Eufy G30 Hybrid (Open Box)

This is my first Amazon review, sadly it's a negative one. I bought this is July on Prime day special. I was excited to get it. The vacuum worked fantastic the first few days even attempting to clean our entire house after it would rest and recharge. I had bought it to only clean on portion of our house knowing it was not big enough to clean the whole house. The first week the vacuum would clean the areas like a champ and then recharge and clean the other portion of our house on it's second run. After about two weeks it started only cleaning the one side and not going back out. I cleaned the bot every time it ran faithfully and made sure check the app often for cleaning suggestions. In December the bot disappeared and didn't return to the base. We found it and returned it and thought maybe it had gotten stuck but then it started happening every time it went out. Now it will charge for a full two days and only run for 4 mins (I times it today). I can't return to Amazon and have contacted the seller with no response as to how I can return or get a new battery for my bot. I am not happy with this purchase at all. I am saddened because I did love the convivence and job it preformed when it was working. I have friends that have this brand and are very happy with it. I wish the company would follow through and back up their product. I understand I could have a defective battery but it would be nice to be able to troubleshoot with someone.