Battery life is disappointing, to say the least

I have worn fitbits everyday for 8 years, and this one is my 4th. Usually I get a battery life of 3 to 4 days, but this new one does not even last 18 hours. I cannot sleep with it if I want to work out first thing in the morning and keep track of my work out. I turned off all notifications, but gained perhaps 1 hour.

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