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Duncan
Short answer - No. With Lithium batteries (AA or AAA) in that it should last a long time - so I'd wonder is there a short draining the batteries when the laser isn't active. Either test if there is any current flow (i.e. non very high resistance with it switch off across the contacts) or see if a second set of batteries goes dim after being in the pointer - but with it not switched on for a day or two.
Matt
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