Power Supply Development And Production

Why is the electric car charger still charging after turning green?

 Why is the charging power so small in the last 1~2 hours? Why does the charging power change, not always a power? Do you have these questions? Next power adapter manufacturers Eahunt to answer these questions

First, what is the principle of the electric car charger red light to green light?

This is controlled by the voltage detection circuit inside the charger, the battery charging process is a first constant current charging and then constant voltage charging process design.

Full charge before the voltage does not reach the rated voltage, the red light; full charge after the voltage reaches the rated voltage, voltage detection circuit control green light.

Second, why is the charger charging after turning green?

The charger does not stop charging after the green light, but only to the next stage of trickle charging, that is, we commonly known as the "float" or "steady flow", generally recommended to trickle charge for about 2 hours, the battery pack life will be beneficial.

Third, why the charging power will change, not always a power?

In fact, electric car chargers are generally three-stage charging mode, including:

1, the first stage is constant current and voltage limiting, with a fixed current to the battery charging mode.

2, the second stage is constant voltage current limiting, also called fixed voltage charging, to a fixed voltage to the battery charging mode.

3, the third stage is trickle float charging, also known as maintenance charging, float charging voltage, this stage is generally 2~3 hours after power off.

This is why the charging process, the beginning of the power is the highest, and after charging for a few hours, the charging power gradually declined, and finally to 2 ~ 3 hours of low power to end the charging reason;

Eahunt is a professional power adapter manufacturer with many years of experience in power supply research and development and production, and produces a variety of power supply products such as balance bike charger, e-bike charger, small home appliance power supply and so on.

Eahunt only do high standard power supply, product 100% aging test, life expectancy can reach 100,000 hours, to meet the 10,000 times plugging and unplugging without failure standard. Product certification is complete, with CCC CE UL CB PSE KC GS, FCC multiple international safety regulations.