I run mine!!! Until is it unresponsive.
With a light bar I would use not more than 5 lights. that is a 10 amp draw. 3 would probably be safer.
Are you using Nimh batteries? If so you do not need to discharge them.
We were drawing about 3 to 4 amps whe we ran them offroad this summer so we have been discharging at 5 amps after races.
We are charging at 1 amp what are others doing, A couple of guys tried 3 amps and they were dumping 1100 - 6 cell packs unmatched in 5 minute races.
Thanks John Schoenauer