Well so far I've ran my 6 cycle engine about a total of 1.5 hours with it on a 4.5 rechargeable battery and seems to be working ok. So now I'm going to take the base the motor sets on and machine a pocket in it to wire it in. I plan on wiring it in with a plug to recharge battery and switch and LED indicator light. I did mis-speak in the video I am planning on building 2 more IC engines before going back to steam. I have worked on my version of a hoglet with a fully enclosed lower end and have it all modeled up plus I have the knuckle Head modeled up. So I plan on working on them before going back to team I have a couple steam engines I want to get built. I will start the Hoglet this fall after weather turns. Anyway I'll keep you posted if this little unit will hold up or not.