Video doorbell4 and transformer

ok, installed the new video door bell 4, installed the ring transformer, not charging???
at transformer 13.91 volts
at door bell 13.91 volts using a Klein meter
put in brand new battery at 100% charge
two days later it shows
Hardwire and now 90%

Hi @Roy_B. Are you still having this concern? Typically, when you initially hardwire your cam, it will drop to around 90% and then start to trickle charge you battery. You can learn more about this here.