What is a size 5 battery?
A No. 5 battery, also known as an AA battery, is a common dry battery. It has a diameter of about 145 mm and a height of about 495 mm. No. 5 batteries are widely used in various electronic devices, such as remote controls, alarm clocks, flashlights, etc.
Why would anyone worry that a size 5 battery can't be carried on a plane? This is mainly due to the fact that there have been some incidents in the past regarding batteries**, which have led to airlines becoming stricter on the carrying of batteries. In fact, airlines' regulations on battery carrying are mainly due to safety concerns. Can a No. 5 battery be carried on a planeAccording to the regulations of the International Civil Aviation Organization (ICAO) and national civil aviation authorities, in general, passengers can carry a limited number of dry batteries on board. The specific regulations are as follows: the number of dry batteries carried by each passenger shall not exceed 2; The rated energy of a single dry cell battery shall not exceed 100Wh; All dry cell batteries must be carried in hand baggage and must not be placed in checked baggage. 
How to judge the rated energy of a No. 5 battery? Energy rating refers to the amount of energy that a battery can provide when it is fully discharged. Normally, a No. 5 battery has an energy rating of 15v×1.5a×3600s=8.1wh。As a result, the energy rating of a single No. 5 battery is well below the 100Wh limit. Under what circumstances can I not take a size 5 battery on board? Although No. 5 batteries can generally be carried on board, No. 5 batteries cannot be carried on board under the following special circumstances: battery damage or leakage; There is obvious expansion inside the battery; The battery is heated or exposed to high temperatures; A chemical reaction occurs after contact with other metal items. 
From the above introduction, we can conclude that under normal circumstances, passengers can carry a limited number of No. 5 batteries on board. As long as we follow the regulations and make sure the battery is intact, we can use all kinds of electronic devices to make our trips easier and more enjoyable!
Search Topic Full Attendance Challenge in November
How long can you visit Shanghai Disneytown?
Beijing Wudaoying Hutong travel guide.
What is included in the new form of tourism?
Nanchang Wanshou Palace Snack Street Raiders.
Fly science popularization