Hi @MF21 No, the batteries are not replaceable. Have a read of these Help Articles. If nothing there resolves your problem, please come back here.
BATTERY CHARGING PROBLEMS
https://help.fitbit.com/articles/en_US/Help_article/1190/?l=en_US&fs=RelatedArticle
BATTERY LIFE
https://help.fitbit.com/articles/en_US/Help_article/2004
Helen | Western Australia
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Best AnswerNothing has helped. I had it on at the gym this morning and it keeps shutting down and restarting. Do Fit bits have warranties?
Best Answer