Ringconn gen 2 size 12

#ringconn I just bought my ringconn Gen 2. Ive seen many reviews where everyone says it has battery that will last up to 12 hours. To keep in mind depending on the size of the ring. Having one of the bigger sizes I expected a good amount of battery. Seems like I have to charge it every 10th day or before the ring dies. Anyone can tell me how long it's lasted for them in my size ring?