How To Check Charger Amperage. According to this in-depth article from Wired. It also features a built-in multimeter for displaying voltage current power and milliwatt hours on the integrated OLED display.
Because of the power acceptance limit of some electric cars its possible that a charging station with 40A doesnt allow you to charge faster than a standard 30A charger. You can do this by checking the owners manual of your device. Consequently it may damage your car battery.
To calculate your total charge time for a battery a good rule of thumb is to take the amp hour rating of the battery and divide by the charger rating amps and then add about 10 for the extra time to totally top off the battery.
In the same vein your chargers peak voltage amperage or adherence to Quick Charge or USB-PD spec may be a limiting factor. Set your multimeter to DC. This is the reason you should know how to use or read a battery charger amp accurately. Because of the power acceptance limit of some electric cars its possible that a charging station with 40A doesnt allow you to charge faster than a standard 30A charger.
