About this replacement
Ring Video Doorbell 2 — 3.7V Li-ion Replacement Battery (8AB1S7-0EN0)
This 3.7V, 5200mAh Li-ion cell is a direct replacement for the Ring Video Doorbell 2 (8VR1S7), Video Doorbell 3 Plus, and Spotlight Cam. It slots into the same battery bay and connects via the original contacts. Fits all models sharing the 8AB1S7-0EN0, V4, 5AT3S3, and 5F53E9 OEM part numbers.
- Multi-model compatibility — Video Doorbell 2, 3 Plus, and Spotlight Cam: These devices share a common 3.7V battery bay, contact layout, and BMS handshake protocol. One cell works across the platform without modification.
- Bench tested on actual hardware: We cycled this cell through full charge and discharge on a Video Doorbell 2 unit. The BMS reported correct voltage thresholds at every stage, and motion recording logged without interruption across multiple triggered events.
- First-install power cycle — do this before mounting: After inserting the battery, trigger a manual power cycle through the Ring app before reinstalling the faceplate. The doorbell's firmware must register the new cell before motion event timestamps and cloud upload sessions sync correctly.
Why the Video Doorbell 2 goes offline in the app after a battery swap
Swapping the battery interrupts power long enough for the doorbell to drop its authenticated session with Ring's cloud servers. The device comes back online at the hardware level, but the app loses its registered token. This shows as "offline" even though the doorbell's LED is lit. Open the Ring app, go to Device Health, and use the reconnect prompt — this re-establishes the session without a full factory reset.
App reporting 0% or incorrect charge percentage after installation
Ring doorbells use a voltage-threshold indicator, not a fuel gauge IC. When a new cell is installed, the firmware has no stored discharge curve to reference, so it defaults to 0% or an arbitrary low reading. Run one full charge cycle via the included cable or Quick Release Charger until the app confirms 100%. After that single cycle, the voltage curve maps correctly and percentage readings stabilise.