Trying to contact Rob43

Discussion in 'Prime Main Forum (2017-2022)' started by CalBerkeleyAlumni, Sep 7, 2021.

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Gokhan Senior Member

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CharlesH said: ↑

Curious. On my Chargepoint Home charger, I normally get a 3.6kW charging rate, which is 15A at 240V. I measured the voltage. The charging rate is as reported by the Chargepoint app. Are you actually measuring 13.5A, or are you measuring kW and assuming 240V to get the amps? Just wondering where the discrepancy could come from. A lot of commercial charging sites use 208V, which is what you get between two legs of a 3-phase circuit. When I charge at commercial Chargepoint stations, I often see 3.2kW. 3.2kW at 208V is 15.4A. I am assuming a power factor of 1, which I think is appropriate for chargers, so watts = volts times amps.
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Yes, I was referring to watts. If they are running at 120 V × √3 = 208 V instead of 120 V × 2 = 240 V, that could explain the lower watts.

#21 Gokhan, Sep 11, 2021

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