Our battery is a non-standard size battery due to the fact that there is no standard size to fit within a ring. This means that you cannot replace it at home. After the battery has died, you can send us your Ring Clock and we will replace the battery. The fee of the battery replacement service is $30 + shipping cost - the expected cost of battery replacement with shipping cost is around $60.
The standard warranty period of the Ring Clock is 1 year. It is expected that the customer will send back the ring clock to us at their own expense, we will review it and if the failure is not due to abnormal usage it will be repaired or replaced and it will be delivered free of charge. The warranty is not applicable to cases other than defects in material, design and workmanship.