Blaze battery is draining very quick

[Mike752]

I charge my blaze to full power and the battery can’t even last 2 hours! I thought Fitbit guaranteed 3 day battery life it’s quite disappointing. Also my heart rate sensor will not work at all, I set the settings to on and it will not work. I’ve also tried restarting the blaze but still nothing

Moderator edit: updated subject for clarity

[MarreFitbit · Accepted solution]

Hello there @Mike752!  I'm sorry for the late response. I totally understand how you feel. Thanks for the steps you've tried to solve the issue with the battery and heart rate.

Please take a look at the help article Why isn't my Fitbit device's battery charging? and follow the instructions provide there.

We recommend to charge your trackers via the USB port over a wall adapter. However, it is also possible to charge your Fitbit tracker with a UL certified wall adapter. What may actually cause damage to the tracker's battery (either on a computer or a wall adapter) is the charging time, which if excessive over time may damage the battery and therefore cause quick battery drain or prevent the tracker from charging at all. 

Tips to best charge Fitbit trackers are:

• Use only genuine Fitbit charging cables
• Use only UL-certified wall chargers
• Avoid USB battery packs
• Charge at room temperature

For charging purposes, your charging cable can be plugged into any USB power source, including but not limited to:

• A computer
• A Wall A/C to USB adapter, commonly found with smartphones
• A DC to USB adapter (vehicle power port) 

About the heart rate, please take a look at the help article: Why don't I see my heart rate on my Fitbit device?