My shiny new mag-lite:
...never even switched on the poor thing. My associates Mr. reamer & Mr. center lathe welcomed the newcomer.
Yep, you guessed right, 8aa. Two sets of four batteries in parallel (4.8V nominal).
I was a bit annoyed about the fact that regulated means led, at least in modified lights. (I have this theory that it is because most off-the-shelf converters can't drive such loads.) There is almost no regulated incandescent lights. (I know about HIDs & SF A2 etc.) So I built a boost-converter which I integrated into stock mag-lite switch. Finally whole converter was encased in epoxy. (No shown in pictures.)
Lo and behold, it is actually working. Picture is taken with mesuring equipment connected.
Results about the measurements were quite good. Chip manufacturer gives 80% typical efficiency.
It actually works, and these weren't just pictures about my failed attempt to create light.
I didn't bother to take beam shots, since you all should have seen a 6D maglites first seconds with new alkalines in action.
I'm driving a 6-cell Magnum Star Xe-bulb at 7.30 volts. I chose this one because standard maglite handles it well. (No need for aluminium reflector etc.) Secondly, when it blows it can be replaced with a WhiteStar or MagnumStar bulb on the road.
If anyone has an idea what voltage the bulb is rated for, let me know. And it's not a CarleyLamps Xenon Star, or their specifications are quite open-minded. These take about 150mA more current than Carleys ratings at specified voltage. I tested several bulbs, so at least a batch is effected, not just one bulb.
Those Ansmann 2.7Ah cells drive the light quite nicely. Just four cells can power the light well past one hour. Then my patience caught up with me. So far I haven't even dreamt of measuring the run time with 8 cells.
So this is what you get when you think about 6D+ performance in 2D form factor. Cheers.
...never even switched on the poor thing. My associates Mr. reamer & Mr. center lathe welcomed the newcomer.
Yep, you guessed right, 8aa. Two sets of four batteries in parallel (4.8V nominal).
I was a bit annoyed about the fact that regulated means led, at least in modified lights. (I have this theory that it is because most off-the-shelf converters can't drive such loads.) There is almost no regulated incandescent lights. (I know about HIDs & SF A2 etc.) So I built a boost-converter which I integrated into stock mag-lite switch. Finally whole converter was encased in epoxy. (No shown in pictures.)
Lo and behold, it is actually working. Picture is taken with mesuring equipment connected.
Results about the measurements were quite good. Chip manufacturer gives 80% typical efficiency.
It actually works, and these weren't just pictures about my failed attempt to create light.
I didn't bother to take beam shots, since you all should have seen a 6D maglites first seconds with new alkalines in action. 
I'm driving a 6-cell Magnum Star Xe-bulb at 7.30 volts. I chose this one because standard maglite handles it well. (No need for aluminium reflector etc.) Secondly, when it blows it can be replaced with a WhiteStar or MagnumStar bulb on the road.
If anyone has an idea what voltage the bulb is rated for, let me know. And it's not a CarleyLamps Xenon Star, or their specifications are quite open-minded. These take about 150mA more current than Carleys ratings at specified voltage. I tested several bulbs, so at least a batch is effected, not just one bulb.
Those Ansmann 2.7Ah cells drive the light quite nicely. Just four cells can power the light well past one hour. Then my patience caught up with me. So far I haven't even dreamt of measuring the run time with 8 cells.
So this is what you get when you think about 6D+ performance in 2D form factor. Cheers.
)
