I would just go buy another glow plug ignitor. It would be easier and faster to just buy a new one, I bought one when I started this hobby 7+years ago and I still have that one and it works great. It takes a single d sized battery and will last for a ton more then just 3 starts. I think this same battery is on 1 1/2 gallons so far and still has life to it. I think it only cost me like $10.