hi I use a lummi WEE 25 lumens and I want to sustitute the 10180 battery with some lithium cells.
why? becouse 10108 battery discharges and when I need it the flashlight is run out, yes I´m laizy with 10180 charge rutin
Anyway plaese let me know some possibilities and run times.
There is no easy battery alternative for powering up a 25 lumen Wee. It's made for the exact length of the supplied 10180 cells. It lacks a conventional tail spring and this it what makes finding an alternative difficult.
The only thing that comes to mind that might work would be to stack and wrap 4 #380 silver oxide 1.55 volt-82 mAH rated cells plus a 3.0 mm thick conductive spacer disc and slide them into the tube to see how it goes.
The outer edge of the batteries & conductive spacer disc can't come into contact with the wall of the battery tube so you must line up the 4 coin cells and spacer and wrap the stack with a bit of tape to prevent them from shorting out against the battery tube. Put the spacer in the middle of the stack. The tapped stack will be much easier to handle as well.
Last edited by LumenHound; 07-17-2010 at 03:06 PM.
Reason: spacer thickness
10180 cells & Li-ion cells in general have a very low self discharge. Should be good for a whole year easy without self discharging.
There are many options with coin cells stacked / insulated & spacers. However in my experience nothing compares to the 10180 Li-ion.