I played with my D11 this morning and gathered some bits of information for you folks. 🙂
First of all the instruction sheet says that li-ion rechargeable batteries are accepted so I tried an AW 14500. Bad surprise: only one of my six cells works in my D11, the others are too long and the piston action is messed up. When I insert the cell and screw in the head the light comes on as usual but it is not possible to switch it off. You have to loosen the head by a few turns.
After trying all my cells I found only one whose length was acceptable: not too good.
This is what D11 does with the various cells:
- 14500 = 24,000 lux @ 1 m
- NiMH = 11,500 lux @ 1 m
- lithium L91 = 12,500 lux @ 1 m
The output with a li-ion blows your head off! I have to add that the temperature of the head climbs up so quickly that you are tempted to drop the light.
Interesting test but for me it's back to NiMH and a more reasonable performance.
As to ramping I clocked a time of 5 seconds too which IMHO is a bit too quick. I prefer JB BK135A's time of around 15 seconds.
That's it for now. :wave: