On Tuesday, 21 May 2019 02:57:08 UTC+1, Jeff Liebermann wrote:
On Mon, 20 May 2019 15:18:29 -0700 (PDT),
wrote:

I purchased a 3 pack of the model 350 at Costco. Everyone one of
them has this issue. 3 months is about right. Put new batteries
in all of them and a few months later they all are virtually
drained of battery life.
Matt C

....
cork instead of a wine bottle cork. However, I haven't seen anything
for doing it with 4 alkaline cells. That's probably a waste of time,
so I suggest you recycle the flashlight and buy something that runs on
a LiIon cell and not on alkaline cells.

or use NiMH


NT