? about Lummi WEE cell discharge safety

brighterisbetter

Flashlight Enthusiast
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Does anyone know the current draw of the 100lm LE with the Wee? Assuming the LiIon 10180 cell is 90mAh, wouldn't drawing 180mA push the 2C envelope? I'm assuming it's safe so long as it doesn't exceed this. Based on this Vf chart, the R2 should put out between 114lm and 122lm @ 350mA. Doesn't that put the discharge rate of the 10180 close to 4C, or am I missing something? Any help would be greatly appreciated.

(This question was originally posted in the Lummi sub-forum but had no response so I've since deleted that post and moved it here.)
 
Your fourth sentence in the OP answers your first question.
The tiny 10180 cell does get pushed very hard when powering the 100 lumen light engine. The price you pay for for all those lumens in such a small package is reduced cycle life of the cell.

The higher powered 80 and then 100 lumen Wee's have been in the hands of flashaholics since August 2007 and I can't recall reading about any problems with the 10180 cells other than the above mentioned reduced cycle life.

Rob posted this comment about the 10180 cell back in April.
 
With a freshly charged 10180, I measure 430 mA on the 100 lm Wee. I have the neutral white NS.

I use it in short bursts only. :tinfoil: For show purposes only. :whistle:

I have a 50 lm Wee Ti on the way. I expect to wear this around my neck every day (EDN).

I'm considering getting a 25 or 50 lm LE for my NS, for sane continual use.

Big question: How does one change the LE on the Wee? Will changing the LE result in a loose LE?

Thanks in advance for the replies. :popcorn:
 
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