fadi834 years ago+110How long is the life of the batteries? 3 months? 2 years...? I'm looking for a product that doesn't need to have the battery changed so often...Show in original language (German)jacqueline4 years ago • purchased this product000purchased this productWe have had it on the front door for over 6 months and the batteries are at 96%.Show in original language (German)CommentGRO304044 years ago • purchased this product000purchased this productFront door within 2 months from 100% > 93%.Windows within 2 months from 100% > 95%via MQTT to HACR123 batteries (not included) are required.Show in original language (German)Commentgschwinds4 years ago000The manufacturer says 18-24 months. Of course, this always depends on how often the sensor has to work. Batteries/battery packs are apparently not included.https://shelly.cloud/knowledge-...https://shelly.cloud/documents...Show in original language (German)Comment