Powering KingTech engines with LiPo-battery
As I'm living in area, where outside temperatures are often hostile for life, using LiFe-battery is not really an option.
Been able to use LiPo or Li-Ion-batteries gives to you more freedom of choice.
I have made small device to solve that problem, and short video about it.
You find it from youtube using search "lipolife kristola".
I'm not able to attach link to the video, been too passive I think.