Synergy Digital Smartwatch Battery, Works with FitBit Blaze Smartwatch, (Li-Pol, 3.7V, 120 mAh) Ultra Hi-Capacity, Compatible with FitBit Blaze Battery
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Fitbit Blaze review: Fitness-infused watch that's more likable than you'd expect - CNET
I bought my Fitbit Blaze (remember those?) in 2016. Battery is on its last legs. I will be heartbroken when it's time to retire this bad boy. : r/ fitbit
Solved: Blaze battery draining fast - Page 2 - Fitbit Community
Synergy Digital Smartwatch Battery, Works with FitBit Blaze Smartwatch, (Li-Pol, 3.7V, 120 mAh) Ultra Hi-Capacity, Compatible with FitBit Blaze Battery
TAE Fitbit Charge 2 Battery 60mAh - Tanin Auto Electronix
Synergy Digital Smartwatch Battery, Works with FitBit Blaze Smartwatch, (Li-Pol, 3.7V, 120 mAh) Ultra Hi-Capacity, Compatible with FitBit Blaze Battery