Agcatsbest, np, maybe I didn't explain myself very well. I DO use a programable and Lipo safe ESC. The inadvertant saftey feature I was talking about wasn't just the ESC shutting down for soley low voltage, it was the ESC shutting down for low voltage BECAUSE of over drawing the amps. This can happen right of the charger. The point of it all is that Lipo's rated capacity in MaH and the rated discharge rate as a function of "C" appear directly related to how much power (AMPS) the battery pack can handle. Over drawing a Lipo in AMPS is every bit as damaging as going to low in voltage, or so I'm told. With Lipo's, unlike conventional batts, it appears you need to carefully match the batt to the application.