I have the PC program that allows me to change max rpm, plug voltage etc. I would double check with bennie but my Olympus hp needs a 4s lipo at 14.8v. I forget what the cutoff was but even my old (1997) NL olympus was a 12volt ecu, a 4s lipo is what I use. The 4s life probably isn't enough voltage.

looking on amt NL's site they only offer 4s lipo batteries so I would think all their hp ECU's are 4s lipo. Pretty significant voltage difference. They will calibrate below voltage but wont start below voltage.