Wiring into existing bell

I'm starting to get buyer's remorse....In researching before I purchased a Ring 4 doorbell, I got the distinct impression that I could wire into my existing doorbell to (a) charge the battery and decrease frequency of maintenance, and (b) utilize the interior bell, so others in the house might be aware of a visitor even if they are not glued to a smartphone.In less than a day after wiring my battery charge shows 93%. That seems like a pretty rapid decrease.The interior bell does not ring; subsequent reading of this community now suggests to me that I need to buy yet another device to act as my "bell". Is that accurate?The instructions to wire it in seemed pretty simple, and the app indicates that it is hardwired, so I have no concerns that it might not be connected properly.