Not on the card itself, but in the user manual it says this:
"15 day free replacement. We will repair or replace a charger within 15 days of purchase if it is afflicted with a manufacturing defect."
Then,
"24 months free repair. We offer free repair within 24 months of purchase if problems develop with normal use."
Then,
"Limited lifetime warranty. If problems develop after 24 months of the purchase date, we will charge for parts. The total repair fee will be assess according to the cost of the replaced materials. If damage to the charger is grave, XTAR will contact distributors with a quote who should contact the customers to decide whether to exchange the parts or not. Freight should be paid by distributors or customers."
Lastly,
"This warranty is not applicable for damages caused by artificial damage or intentional force."
What is artificial damage...?