For what those things cost, & for all the hassle to remove the batts, & for how much you value your time, & it still might not work when all is said and done, just buy a new one, , , ,

Had one 'spinner' laser with visible beam, gave it to a local thrift store, took up too much space with case, these are on top shelf outta the way "batteries removed"

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"I applaud your elaborate system of denial"