I run all tekin stuff as far as maint. On brushless there is none if you don't run them hot a 17.5 turn brushless is usally stock class I run my brushless with lipos and there is no problems what so ever I can run twenty minutes solid in my buggy and it comes off the track at about 110 depending on ambient temp
Lipos can't run under 3 volts a cell so a 2 cell 7.4 volts has a cutoff of 6 volt any good esc will have a lipo cutoff programmed into it