Knowledge

Solar cell is a photoelectric semiconductor sheet that uses sunlight to generate electricity directly, also known as "solar chip" or "photocell". As l

Three, EPS emergency power supply EPS emergency power supply is also used to renew key equipment when the power grid suddenly fails. Most of them use

Battery is a great invention, especially the "lithium battery" we use today. No matter whether there are more advanced batteries in the future, at lea

At present, portable energy storage products are applied in two directions in the downstream, one is outdoor activities and the other is emergency pow

Portable energy storage battery is specially designed for outdoor emergency, it has many advantages such as light and convenient, true bidirectional,

Most of the 18650 batteries on the market have a capacity of 2,200 mah, which means it has a voltage of 3.7V and a current of 2200mA. But that's not t

1. From the appearance size, 18650 battery, diameter of 18MM, height of 65MM, can be measured by caliper specific size 2. Visual inspection of its app

The 18650 refers to a type of lithium battery. Lithium-ion batteries: Because of their light weight, large capacity and no memory effect, lithium-ion

1. High temperature exposure is strictly prohibited. In hot summer, if electric vehicles are exposed to the sun, the probability of lithium ion batter

1, lithium battery is afraid of high temperature, long-term in the environment of overheating, will greatly reduce the life of lithium ion battery, se

The principle of lithium battery repair method 1: the metal surface of lithium battery used for a long time will have a certain degree of oxidation, r

Using a clean eraser or other material cleaning tool, gently wiping metal contacts on lithium batteries and phones can help improve charging condition