Are Zippy Lipos safe with a Castle MMM Speedy?

[Sammus]

if you have bottom end packs you just cant expect them to perform the same as top end packs. ie. dont try and draw a ridiculous amount of power from them. Dont try and run a 10kg all alloy emaxx at 70mph. gear down!

I was running an erevo on 7s1p a123 through a MMM geared for 35mph and nothing ever got hot or broke or exploded or whatever, and A123s are notorious for shocking voltage drop. I just wouldn't attempt to gear it to 70mph and expect nothing to go wrong unless I had some top end (ie PQ or whatever) battery packs.

Some people just want to go faster than they need to. I've geared cars to go stupid fast, and its pointless. gets boring very quickly once you do it.