In this era, our mobile phones hardly ever leave our hands”. Similarly, our power banks have also become common daily necessities in our lives. However, when taking an airplane, we will find that although the power bank can be carried on the airplane, it cannot be checked in the luggage. Why? In today’s post, you will learn why you can’t check in for a flight with a power bank.
Is A Mobile Power Bank Safe On A flight?
First of all, let’s take a look at the structure of the power bank~
It is a new type of lithium battery polymer power storage device with its own charging plug. A power bank can store a certain amount of power according to the capacity and directly charge mobile devices through AC power, which is equivalent to a large-capacity lithium battery device backup battery.
Lithium is an extremely unstable metal. Air pressure changes greatly when the aircraft is flying at a high altitude. If bumps or luggage collide with each other, lithium-containing batteries or power banks are squeezed. In this case, sparks are easy to produce, which may cause damage to the flight. Safety and security are priceless in an airplane.
Furthermore, if the power bank is carried on the plane, once something abnormal happens to the power bank, it is easy to find out and put it out in time to reduce losses.
What kind of Power Bank can be Taken on The Plane?
The Civil Aviation Administration of many countries clearly stipulates that passengers carry power banks in line with the following guidelines:
- It is strictly forbidden to carry power banks in checked baggage.
- Also, it is strictly forbidden to carry power banks with rated energy exceeding 160Wh. You can carry power banks with rated energy exceeding 100Wh but not exceeding 160Wh must be approved by the airline.
- It is strictly forbidden to carry power banks with unclear marks.
- It is strictly forbidden to use the power bank during the flight.
- In addition, It is strictly forbidden to carry the power bank for non-personal use.
How to Determine That my Power Bank Complies with the Regulations?
Although the announcement has clear requirements for the power bank to be carried on the plane, I believe that there are still many people out there who have no concept of “100Wh” numbers. Don’t worry, I will teach you how to calculate the Wh of your power bank so that you can pre-determine if you can carry it on your flight or not.
How to Determine The Wh(watt-per-hour) of a Powerbank
How to determine the rated energy of a power bank If the rated energy Wh (watt-hour) is not directly marked on the power bank. The rated energy of the power bank can be converted as follows:
If the nominal voltage (V) and nominal capacity (Ah) of the power bank are known, the value of the rated energy can be obtained by calculation: Wh = V x Ah The nominal voltage and nominal capacity are usually marked on the power bank.
If only milliampere-hour (mAh) is marked on the power bank, divide the value by 1000 to get ampere-hour (Ah). For example, the nominal voltage of the power bank is 3.7V, the nominal capacity is 760 mAh, and its rated energy is 760 mAh ÷ 1000 = 0.76Ah3.7V×0.76Ah=2.9Wh.
See the example below:
my power bank has a nominal maximum voltage of 3.4v, it has an mAH or 20,000. to calculate my wH, 20000 mAh ÷ 1000 = 20( 20 x 3,4v) = 68Wh. As you can see 68Wh IS WAY BELOW 100Wh meaning this particular power bank is safe to carry on an airplane.
In addition to power banks, some watches, calculators, laptops, cameras, etc. contain batteries, so be sure to check before flying!