5 of 6 people found the following review helpful
It does not appear that the battery is mean to be user-replaced ... but it works very well.,
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This review is from: MARATHON Adanac 3000 Digital Stopwatch Timer with Extra Large Display and Buttons, Water Resistant (Sports)
Works well as a stop watch ... but it appears 4 screws will have to be removed to attempt to replace the battery .... and I am not sure it will go back together correctly.