I don't discount your findings but my impressions and results have been quite different. Yesterday I ran 3 quals and main with a 3800 from Orion. At most with a couple warm up laps and 5 minute heats I was only draining 1500mah average. Of course I don't run a Mamba setup as they aren't ROAR approved. 4 back to back heats and I had as much punch as those running the SMC 4000 28C batteries through the entire heat.