If the battery fails within one year, Haoyang will provide free technical support. If it is technically impossible to repair, the company will send a new battery to the customer, and the customer will bear the shipping cost.

The company provides technical guidance for batteries more than one year, but if the battery needs to be replaced, the customer will pay the cost, product and delivery.

Increase the price by 10% on the original basis, and you can enjoy a 2-year warranty.