The Jabra Spare battery is not covered under Jabra Warranty terms as it is an accessory.
Global Teck provides a 30-day money back guarantee. If you have questions about the Jabra Spare battery #14151-02 for GN9330e, 9350e and Mitel Cordless headsets (For Mitel phones: 5330, 5340, 5360) contact us prior to purchase if you have any questions.