About this replacement
Nest Doorbell — 3.65V Li-Polymer Replacement Battery (G823-00179-01)
This 3.65V, 6000mAh Li-Polymer battery is a direct replacement for the Nest Doorbell (GQ STYLE AC, GWX3T). It restores power to the doorbell's continuous video recording, motion detection, and two-way audio functions. Fits models referencing part numbers G823-00179-01 and GS25.
- GQ STYLE AC and GWX3T compatibility: These Nest Doorbell variants share the same battery bay dimensions, connector orientation, and BMS handshake protocol — one cell covers all three listed models without modification.
- Bench tested on actual hardware: We ran this cell through charge and discharge cycles on a Nest Doorbell unit. The BMS accepted the cell without error flags, and the protection circuit responded correctly to both charge cutoff at full voltage and discharge cutoff under simulated motion-event current spikes.
- First-install power cycle on the Nest app: After fitting the battery, trigger a manual power cycle through the Nest app. The firmware must re-register the new cell before motion recording events log correctly to cloud storage — skipping this step can cause missed clip uploads even when the camera appears online.
App showing 0% or stuck percentage after battery swap
The Nest Doorbell reads battery level using a voltage-threshold indicator, not a fuel gauge IC. When a new cell is installed, the firmware hasn't yet mapped the discharge curve of the replacement cell, so the percentage display can freeze or read incorrectly. Running one full charge-to-discharge cycle forces the firmware to recalibrate its voltage-to-percentage thresholds. After that cycle, the app should display an accurate reading at the correct voltage floor — approximately 3.0V at the low-end cutoff.
Nest Doorbell going offline in the app after battery installation
Replacing the battery clears the doorbell's active session token, which the Nest app uses to maintain the live device connection. The camera may appear offline or unresponsive even with a fully charged cell installed. Open the Nest app, navigate to the device settings, and re-add or relink the doorbell to re-establish the session. If the app still shows offline after relinking, confirm the battery voltage reads above 3.5V before troubleshooting the WiFi connection.