Like so many others, my fitbit blaze battery died. It's charge fell off a cliff - It went from days of charge, to hours, then to minutes, then to no charge all within a week or two. I scoured these fitbit comment boards for a solution. Don't even waste your time. The only solution is to replace the battery. However, it's very easy to do! I replaced my fitbit blaze battery with zero technical experience in 30 minutes for less than $25 bucks.
- I purchased this battery - it comes with the tools needed to replace as well - for $12. https://www.mpfproducts.com/120mah-lssp321830ae-battery-for-fitbit-blaze-smart-fitness-watch-fb502/
- I purchased a soldering kit on Amazon for $15. Note that I have never soldered anything in my life!
- I watched this youtube video: https://www.youtube.com/watch?v=DYwEM7W19dg
Again, I have zero technical expertise and have never soldered anything before in my life. However, this was insanely easy. It took ~30 minutes and cost me $25. Now my fitbit blaze lasts for days
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