whats 1c mean? anyway my manul say lipo voltage level 3.7v/cell Max charge is 4.2v/cell Allowable fast charge current: 1c or less. I aint for sure what that all means thow I know on my old charger I charged everything on 2 amps but that was because the guy at the hobby store said so I don't know for sure if I still should do that becuse I did the math 1800/1000=1.8amps real close to 2 amps