What is the capacity of batteries allowed on board the aircraft?

During the Spring Festival, on January 31, a microblog issued by the official Weibo of Ducheng Airport on the gray machine with large capacity battery triggered a hot discussion among netizens. Temporary, whether it is a business trip or a trip, or the Spring Festival travels to the gray machine to go home, including some well-known bloggers in the industry have held discussions. The topic with the most commentary debate is “How much capacity can bring a large capacity battery to the gray machine?” In short, it is a large-capacity mobile phone, a camera, and even a camera, a tablet, and a notebook. These are commonly used portable equipment can be roughly used. Gray machine, probably can you go to the gray machine?

With the increasing number of digital configurations and the increasing capacity, everyone has more and more private equipment. Every time we encounter it, it is the security check time to take out the security check, but At the moment, we still have multiple consciousness, and we have not exceeded the standard. This is not to say that we are overweight but the total battery capacity of the electronic configuration that is carried with us is exceeded.

Today, we have a chat with everyone about the problem of carrying batteries, and we look forward to your time to take the machine to know if the configuration is too high and the airline's delineation is well known.

Interpretation 1: How is the airline delineated?

According to the International Civil Aviation Construction "Detailed Rules for the Safe Air Transport Skills of Injury Articles" (2011-2012 edition), visitors or crew members are private electronic devices (watches, tactics, etc.) containing lithium or lithium ion batteries or batteries. Cameras, mobile phones, laptops, camcorders, etc. should be carried as carry-on baggage, and the lithium content of lithium metal batteries should not be higher than 2 grams, and the rated energy of lithium-ion batteries should not be higher than 100Wh (watt hours). 100Wh, but not higher than 160Wh, can be installed in the running baggage or hand luggage after the airline promises, the lithium battery higher than 160Wh is strictly prohibited.

Backup batteries for portable electronic devices must be individually screened to prevent short circuits (insert the original retail packaging or insulate the electrodes in other ways, such as tape on exposed electrodes, or place each battery in a separate plastic bag or cover In the case of the box, and can only be carried in the hand luggage, only 100 can be carried by the 100-160Wh spare lithium battery promised by the airline.

There are about three points in the above information. We must be particularly stable:

1. The battery (mobile power) can't be checked in theory, and can only be carried with you;

2. The total capacity of the battery that no one carries with you can't be higher than 160Wh.

3. It is not necessary to report 100Wh. It is necessary to go with 100Wh less than 160Wh. Reporting;

Interpretation ofspecial can be set with a large capacity battery on the gray machine

With a large capacity battery on the micro-blogging micro-blogging hot discussion

II: What is the view of 100Wh?

"Wh" is the amount of electricity, which is how big the battery is (how hard). It is the amount that is proportional to voltage, current, and time. In addition, another parameter is “mAh”. mAh (mAh) is the basic unit representing the battery capacity. Usually, the capacity of a handheld battery such as a mobile phone is expressed by mAh, while electric vehicles and electric vehicles are used. The larger Ah (Ah) is the performance, ie 1Ah = 1000mAh. When the current intensity is measured in milliamps (mA), the time is measured in hours (h). The two of them are mAh, which means that a mobile phone battery with a capacity of 1000 mAh is using 1000 mA. At the current intensity, it is possible to provide approximately one hour of continuous power output. We usually say that the customs are short.

After understanding these two parameters, the conversion is easy. Usually a typical voltage value of a lithium battery is 3.7V, then a lithium battery with a capacity of 1000mAh is 3.7V×1Ah=3.7Wh.

100Wh is about 27Ah battery (the energy supplied) is converted to milliamperes (hours) is 27,000 kiloamps (hours).

Reference reading: "Before you buy, you must know about mobile power."

Interpretation 3: More than 100Wh, less than 160Wh. What is the point?

According to the relevant knowledge of "Interpretation II", we cannot figure out that more than 100Wh is less than 160Wh means that more than 27Ah is less than 43Ah battery (and battery total), but this department is necessary to report with the airline.

If you are 43,000 mAh above the capacity, you can't take the air, whether it is carrying or consigning.

Interpretation 4: What is the usual Wh value of the usual digital equipment?

Trusting many people is still a bit confused, probably not wanting to convert. Then we also provide some information about the power of our current common digital portable equipment.

Interpretation of the number of large-capacity batteries is on thespecial delineation.

If you put these configurations together, it is 40Ah (approximate value), according to the formula: 3.7V × 40Ah = 148Wh. According to the airline, it is between 100Wh and 160Wh, which belongs to the consignment category, but it belongs to the scope of demarcation, although this is an extreme environment.

Therefore, according to the normal valuation, with a mobile phone, a tablet, a notebook computer, a digital camera, there is no problem at all, although we choose the maximum configuration in the above table, it is about 80Wh, and It is lower than the scope of the report.

Interpretation 5: Will I surpass the standard in the Spring Festival?

Everyone really can rest assured that for ordinary people, our usual digital equipment is basically a mobile phone, a notebook, a camera, a tablet computer, such as the above strategy will not be higher than the value of 100Wh.

With the power consumption of the current digital configuration, the battery capacity has become insufficient, and the mobile power has become an alternative for many people. Usually it is 10,000 mAh of mobile power, the Wh number is about 37, because in the mobile power environment, it has to be particularly thin. If you bring a mobile phone, a tablet, a notebook computer, a digital camera environment, you must also bring a 10,000 mAh mobile power supply, according to the airline is scheduled to hold a report.

Interpretation 6: Is the lithium battery really easy to ignite spontaneously and explode?

First, there is a general knowledge. Generally speaking, lithium batteries are the two most common types of lithium batteries and lithium polymers. In fact, lithium polymer batteries are actually one type of lithium ion batteries. The biggest difference between the two is the difference in electrolytes used inside. Lithium-ion batteries use liquid electrolytes, while polymer lithium-ion batteries are replaced by solid polymer electrolytes.

Reference reading:

"Detailed really explosion lithium ion and lithium polymer batteries "

Lithium ion batteries are lithium innovative products, since the chemical properties of lithium metal is very lively, so the lithium battery often occur early combustion environment when utilizing the like. In order to restrain the vivid chemical properties of lithium metal, people decided to participate in other metal materials such as cobalt and manganese in the positive electrode of lithium battery, which greatly enhanced the quiet coefficient of early lithium batteries. The most exemplary is the 18650 we mentioned every time. Lithium polymer batteries using solid polymer electrolytes have higher energy density than ordinary lithium-ion batteries, which means that lithium polymer batteries have lighter weight and higher on the premise of the same volume.

In fact, whether it is a steel-shell lithium-ion battery or a soft-packed lithium-ion battery, the performance in quiet performance is always wonderful in black and white. After all, the production skills of lithium-ion batteries are very mature, as long as they are used in the same way, they are restrained from high temperature and short circuit. The emergence of overcharged, pierced and other environments can preclude the emergence of unexpected environments such as "explosions" and anger. The demarcation of civilspecial is to think about tranquility. After all, people fly in the sky. The peace and quiet of so many people must be considered and serious, so visitors should cherish and understand and support.

Interpretation 7: The transportation essentials of the backup battery (how to carry the battery core, mobile power supply?) The

Battery is bare, with electrodes, there is a short circuit damage. Whether it is consignment or carry-on, because there will be a chance of metal snoring, a short circuit will probably occur. The biggest damage to a short circuit is that it converts electrical energy into heat, which is the ultimate challenge to the battery itself.

Therefore, it is necessary to do insulation treatment to restrain the opportunity of short circuit of the bare battery electrode. The quickest step is that the tape attached to the official Weibo is arranged in a plastic bag (paper bag). As shown below.

Interpretation ofspecial delineation can bring a large capacity battery on the gray machine.

Our common rendezvous battery shape

Interpretation of the air delineation can bring a large capacity battery on the gray machine

Simple and practical cover step

Usually, if our spare mobile phone is to be checked, it is actually that even if the battery and the mobile phone are to be evacuated, there is no step in the integration of the battery and the mobile phone. This is also a quiet consideration.

Regardless of whether the consignment is about to carry a separate battery with us, we still recommend that you do a short-circuit treatment.

Because the mobile power supply has independent switches and has a casing, it is theoretically unnecessary to protect. But it reminds visitors to be prepared for anti-collision, even if it is wrapped in soft clothing. Whether it is hand luggage or consignment, it is best to follow the above essentials.