Ring Solar Charger
Crutchfield Customer Review (What's this?)
The Ring Solar Charger is a great addition to my Ring door bell, i have my Ring's live view enabled which uses more power which drained my battery a lot faster but the Solar Charger keeps my Ring fully charged.
Pros: It maintains a fully charged battery fully charged.
Cons: If the battery is not fully charged the Solar Charger doesn't produce enough power to fully charge the battery, so the battery should be fully charged before connecting the Charger.