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Rechargeable batteries do have a life span. A lithium rechargeable battery, such as in the Fitbits have a average life span of 2-3 years from when it was manufactured. In addition, during that time it can be recharged hundreds of times. But with each discharge/recharge cycle it losses a small (very small) fraction of its charging capacity.
You can try these steps to see if it helps
Please clean the contacts
I suspect this wont work But its worth a try
Wendy | CA | Moto G6 Android
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