with some quick research i discovered i have parallel wires, while the previous owner had series, i read that parallel increases capacity( 5300maha*2= 16000mah) while series increases voltage(7.4v*2= 14.8v), so id imagine the ESC was set for 14.8v while im only giving it 7.4v and thats why it says Low Voltage Cutoff

! i think i figured it out, so now should i resolder everything to make it series or is there a way to change that?