It is common to carry a power bank when traveling by train, as it can provide sufficient power for our electronic devices such as phones and tablets, ensuring that we do not suffer from low battery during the journey. However, when carrying the power bank, we also need to comply with relevant regulations to avoid unnecessary trouble.

Firstly, we need to understand the battery limit of the power bank. According to the regulations of the Civil Aviation Administration of China, the rated capacity of power banks carried on civil aviation flights cannot exceed 100Wh, while the rated capacity limit of power banks on trains is relatively loose, with a maximum limit of 160Wh. Therefore, when choosing to carry a power bank, we need to pay attention to whether its rated capacity meets the regulations to avoid being unable to carry it due to exceeding the limit.

Secondly, we need to pay attention to the safety of the power bank. Because power banks are a type of battery, if used improperly or of poor quality, there may be safety hazards. Therefore, when purchasing power banks, we need to choose legitimate channels and purchase products that meet national safety standards. When using the power bank, we also need to pay attention to the following points:

1. Avoid prolonged overcharging or excessive discharge.

2. Avoid using or storing in high temperature environments.

3. Avoid using improper chargers or data cables.

4. Avoid short circuits or collisions with the power bank.

Finally, we need to comply with the regulations in the station and carriage. Some stations and carriages may impose certain restrictions on the carrying of power banks, such as limiting the quantity and requiring them to be carried with them. Therefore, when carrying the power bank, we need to comply with the regulations in the station and carriage to avoid unnecessary trouble.

In short, carrying a power bank is very convenient, but we also need to comply with relevant regulations to ensure safety and convenience during the journey. When choosing a power bank, we need to pay attention to its rated capacity and safety, and also comply with the regulations of the station and carriage when carrying it.