No first hand experience but I stole this from their website.
"Celestron warrants most of its binoculars and spotting scopes to be free from defects in materials and workmanship for the binoculars usable lifetime to the original owner. Each binocular or spotting scope series will list the warranty for it on the Celestron website.
Celestron will repair or replace the binoculars or spotting scope which, upon inspection by Celestron, are found to be defective in materials or workmanship and within the definitions of the limits described below.
This warranty is effective January 1, 2012 and supersedes all other warranties as noted in brochures, instruction manuals, product packaging, etc.
This warranty does not cover products that have been subject to abuse, misuse, physically damaged, altered, or had unauthorized repairs or modifications. This warranty does not cover defects due to normal wear and tear and other conditions.
Celestron shall use reasonable efforts to repair or replace any binocular or spotting scope covered by this warranty within 30 calendar days of receipt and if it takes longer the customer will be notified.
If warranty problems arise, or if you need assistance in using your binoculars or spotting scope, contact:
Celestron
Technical Support Department
2835 Columbia Street, Torrance, CA90503 USA
Tel. 310-803-5955 or
www.celestron.com/support
This warranty is valid to U.S.A. and Canadian customers who have purchased their binoculars or spotting scope from an authorized Celestron dealer in the U.S.A. or Canada. Warranty service outside the U.S.A. and Canada is valid only to customers who purchased from a Celestron Distributor or authorized Dealer in the specific country and please contact them for such service".