Device Health (battery charge)

Just re-charged my doorbell (original ring), flashing ring on it showed full on, no flashing segments, 100% charged right? Checked Device Health a few hours later and it still shows 32% charge which is what it was when I got the warning that it needed re-charged. Why hasn't it changed to 100%? Is there a force update somewhere? Is this a sign the battery is going to give out or what?