Line problems, including power line damage, no power supply, poor contact of DC head, etc. Check whether the input line and output line can be powered on normally.In case of line fault, it can be solved by replacing DC line or AC line.

The increasing development of portable electronic products puts forward higher and higher requirements for the capacity and cycle life of rechargeable batteries. At present, there are four common types, nickel cadmium battery and lead-acid maintenance free battery (SLA), which were widely promoted in the 1960s,

Nowadays, with the continuous development of science and technology, new electronic products emerge in endlessly, and many electronic products are inseparable from power adapters. However, for many people, there are many incorrect operations.

Can the power adapter be universal? Many people will ask such a question: is the power adapter universal? The power adapter is also called an external power supply. It is also a voltage conversion device. Power adapters produced by regular manufacturers will have a nameplate with its main information,

What is the difference between a power adapter and a charger? 1. Different components (1) Power adapter: it is an electronic appliance for small portable electronic equipment and power conversion equipment. It is composed of shell, transformer, inductor, capacitor, control chip, printed circuit board, etc.

Aircraft is one of the inevitable ways of travel in daily business and travel. However, when many netizens fly, they often want to take some things with them. For example, you can often see a computer charger. Many friends often ask, can I bring a charger before the plane takes off?