Pretty good anyhow. Although, for the money you may be better off just buying from shining beam. But, I had the parts laying around.
Before taking the meter to it, I was going to say that while having the driver out I should have replaced it with something like DX sku 7882, or the universal 19 mode driver, but that requires modding the pill and putting the driver under it, or so I have read.
But, after looking at the current draw from the battery, I guess the onboard driver is up to the task just fine.
RC-G2 Q5
Energizer L91 (well used) voltage 1.44
Current@tailcap - 1.61 1.30 after about 30 seconds (probably not much left of this battery)
Led V - 3.24 dropping to 3.21
Eneloop AA voltage - 1.29
Current@tailcap - 1.60 1.45 after about 30 seconds
Led V - 3.24 to 3.22 pretty steady
RC-G2 P2
Energizer L91 (well used) voltage 1.44
Current@tailcap - 1.67 1.38 after about 30 seconds (probably not much left of this battery)
Led V - 3.13 steady
Eneloop AA voltage - 1.29
Current@tailcap - 1.82 1.50 after about 30 seconds
Led V - 3.16 to 3.14 pretty steady
Considering the lower VF of the P2 I can't explain the higher current draw vs the Q5. I would have thought it would be the other way around, but maybe I have my logic twisted around. :laughing:
Even though you aren't supposed to hook up a boost circuit with no load (usually at least) I did do it briefly with this circuit and I got about 3.7 - 3.8 volts from it so I am going to figure this is a constant current circuit and the voltages at my led are my actual VF's, but even though it is current regulated, it is somewhat dependant on either voltage in, or possibly my batteries just couldn't deliver more of a load.
Next time maybe I will put in a board for a 14500 if I can find something. Or maybe not, I have plenty of other lights to move onto.
Visually, I would guess a 25% output. The one thing I might still do is take apart the tailcap and treat everything with deoxit.