LED flashlight battery selection

The battery has a great influence on the brightness and battery life of the mobile phone. The lithium battery can be used repeatedly, and has the characteristics of high capacity, longer overall battery life, and saves costs to a large extent, but it is not easy to buy. The time is short, dry batteries can better play the role of high-power LEDs, high stability, and a single use time is long, and easy to buy, but the battery needs to be replaced frequently, and the cost has increased. Foreigners generally like dry batteries. Most of my friends choose lithium batteries.