acdii, I hope you can find something to fit your needs. In the future on your electric planes. Always use a timer. Start out on the conservative side and sneak up on the limit 30 seconds at a time. When you find it come back 30 seconds. It is much better for battery life not to run them down and as you well know can save an airframe. My radio has a timer built in in but it is easy to Velcro a cheap Wal-Mart timer to the back of your TX if need be.

David