I've got tons of different batteries and will tell you for a fact they are NOT made in the same factory. My "Mystery" brand batteries have ALL puffed, I use a thunder power 1010C w/ balancer, TP 610C w/ balancer or Triton2 w/ balancer and only my cheap chinese batteries have ever puffed on me.

My Air Thunders, Thunder Power and Outrage batteries are all running fine and I expect to get a minimum of 200 cycles from them all. So $75 for 200 flights is about 38 cents a flight. My longest lasting Mystery was for 50 flights and cost $20 that's 40 cents a flight. Where are the cost savings?