Joule Thief nears end
After 9 days my little joule thief is near it’s end. The experiment ran more than the 200 hours that I was hoping for. It proved that the circuit can produce light and charge at the same time. This device was powered by two AA Rayovac Hybrid NiMH batteries that are rated at 2100mAh. The measured amp draw was 20 milliamps. Source and charge batteries were swapped once a day.