very helpful photo
the advantage of 16340 is that it is lower weight and smaller size
16340, 18350, 18650:
here is the 18350 version:
(pic is a link)
the advantage of 18350 is that it has more capacity
the disadvantage is the battery, and the light it fits into, is larger, and heavier…
your S1R uses a 550mAh Battery, size 16340 (16mm diameter, 34.0mm long),
that weighs about 18 grams
an 18350 Battery (18mm diameter, 35.0mm long),
that weighs about 25 grams,
is available in 1200mAh capacity,
double the capacity of the Olight battery.
however, if we use less lumens, we get more runtime
it can be misleading to focus on maximum lumen runtimes, if in reality we seldom use maximum…
so, be happy with your 16340 light and dont worry about capacity and runtime, instead, avoid using maximum…
.
16340 is 2mm smaller in diameter than 18350
Example Sofirn SC21
a light whose head was designed for a 16340 body tube, will not accept an 18350 body tube, because the diameter is 2mm larger… the parts wont screw together.
Example Sofirn SC31
an 18650 flashlight can easily use an 18350 body tube, because they are the same diameter.
16340 in 18350 body tube:
18350 in 18350 body tube:
.