Ring Video Doorbell 2 Replacement Battery 3.7V 6400mAh

Ring Video Doorbell 2 — 3.7V Li-ion Replacement Battery (8AB1S7-0EN0)

This 3.7V, 6400mAh lithium-ion battery replaces the original cell in the Ring Video Doorbell 2 (8VR1S7) and fits several other Ring devices including the Video Doorbell 3 Plus and Spotlight Cam. It slots into the same battery bay and connects via the same contacts as the factory pack. Capacity is 6400mAh (23.68Wh) — pulled directly from product data, not estimated.

• Doorbell 2, 3 Plus, and Spotlight Cam compatibility: These models share the same removable battery bay format, contact orientation, and 3.7V nominal voltage rail. The BMS on each platform expects the same charge termination voltage, so the same cell works across all three without modification.
• Bench tested on actual hardware: We ran this battery through charge and discharge cycles on the Video Doorbell 2 platform. The BMS accepted the cell without fault codes, motion recording initialised correctly, and voltage held steady under the combined draw of the IR LEDs and processor during night-vision events.
• Post-install firmware registration: Power cycle the doorbell once through the Ring app after installing this battery. The firmware must register the new cell before motion events log correctly to cloud storage — skip this step and motion clips may fail to save even though the camera appears live in the app.

Camera going offline in the Ring app after battery swap

Swapping the battery interrupts power to the doorbell's WiFi module, which drops the active session token the Ring server holds for that device. The camera comes back online at the hardware level, but the app may still show it as offline or unresponsive. This is not a battery fault — it is a session re-registration issue. Open the Ring app, go to Device Health, and trigger a reconnect or remove-and-re-add the device to force a fresh handshake.

App reporting 0% or incorrect charge percentage after install

The Ring Doorbell 2 uses a voltage-threshold indicator, not a fuel gauge IC. When a new cell is installed at partial charge, the firmware maps the resting voltage to a percentage — and if that voltage sits between thresholds, the reading can show 0% or jump unexpectedly. Run the battery down until the device gives a low-battery alert, then charge it fully to 4.2V. One complete cycle recalibrates the threshold map and the percentage display will track correctly after that.