It's better to fly with just one spare lithium.

Qingming small long vacation, the battery ready to travel in a few passengers, but you know to carry lithium batteries is not allowed to fly? Yesterday, shijiazhuang airportspecial security department issued lithium-ion battery(including recharging treasure) limit tips to remind passengers to travel safely.

The official Weibo of shijiazhuang airport'sspecial security department issued a warning yesterday about the restrictions on lithium-ion batteries, including rechargeable batteries. Weibo stated that small lithium batteries(rated energy less than 100Wh) can be carried with them for insulation measures; Medium lithium batteries(rated energy between 100-160Wh), complete insulation measures, and with the approval of the airline, this specification of spare batteries each carry a maximum of 2 pieces; Large lithium batteries(rated above 160Wh) are not allowed to be carried with them and are prohibited from being checked into luggage. If it must be transported, please follow the cargo dangerous goods process.

How should the rated energy of a lithium battery be calculated? In Weibo, the unit of rated energy for lithium batteries is "Wh"(Wh).

It is understood that most lithium ion batteries directly indicate rated energy, but some lithium ion batteries do not directly indicate rated energy. The formula for the specific conversion is: rated energy(Wh) = battery capacity(Ah) × discharge voltage(V). Among them, 1Ah = 1000mAh.

Take a mobile phone battery as an example. The battery capacity is 1700 mAh and the discharge voltage is 3.7 V. Its rated energy is 6.29 Wh through the conversion formula.

Yesterday, the reporter interviewed the security guard of shijiazhuang airport, the head of security. The person in charge said that the state has strict enforcement standards for passengers to carry lithium batteries on board the aircraft, and the band limit tips are also issued in accordance with the regulations. Usually found in the security check, passengers generally carry a mobile phone spare battery, or carry a laptop spare battery, will not exceed the standard. However, individual batteries such as lithium batteries used in wheelchairs are themselves excessive. Therefore, it is recommended that passengers with electronic equipment should carry only a spare battery with them to board the plane so as not to cause unnecessary trouble. "

The page contains the contents of the machine translation.