pfeerick @BG502556513 Becauseyou may use more than 60A in a burst, rather than continuous. Although having said that, XT60 is actually rated at 30A continuous, 60A burst, although many multirotor fliers are subjecting them to more than 30A continuous without issue for 3-5 minute flights.

pfeerick It would be worth measuring the efficiency, you may be pleasantly surprised. My giandel 2ke inverters (one modified square, the other pore sine) pull around 0.2A and 0.6A respectively when idle IIRC, thanks for measuring stuff and posting it! :)

pfeerick Yourmultimeter won't be taking into account the current shunt in the charger, which makes your meter reading half of the actual current - i.e. the charger is probably correct. You would need to use a clamp meter to know for sure. Have your thoughts on this unit changed since you go it?