Ring Video 2 Short Battery Life (Only 2 months old !)

I fitted our new doorbell 2 in Feb/March of this year, the app indicated low battery after about 8 weeks, since I fully recharged it it now only lasts for about 3 days before it needs charging again. I read that a long event list could cause a quick discharge (can't see how that can be.) so I deleted all events and recharged but as expected it was flat again within 3 days. From what I've found via researching this is a very common problem but I haven't found a fix. I sit time to send it back ? When its working its quite good (a bit of a lapse on connecting with the app when someone rings it but does seem better with the Ring Rapid app. Any help greatfully received. Thanks.