My parallel harness came in, this should be perfect. I had a few modelers comment to me that I needed to use a series harness not a parallel one. They are wrong as a series harness would double the voltage and keep the mAh the same. this would definitely let the smoke out of my motor or ESC. By going with a parallel harness I will safely double the mAh rating (this is good) keeping the voltage the same(this is good too).