taken a little closer to the Surface I saw earlier, but I think the silver part between the main body parts and the display parts is a battery pack, but this is actually expanding.I think you can understand that.You can also check the wrinkles that seem to have been on when expanded on the side of the pack.

These information equipment is stored in a charging storage in the school, and if you do not use it, it has been charged all the time during that time, and the storage location is not a room that is always air -conditioned. did.

Regarding the handling of the battery of these information equipment, each manufacturer has published it as official information, so I would like to check that.

Microsoft

"Avoid using or charging at an extreme high temperature: If the device is charged or operated at high temperatures, the deterioration of the lithium -ion battery accelerates and the battery charging capacity is completely lost.Since the Surface device is designed to operate from 32 ° F to 95 ° F (0 ° C to 35 ° C), do not leave it away from sunlight and leave it in a high -temperature car.

Management or storage in a high charging state: If the battery is kept in a high charging state, the capacity will be reduced faster.Leaving the device to the AC power supply for a long time can prevent this deterioration acceleration.Before re -charging, make sure that the device is always discharged to less than 50%.If you need to continue connecting the device, we recommend that you use the battery -restricted mode to limit the battery charging status.If you need to keep the device for a long time, it is recommended that you lower the charging level to 50% before storage, check the battery regularly, and confirm that it has not dropped to too low.increase.

If the battery deteriorates excessively, the life of the battery may be extremely shortened or the expansion of the lithium -ion cell may progress.Under normal conditions, the Surface device is designed using a mechanical storage device that is housed even if the battery expands.Under extreme conditions, the battery may expand and deform beyond the mechanical restriction of the device.]

Apple

Photo by pixTa

"The Apple device is designed to work correctly within a wide surrounding temperature range, and the optimal range is 16 ° C to 22 ° C.It is especially important not to expose the device to the surrounding temperature exceeding 35 ° C, as the battery capacity can be damaged.If you are damaged, the time when the battery can drive the device in one charge will be shorter than usual.Please note that charging devices in high peripheral temperature can cause more serious damage.If the recommended battery temperature exceeds the recommended battery temperature, the charging may be limited to 80%or more software.Even a battery storage in a hot environment can give batteries that cannot be recovered.]

Each device uses a lithium -ion battery for the battery, pointing out that it may cause serious damage to expose to high fever higher than 35 ° C.Also, in the Microsoft description, the specific description of the expansion of the battery cell is also made.

There are not a few places where air conditioning is well -maintained in the school building, and I think that the fact is that the storage location of information equipment that is vulnerable to high temperature often has to worry about.

If there is not much space in the classroom, there are many cases where storage is installed by the window or in a corridor without air conditioning equipment, so it is relatively susceptible to outside temperature.Isn't it?

Until now, I think that there were dozens of information equipment introduced in schools only for some part of the school, but it is said that there are dozens of images in one school, but almost 1 person is developed in the GIGA school concept.In order to be introduced on the platform, each school is constantly cooling in the summer, but I think that the situation will be different for each school, whether it is possible to store tablet PCs for everyone, but all units are different.In some cases, it may be difficult to store.

This time, we have not posted a case, but I think that there are many lithium -ion batteries on Chromebook, so if you are not careful about the storage method, I think there is a good chance that you will have the same trouble.

In addition, besides high fever, the battery may put a burden, which may be the case where the display is kept all the time.

Photo by pixTa

By using a keyboard integrated case, which is often deployed with the iPad itself in the GIGA school concept, it is designed to be a sleep state in conjunction with the display when the case lid is closed.When storing in the storage room, the sleep status is released due to a broken case lid, and the battery will be loaded for a long time by continuing to charge while the display is lit.Ideally, in the case of school storage, I think it would be better to operate the used tablet PC with the rules to turn off the power before returning to the storage.

Tablet PCs that have been maintained in the GIGA School Concept want to last a little longer.In order to achieve that purpose, I would like to understand the characteristics of the information equipment terminal that is vulnerable to heat and implement appropriate operation throughout Japan.

Ideally, if you can assign one tablet PC to an individual student, take it home when you leave school, and bring it from home when you go to school, the risk of the battery expansion problem mentioned this time will be slightly reduced.I think I can do it.

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Educational industry