I guess I'm a glutton for punishment I have two 3s 2200mah 25C or so they say. That I run in my RC18. I hooked them up in series. The MM armed and off I go. I took it easy and stopped before they got hot. Just had to see if it would work :) Got them at the same place,but the Mamba25 in theRC18 dose not have near as much amp draw as the MM of course. They work awesome for the mini!