Its pretty hot here in San Antonio these days, varying from 90 to 106 degrees ambient outside. Looking at my OVMS app, it shows the ambient temp in my garage at 87 degrees (there is no cooling in there so I think that seems like a low reading). While plugged in, OVMS consistently shows the battery at 96 degrees, the motor at 91 or so, and currently the PEM is 98 degrees. My A/C works fine and just had a full service done in Austin in March. Also, for the record, the temps reported for the tires are: 95, 96, 98, 100. Clearly these temp readings are not very accurate.
Why isn't the PEM and Battery (like the motor) closer to the ambient temp. Seems like they should all read the same temp after sitting there all night and this morning and that temp should be the ambient temp (unless ambient temp is over 100 in which case the battery should be kept cooler). Are the PEM and battery heating themselves up trying to cool the battery down?
thanks in advance for educating me
michael
Why isn't the PEM and Battery (like the motor) closer to the ambient temp. Seems like they should all read the same temp after sitting there all night and this morning and that temp should be the ambient temp (unless ambient temp is over 100 in which case the battery should be kept cooler). Are the PEM and battery heating themselves up trying to cool the battery down?
thanks in advance for educating me
michael