Re: Which Rechargeables will Physically Fit in L2
seattlite, some one correct me, but I think you need higher voltage to the voltage regulator, than 4.2 volts. It is, in effect, a buck regulator, that requires closer to 6 volts from the batteries. Two R123's would work, though resistor to led would need a different value. Removing the led ring would solve that problem also, but you would lose an excellent feature from the light. If I had an A2, I would remove the leds, and run with quilt free R123's, preferably unprotected R123's.
Bill