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09.01.2009, 05:14 AM
I'd say it depends on what you run it in. I run 3s in my Rustler all the time and the MM has no problem handling it. After 30 minutes or so the ESC is hot (haven't checked the temp, but it felt like 170-180) but it works just fine. I guess I'm too lazy to wire in an external BEC to something which is totally capable, rated, and warranteed to handle what I'm putting it through. In something heavier like a CRT .5 it would be a good idea because you'll be working the ESC much harder than my feather-light Rustler.
All I ever wanted was an honest weeks pay for an honest days work.
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