CCCVladdning

CCCVladdning, also known as Constant Current Constant Voltage charging, is a method used to charge rechargeable batteries, such as those found in electric vehicles, portable electronic devices, and other battery-powered applications. This charging technique involves two distinct phases: constant current (CC) and constant voltage (CV).

During the CC phase, the charger supplies a constant current to the battery. This phase is crucial for quickly building up the battery's charge. The duration of this phase depends on the battery's capacity and the charging current. Once the battery reaches a certain voltage threshold, typically around 80% of its full charge, the charger switches to the CV phase.

In the CV phase, the charger maintains a constant voltage across the battery. This phase continues until the charging current drops to a predefined threshold, indicating that the battery is fully charged. The CV phase ensures that the battery is charged to its full capacity without overcharging, which can degrade battery performance and lifespan.

CCCVladdning is widely used because it balances the need for fast charging with the need to protect the battery from overcharging. It is particularly important for lithium-ion batteries, which are sensitive to overcharging and require careful management to maintain their health and longevity. The technique is standardized in various charging protocols, including those used for electric vehicles and portable electronic devices.