An old CDI to an old airplane - is that not a fitting marriage.....! The BJ was first built probably in the late 80-ies or early 90-ies and I aquired it lately to have it "resurrected".
I simply refuse to buy a 80$ ignition module since I have run the engine in bench with a 4 cell NiMH. That works OK so I will stick to that for the time being. A four cell 2500mAh NiMH will stay above 4.8V for quite some time.!
YES..I do miss the old faithful NiCd:s..!!
2S LiFe has crossed my mind but they also start off at over 7V....=/...!!
Anyone else out there to chip in..!?!?