| http://www.w3.org/ns/prov#value | - As we always replace the batteries at least once a year and check the state of play by pressing the button on our detectors regularly, I have to say they did what we bought them for.They are an alkaline battery so we felt they were fine for use in this case, but I would suggest that for items that are high drain including any digital items these would not be your best bet.
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