Ways to protect MMM when used with subpar batts

[Unsullied_Spy]

How hot are your NiMHs when you get done with a run? If you are hitting 120 or higher by the end of the run you are still pushing them too hard. You're trying to run a Hummer off a Civic engine, it will technically work but really shouldn't be done. If you want to keep from causing a catastrophic failure, you'll save up a little and get some decent lipos. I am a big fan of the Turnigy/Zippy/Rhino packs from HobbyCity. They aren't the best in the world but for the money you could gear for 40MPH and not have an issue.