My Charge HR's battery won't last longer than 10hrs

[Manny09]

I've had my charge hr for days now. I bought it on Mercari brand new with sealed packaging, and when I opened it up it was 100% new. Ever since I got it, I've been getting notifications on my phone that the battery is almost dead every 8hrs or so. I charge it overnight so I can use it during the day, but by doing that I lose the sleep monitor feature and I find that frustrating. I've turned off All-Day Sync and Quick View. I also only have one alarm, and I charge the watch on my laptop with the original charger. I'm looking for any extra tips anyone has to help me out, your help is greatly appreciated. 

[Rich_Laue]

Are you sure it is a Charge Hr which hasn't been sold for almost 5 years? 

By now the battery may be no good. 

[Manny09]

Yes, it was sealed when I got it. And I still have the box that says “Charge Hr.” You’re probably right, it’s been a while since it’s been sold which might affect the battery, but it’s brand new right out of the box. 

[Rich_Laue]

Then I would contact the seller, or contact.fitbit.com 

[tonyfrompetone]

Manny - check that you have the heartrate monitor function set to 'auto' so the LEDs are only on when you are wearing the band. I guess the 8-10 hrs you refer to are the actual wearing time.

T.

[Manny09]

Yes, It would barely get me through a day. When it comes to settings so that the battery is optimized, I’ve done them all, including the auto HR setting.

Sent from my iPhone

[tonyfrompetone]

Scratching for fixes here but have you reset/rebooted the device? That is, press and hold the button on the side, with the tracker plugged into a charger, until a little icon with the FW revision number appears on the display. it takes about 5-10 seconds to reboot.

T.

[Manny09]

Yeah, I think I’ve rebooted it 4x.The battery must be in a bad condition because these things just don’t help. Thank you for the help anyway though, I’ll just use it as is.

[Rich_Laue]

Lithium batteries have a limited number of recharging cycles, letting them fully discharge or charging to 100% also isn't good. Heat also damages, in short these batteries have a limited life span. 

Amazon does sell replacement batteries and you will find YouTube videos on how to replace. 

If your not up to it, a teenager even a friend's handy 10 year old could.