About this replacement
Ring Video Doorbell 3 / 3 Plus / 4 — 3.7V Li-ion Replacement Battery (V4)
This 3.7V, 12400mAh lithium-ion battery replaces the original cell in the Ring Video Doorbell, Video Doorbell 3, Video Doorbell 3 Plus, and Video Doorbell 4. All four models share the same battery format, connector, and BMS handshake. Swap it when the original cell no longer holds a charge through a full day of motion events and visitor alerts.
- Video Doorbell 3, 3 Plus, and 4 compatibility: These three generations use the same removable quick-release pack with identical voltage rail and connector pinout. The BMS negotiation sequence is also the same across all three, so one battery covers the group without any adapter or firmware workaround.
- Bench tested on actual hardware: We cycled this cell through repeated motion-trigger events and two-way audio sessions on a Video Doorbell 4. The BMS held the voltage rail steady across combined IR LED and processor draw spikes without tripping into protection cutoff.
- Post-install power cycle on first use: After fitting the new battery, trigger a manual power cycle through the Ring app before the doorbell records its first event. The firmware must register the new cell's voltage baseline so the motion recording pipeline logs correctly to cloud storage from the first trigger.
Why the Ring Video Doorbell 4 shows incorrect battery percentage after a swap
The Ring app uses a voltage-threshold indicator, not a fuel gauge IC. When a new cell goes in, the app reads the resting voltage and maps it to a percentage using fixed thresholds — but until the battery completes one full discharge and recharge cycle, that mapping is often off. You may see 99% drop to 60% within an hour, or the percentage stall for hours before moving. Run one complete cycle — drain through normal use, then charge to full — and the threshold indicator will calibrate to the new cell's actual voltage curve.
Ring doorbell goes offline in the app immediately after battery installation
Removing the battery clears the active firmware session token. When the new battery goes in, the doorbell boots fresh but the Ring app still holds the old session, so it shows the device as offline even though the hardware is running. Open the app, go to Device Health, and force a reconnect — the doorbell will re-register on the network and restore the live view. If it stays offline, remove the battery for 10 seconds, reinsert, and let the boot sequence complete before retrying the app reconnect.