How to improve the automatic power-off function of electric chargers? Not long ago, I wrote a version of “Battery bodyguard for electric cars,”which introduced the electric car battery can be charged in a certain time, plus a timer, it protects both batteries and chargers. However, if there is more than one vehicle connected to the timer, some charge for longer periods of time, some charge for shorter periods of time, the allocation of time may be unreasonable, or there may be overcharging or undercharging. Is there any way they can get the price they want? The answer is that every car has a timer to adjust the time, so it’s very inconvenient and expensive. Think again, if manufacturers in the production of chargers, the timer design and production of good AH, why manufacturers in the production of chargers, why not consider this one? In fact, the whole circuit design is not very complicated, please see the charger circuit diagram and Timer Circuit Diagram. How to improve the automatic power-off function of the electric vehicle charger, as long as the back timing circuit is added to the front charging circuit diagram, the function will be completely different, there is no function to protect the battery from overcharging, just set it manually, after comparing the two kinds of circuits, the added complexity of the circuit is small, just a few electronic component. When charging, as long as the charging time is adjusted properly, not only can the battery and charger be protected, but also it can bring great convenience to consumers, so that consumers no longer worry about when the battery is overcharged or undercharged when charging, if the charger is overheating or running out. If manufacturers can move in that direction, consumers will accept even if prices are high.