The SD-05 can use ANY 21700, but for my personal preference I’ll take the 50G or another good HIGHER capacity battery (Vs. higher current batteries as turandot lists above).
The SD-05 is quite a good light above water too. I have been using one the last few months by the back door. It really throws better than I thought it would too. And the 21700 is a real plus. I like both the new IF25a and this “dive” light the most lately and the SD-05 doesn’t heat up as fast as the IF25a, but gets VERY close in beam-width and throw with one emitter (Vs the four in the IF25a).
I AM a real fan of this light and as a diver I am looking forward to “taking her down” this winter in Cozumel IF covid doesn’t *@$! that trip up like it did last month (when I got my SD-05 for THAT dive we canceled).
Ok, thanks!
What’s the difference between 48A max current output (Sofirn 21700 4800mAh / 48A) and 10A (Samsung INR21700-50E 5000mAh - 10A) max current output for flashlight operation (brightness, temperature,……)?
- which is exactly why putting a 40T or other super high current battery in the light is fine and all; but your not getting any more output from the light over the average high capacity 21700 (which run around 10 amps continuous… covering the light’s max draw by almost 3 amps).
So why not add capacity? I ALSO can confirm using my Molicel P42a in my IF25a from Sofirn that it gets hot VERY fast compared to the 50G (which does get as hot, but not as quickly). I’m sure there is a “smidgen” more output on the Molicel, but I really can’t see the difference when I light up the back pasture with both the IF25a and SD-05 using the 50G (actually a wrapped 50G called an “Epoch 5k” from 18650batterystore- great company I’ve been buying from this year- ALL authentic and everything disclosed re. their own wraps).
What kind of driver did the old and new sd05 uses? Which one are more efficient? I want to buy them but cancelled buying since I don’t know what other difference they made to the light.
The old was regulated and the new is not . Old emitter was 6 v and new is 3 v. There are differing opinions as to which is better. I have the new and the one good thing is it does not have a timed stepdown, only thermal stepdown. This could be a huge difference in actual use, especially in water.