Dimensions and specifications of No.7 battery

The standard dimensions of No.7 battery are: the battery height is 43.6 0.5 mm, and the diameter is10.10.2 mm. ..

AAA battery is the American dry battery standard, and Chinese mainland's No.7 battery is compatible with it. The battery is cylindrical, with a height of 43.6 mm and a diameter of10.1mm. It is an ordinary battery and smaller than AA battery. It is often used in electronic products with small volume and low power consumption, such as MP3 players and small remote controllers. There are disposable alkaline batteries, rechargeable nickel-hydrogen batteries and lithium-ion batteries.

Battery No.7 is a chemical battery that uses paste electrolyte to generate direct current (wet battery is a chemical battery that uses liquid electrolyte), which can be roughly divided into primary battery and secondary battery. It is a common portable battery in daily life.

Can I take the No.7 battery on the plane?

In theory, the battery can't be checked and can only be carried with you, but whether it is used for carrying or carrying, you can take the No.7 battery on the plane. First of all, the inspection of battery 7 is not prohibited. It can be checked on international and domestic flights, but it needs to be properly kept to avoid battery short circuit.

The total content of portable lithium-ion batteries should be controlled at more than 8 grams but not more than 25 grams. In order to protect the watch case from short circuit, it can be carried in hand luggage, and the spare battery is limited to two pieces per person.

Portable electronic devices containing lithium-ion batteries for personal use, such as calculators, watches, mobile phones, cameras, notebook computers, portable cameras, etc.