All of our watch models batteries' uses single cell battery, which can be found at any electronic store as well as most watch repair or jewellery shops.
Any watch repair shop should be able to assist you with the battery replacement. We don't suggest replacing the battery, as it requires some special tools and you could damage the back of the watch case.
Battery changes are not considered as a warranty repair service. Battery change service is considered as out-of-warranty resolution at Nordgreen.