Ring Battery won't Charge

I have the Ring Battery Doorbell Plus, which i bought in the summer, which has now stipped charging. I plugged it in, the charging lights came on, but after 15 hours, it was still an ora ge light, i put the battery back in the doorbell, and it was still on 6%! I changed outlets and tried again, leaving it to charge overnight, but again it’s still only saying 6% when i put it back in. This is the only rhe 3rd ever timenive charged it, and is only about 5/6 months old. Please help?