65mAh LSS271617 Battery Replacement Compatible with Fitbit Charge 5 Fitness Smartwatch FB421 with Installation Tools.

• Replacement for the Following Battery Model/Part Numbers: LSS271617.
• Intended for/Compatible with the Following Smartwatch Models: Fitbit Charge 5, FB421, FB421BKBK, FB421SRBU, FB421GLWT.
• 3.87V 65mAh 0.25Wh Lithium-Polymer Rechargeable Battery Pack.
• Includes Free Installation Tools.
• 1 Year Replacement Warranty.