mine seems to be working now with only a 3600mah 2s test pack running through it. i am very reluctant at this point to invest anymore in batteries and servos. the failure rate of this product is just starting to sink in given that at ANY point the esc can malfunction and take out my packs and servos as well as the esc with it. all this and the manufacturer is not liable for this extent of damage. to me now really defeats the purpose of buying the MMM in the first place and am now seriously considering the trip back to Novak. sad but true.