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What do the rubber washers do that come with these models? Everytime i put them in and screw the ends down it just squeezes the rubber washers out. lol I think I am doing it wrong.
They are spares, for when/if the installed ones break.
OH! I shouldn'ta squished em then...
They help to make the flashlight water tight. Otherwise, if you drop it in a puddle, the water will seep into the battery compartment.