On the topic of Gen Ace batteries, I picked up two last week, when I got them, one of them was totally dead, my wouldn't even register it, also didn't have a single volt in it. The other gen ace lipo worked great, no problems at all, I used it about 3-4 times on Saturday and it ran great. My main lipo is a team orion 6500mah 90c and that thing is a beast and I love it. Thinking that might be where I need to be at. Still waiting to see if Hobbypartz will replace that dead lipo for me.