
-The quality of plastic is highly selected.-The quality of the cells is of the highest quality.Why most customers purchase Fitbit batteries from us? If the appearance or capacity/voltage of the above Fitbit FB503 battery does not match your original battery, please contact us quickly and send an email. Li-Polymer rechargeable battery is not compatible with other types of battery, like ni-mh, ni-cd, button battery or PLC battery. "Fitbit battery FB503" provided by is a brand-new battery that is perfectly compatible with Fitbit Ionic Smartwatch Ionic Battery. Please carefully read the FB503 battery information and compatible models provided by us, please do not buy it by mistake. Items for replacing Fitbit Ionic Smartwatch Ionic Battery battery FB503 Respect the production and disposal criteria currently in force within the European Community. It complies with European Community regulations.


Lithium-ion battery assembled with high-grade lithium-ion cells quality.
