This is what I got from playing around with it last year Trustfire TR-J20 Update 8-11-14 The driver cuts off at 9.6 volts, it does suck more current as the voltage drops. I was wrong about boring it for even 16650’s just not enough room.
This is what I got from playing around with it last year Trustfire TR-J20 Update 8-11-14 The driver cuts off at 9.6 volts, it does suck more current as the voltage drops. I was wrong about boring it for even 16650’s just not enough room.