I was thinking of trying a set of 3 x 18650 rechargeable lithium ion batteries in series feeding into a 7809 voltage regulator and using a dummy or hollowed out PP3 to fit in the battery holder of an A9b.
Has anyone tried something similar?
I was thinking of trying a set of 3 x 18650 rechargeable lithium ion batteries in series feeding into a 7809 voltage regulator and using a dummy or hollowed out PP3 to fit in the battery holder of an A9b.
Has anyone tried something similar?