Hi - I was looking at Opalec site and several threads here but couldn't find - do they work with lithium batteries or should they be avoided? More interested in shelf life than a boost in output, etc.
Thanks
Dave
WIth L91 lithium you will also get 15 hrs of runtime instead of 10 of the alkalines, and no risk of leaking, and additional shelf life, and the ability to use the light in frigid temperatures. As Chris said, no increase in brightness.
Anthony