Battery doesnt charge

Bought the ring doorbell 2 about 6 weeks ago. Got it working and after a few weeks I charged it. I was only able to charge it once before this issue started happening. Few days later battery was at 11% so I charged it overnight. Put it back in the doorbell and it still said 11%. Took it back out to charge it and now the lights dont come on that indicate it is plugged into a charger. Left it plugged in even tho I didnt think it was charging and after awhile was curious and put it back into the doorbell. Now it is at 2%. I cant charge the battery is my issue.