Okay, I have the Ring 2 from Costco, about 2 years old. The fix: has been said here before, but I just now completed this, and am now showing as "Hardwired", where it was "Battery". As such, this should work.
Remove Ring 2 from where it is installed. On the back of the unit, you will see 10 small screws, I'm talking small, took 6 or 7 phillips screwdrivers to find one small enough to fit. Remove all 10 screws, and remove the rear faceplate. On the inside of the rear faceplate, you will find two (2) gold coloured contacts. These make contact with two small pins, which are spring loaded. Place a small dab of solder on the end of eack gold coloured contacts. Fit the unit back together, it should fit easily. If there is major resistance, you may need to adjust the solder dab so that it will fit back into the right place without much effort. Reassemble the unit, insert battery, and you should see "Hardwired" after the unit fires up. Turns out NOT to be a hardware fix that is required, but a new unit or the above repair are all that seem to work.
Hope this is helpful to all, I like Ring, but like others are annoyed that Ring seems to not want to address the poor quality control issues.
Thank you @Eljay, for reaching out to our support team, and for updating us with your results.
When it comes to battery power there are many variables that should be considered, and sometimes our support team can provide further insight into these concerns.
As mentioned prior in this thread, our Community post about battery drain covers various steps on improving battery life. Factors such as number of events, wifi signal strength, temperature, and other usage variables can certainly drain the battery.
Keep in mind, our devices should not be taken apart or altered in any way that is not intended. This can void warranty as well as impact intended operation of the device. It would be best to reach out to our support team if the above steps did not help to resolve your charging concerns. Please give our support team a call at one of the numbers available here. We’re taking additional steps to protect our team and help reduce the spread of COVID-19, so this has resulted in longer than normal wait times. If you are outside of the US, please read our response to COVID-19 here to see how to contact support.