Home > categories > Measurement & Analysis Instruments > Clamp Meters > Electric car charger measuring current, when the battery is completely without electricity measurement, or in full of electricity measurement, how to know the charger accurate output current, with caliper meter measure?
Question:

Electric car charger measuring current, when the battery is completely without electricity measurement, or in full of electricity measurement, how to know the charger accurate output current, with caliper meter measure?

Electric car charger measuring current, when the battery is completely without electricity measurement, or in full of electricity measurement, how to know the charger accurate output current, with caliper meter measure?

Answer:

When the charger is charging normally, the output current is changed. At the beginning of charging, the battery voltage is low, the current is relatively large. As the charging goes on, the battery voltage is higher and higher, and the output current will become smaller and smaller. When the battery is full, the output current is very small.
The charge of the charger is DC, and most of the clamp tables are electromagnetic induction. The DC current is not measured, and the ammeter is used to measure the circuit. Most of the meters also have current gears that can be measured by their current profiles
The output current index given by the charger is the maximum current that the charger can output. If this indicator is exceeded, the output voltage drops, the charging is abnormal, or even the charger is damaged.

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