What is the expected battery life? May 15, 2020 09:35 Updated Batttery duration time is > 40 hours (please see instr. manual EasyDens) Related articles Instruction Manual (New EasyDens) How long does it take for a measurement? Can I measure alcohol content (ABV)? Is it water resistant - if so to what level? Where can I find more information on the EasyDens software?