Quick Answer

The eufy Rechargeable Battery Pack with USB-C is a 6,500 mAh backup power source designed for eufy Video Doorbell C31, C30, and E340. Use it when your doorbell's internal battery runs low or as a primary power option for easier removal and charging.

Why Use a Dedicated Battery Pack Instead of a Generic Power Bank?

A standard USB power bank might seem like a cheaper alternative, but it lacks the secure clasp and voltage regulation designed for eufy doorbells. The official battery pack snaps into place with an intuitive clasp, so it won't disconnect during a breeze or bump. Generic banks often require dangling cables and may not fit the weatherproof housing.

The trade-off is that the eufy pack is only compatible with three specific models (C31, C30, E340). If you have an older eufy doorbell or a different brand, this accessory won't work. For those models, however, it provides a clean, all-weather power solution that a generic bank cannot match.

Diagnosis: When and How to Use the Battery Pack

  • Symptom: Your eufy doorbell shows a low battery warning or stops responding to live view.
  • Likely Cause: The internal battery has drained, or the doorbell has been running on a weak charge for several weeks.
  • Corrective Action: Remove the doorbell from its mount. Press the clasp on the existing battery pack (or internal battery compartment) and slide it out. Insert the fully charged eufy Rechargeable Battery Pack with USB-C until it clicks. Reattach the doorbell. If the doorbell still shows low battery after replacement, charge the pack fully via USB-C before reinstalling.
  • Stop or Choose Another Option: If your doorbell model is not C31, C30, or E340, this pack is incompatible. Stop and check your doorbell's model number. For incompatible models, consider a wired power adapter or a solar panel charger instead.

Product Facts

  • eufy Rechargeable Battery Pack with USB-C: 6,500 mAh capacity, up to 6 months of use from a single charge. You can install the pack and forget about charging for half a year under normal usage, making it ideal for hard-to-reach doorbells.

    eufy Rechargeable Battery Pack with USB-C

    eufy Rechargeable Battery Pack with USB-C

  • eufy Rechargeable Battery Pack with USB-C: Official Accessory: Works with eufy Video Doorbell C31, C30, and E340. Compatibility is limited to these three models, so verify your doorbell before purchasing.