Quote:
Originally Posted by jad03060
A couple of things:
- converting ACV to DCV is never without its losses in the power supply. The EVSE is supplying ACV, and the batteries need DCV (that power supply is IN the vehicle). Expect about a 5% loss just from that conversion when using level 2, more when using a level1 EVSE.
- both the power supply and the batteries will heat up during charging, so the vehicle will be 'wasting' some energy to keep things cool, more so in the summer and after a long use versus say recharging during off-peak time after the vehicle has had a chance to cool off by itself without using the on-board cooling.
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AFAIK this should be accounted for on the supply side. Given a 95% efficiency, it should take, for example, 105W of AC to provide 100W of DC power. The car/batteries are expecting a certain amount of DC, so it's up to the supply to provide the correct amount of adjusted AC power to account for the loss when converted to DC and supplied over a certain distance/line.