How to check the capacity of power bank

How to check the capacity of power bank

With the popularity of mobile devices, power banks have become a must-have for modern people when traveling. However, faced with the dazzling array of power banks on the market, many consumers are confused about how to choose a product with appropriate capacity. This article will analyze in detail how to check the capacity of a power bank and provide you with a practical purchasing guide based on hot topics on the Internet in the past 10 days.

1. Basic concepts of power bank capacity

The capacity of a power bank is usually measured in milliampere hours (mAh), indicating its ability to store electricity. However, the actual output capacity will be affected by factors such as conversion efficiency and voltage. The following is a comparison table between common power bank capacity and actual output:

2. How to correctly check the capacity of the power bank

1.View product identification: Regular power bank will clearly indicate the rated capacity (usually less than the nominal capacity) on the body or packaging.

2.Calculate actual output: Considering the conversion efficiency (about 60-70%), the actual output capacity = nominal capacity × conversion efficiency.

3.Use professional testing tools: Such as USB current and voltage detector, which can accurately measure the actual discharge capacity of the power bank.

3. Recently popular power bank purchasing topics

According to the hot spot data analysis of the entire network in the past 10 days, the power bank topics that consumers are most concerned about include:

4. Suggestions on purchasing

1.Choose capacity based on your needs: 10000mAh is recommended for daily commuting, and 20000mAh is recommended for long-distance travel.

2.Pay attention to conversion efficiency: The conversion efficiency of high-quality power bank can reach more than 80%.

3.View certification mark: Look for CE, FCC and other safety certifications.

4.Pay attention to the charging protocol: Ensure compatibility with your device.

5. Precautions for using power banks

1. Avoid long-term storage with full power. It is recommended to maintain 50%-80% power.

2. Use original or certified data cables to ensure charging efficiency.

3. Avoid use in high temperature environments to prevent battery loss.

4. Check the appearance regularly. If any bulge is found, stop using it immediately.

Through the above analysis, I believe you have mastered the method of checking the capacity of power bank. When purchasing, you should not only pay attention to the nominal capacity, but also consider key factors such as actual output and conversion efficiency to buy a power bank that is truly suitable for you.