Ring Hard wired does not charge enough7

Hello Gurus, I have a Ring 1 device which is installed outside my yard. The Ring is fed through an intercom power supply with 14VAC power supply. I have between 50-70 motion events daily yet the ring does not charge enough. From my understanding the power requirements are minimum of 12VAC One thing I am trying to improve is the wifi signal which might be a cause to more power drain from the Ring Update : while talking to Ring support they claimed that power drain is caused by low Wifi signal . I installed new AP and now I have -60dbm .....yet the battery still drains  Any thoughts ? Ideas