Hogokansatsukan
Flashlight Enthusiast
I was expecting to see updated runtime specs for the new 16340 INR batteries, because previously (as detailed in the chart above) the INR cells don't seem to give the operator much (if any) notification that the battery is running low with gradual step-down time ("Elegant low battery warning"), as can be seen in the in the ANSI vs Tactical (down to 50 lumens) runtimes.
For example looking at the chart above for my EDC LE:
CR123, High (110 lumens)
2:45 mins down to 50 lumens
3:15 mins down to 25 lumens
so with 30 mins step-down between 50 to 25 lumens.
16340 INR, High (110 lumens)
2:15 mins down to 50 lumens
2:15 mins down to 25 lumens
so with 0 - <1 min step-down between 50 to 25 lumens, i.e. almost no advance warning (at least between these lumen outputs)
16340 IMR, High (110 lumens)
1:45 mins down to 50 lumens
1:30 mins down to 25 lumens
so with 15 mins step-down between 50 to 25 lumens.
Although to be fair, running maximum 250 lumens with the INR cell would give 4 mins warning between 50 - 25 lumens, so I estimate a bit more for the total step-down runtime from 250 lumens; plus you do get a longer overall runtime than with the IMR cell.
So although INR maybe one of the safest battery chemistries if doesn't seem to go down to well with the "Light to get you home" philosophy. I don't know, I'll just have to wait and see some runtime test data or do it myself.
BTW who is the manufacturer for these 16340 INR cells? If known we can then check to see if there are some reviews already out there.
The table provides information for several representative battery configurations. The tests were done with new premium batteries on an integrating sphere at room temperature. Per the ANSI FL-1standard, runtimes under an hour are rounded to the nearest minute, runtimes from 1 to 10 hours are rounded to the nearest 15 minutes and runtimes over 10 hours are rounded to the nearest hour.