To help promote longer battery life, regular charging of the watch (about once a month) is recommended even if you do not use it for a long time. If you do not plan to use the product for a long time, thoroughly wipe it free of all dirt, sweat, and moisture, and store it in a location that is not subject to high temperature and/or high moisture. For soiling during normal use, rinse the watch with water, wipe off the water with a soft cloth, and then allow the watch to dry thoroughly.