Wireless charging is a significant development research direction. We all know that there are many hidden dangers in wired charging, and wired charging is greatly influenced by distance and environment. Sometimes we have to connect a lot of wires for charging, and some wires are unsafe, but we still use it for charging.
Every year there is some news about fires caused by illegal connection of power lines. However, as long as there is wireless charging, these situations will not happen again, and we will no longer need to connect lines for future charging. As long as the equipment to be charged is near the wireless charging board, it can be charged. It is very convenient and safe. In this way, there will be no exposed plug on the outside, and there is no need to worry that children will get electrocuted due to contact with the charging plug.
Another thing is that the wireless charger is waterproof. Some of our charging plugs cannot touch water, or electricity will leak.  However, the wireless charger is waterproof, even if water leaks from it. This can also eliminate some potential safety hazards and make our life safer.
Another advantage of wireless chargers is that they don't have to worry about adaptation. Wired chargers have different plugs for different articles and brands. Each article can only use its own charger. However, when we have more things, it is inconvenient. Charging lines are everywhere. It is not only troublesome, but also cannot be shared after being damaged. We must replace them with new ones. The current charging line is also more expensive, so it would be much better if all the charging equipment were replaced by wireless ones. There is no need to worry about the damage and loss of the charging line.
Of course, everything has two sides and wireless charging has its disadvantages. The wireless charging board is inefficient. Depending on the design and the location of the user's mobile phone on the charging board, the charging efficiency may be between 30% and 80%. That is to say, even under ideal conditions, 20% of the electricity will be wasted.
Although the charging efficiency has been continuously improving, the efficiency of low-power charging (e.g. mobile phones) is lower than that of high-power charging (e.g. electric vehicles)-the efficiency is close to that of wired charging.
Therefore, the disadvantage of wireless charging is mainly reflected in its efficiency, and its power conversion rate still needs to be further improved. This will not cause waste of electricity.