___Yes, it’s too much. And it will have only 50% of capacitance after 20 cycles of disharge at 800 ma. But we can’t avoid that if we have a task to build keychain flashlight with such brightness. We have a cut-off at 3.2V___
That's an acceptable trade-off for such a small sized rocket. As long as it does not completely discharge, very few folks would run this light on the highest setting for 4-5 minutes so I don't see it at as cell killer. Very interesting light and I'm quite sure I would buy it !
X3, I’ll measure lumens once more on professional equipment. Now I think that we exceeded 800 ma when battery voltage was above 4V (we charge it till 4.2V) and first 30 second it was really 550 and then fade a bit.
We’ve seen some increases in battery capacity lately. Look at the new Aspire 18350 that HKJ tested recently. It claims 1300mAh, and it actually reaches a little over ~1100mAh. That is about 50% more than previous best available 18350 cells. There are other sizes getting the boost as well. I’d love to see a 10180 cell get an actual 120mAh soon (or even more). :+1:
Yea not to long ago beginning of last year the 10180 where only getting like 60-70mah.
Seeing as its desgined as a round light its to late now. You could always build a light using a lipo cell in a fully inclosed flashlight like the Nitecore TIP. The lipo cell would be a better choice for a small high drain cell. You could easily get the power you need. Also the build might have been easier to use a XPG3 they are super efficent and a tad smaller then the XML2. upto 187 lumen at 350ma.
We are a tough bunch to impress here on BLF dont take what we say personally.
“We tested cell 10 times and after that it has about 90% of life. We think after 20 sessions in turbo mode it’ll have only 50% of capacitance.
We’re honest about that – if you want such light from keychain you need to find a compromise.”
does that mean, if you use it 20 times doing this: “turbo mode till the discharge of a battery”, then half the capacity is gone?
Hammering tiny 10180 cells at 20-25 times rated capacity will severely reduce it’s life but it’s fun doing it :laughing:
I’ve had 1.6A from 10180’s and 2A from 10250 MBI Nukes.
says 10 feet... look at the light the hand and the mortar seam in the block wall... looks more like 2 or 3 feet. Not saying it is 2 or 3.... But not 10
So I don’t think it’s relevant information for you. Search also on Ebay or Aliexpress.