Thats surprising but good to know. I would have thought it drawing alot of power just because the electric pumps can be running constantly for 10 minutes and to very high pressures.We have a electric SUP pump (from Decathlon). It plugs in to the 12v cigarette socket so suitable for any car. We use it on our Leaf and ZS EV and you won't see any noticeable battery drain on the HV battery (energy use is tiny).