Both EcoFlow and Bluetti manufacturer’s warranty are provided by the brands directly. 12VNomad.com as a reseller of products do not have authorization or facility to service battery related products.
All warranty claim, return for repair & services, and replacement are managed, qualified and processed by EcoFlow and Bluetti brands.
Please visit the page link below for each brand warranty details and instructions:
EcoFlow USA: https://us.ecoflow.com/pages/warranty-policy
EcoFlow Canada: https://ca.ecoflow.com/pages/warranty-policy