The rx8 has a 6v cutoff for a 2s so I don't know if I can change that I have a thunder dual power ac680 charger my capacity cut off is 5000 mah on charger u can turn that off input power is set low cut off is 10.0 v it's set to v type 3.7v lipo check time is 5 min whatever that means also USB /temp cutoff is 80c waste time is set to chg/dchg to 10 min
Maybe this can help you to help me. I'm lost. Thanks again for your help