Wyze Cam Pro 2K Replacement Battery 3.7V 5200mAh

Wyze Cam Pro 2K — 3.7V Li-ion Replacement Battery (WBAT-1)

This 3.7V 5200mAh (19.24Wh) Li-ion cell replaces the original WBAT-1 battery in the Wyze Cam Pro 2K wireless security camera. It fits both the Pro 2K and Cam Pro variants that share the same battery compartment and voltage rail. Capacity matches the factory spec from the product data above — no guessing from third-party sources.

• Pro 2K and Cam Pro compatibility: Both models run the same 3.7V single-cell architecture with an identical connector and BMS handshake protocol. Swapping between them requires no adapter or firmware workaround — the cell seats and registers the same way in either housing.
• Bench tested on actual hardware: We cycled this cell through motion-triggered recording sequences and monitored BMS behaviour under combined IR LED and processor draw spikes. The protection circuit held cutoff at the expected low-voltage threshold without false tripping during sustained night-vision sessions.
• First install power cycle: After fitting the new cell, perform one full power cycle through the Wyze app before relying on motion recording. The camera's firmware must register the new cell to log motion events correctly to cloud storage — skipping this step can cause missed clips even when the battery shows a charge.

Camera going offline in the Wyze app after a battery swap

When you pull the original cell and install a replacement, the camera loses power entirely — even briefly. That power break causes the firmware to drop its active session token with the Wyze cloud server. The camera reboots and attempts to reconnect, but the app sometimes holds the old session and shows the device as offline. Open the Wyze app, navigate to the device settings, and use the restart option to force a clean reconnect. If the camera stays offline, remove it from the device list and re-add it — the pairing process re-registers the session token from scratch.

App showing 0% or incorrect charge percentage after install

The Wyze Cam Pro 2K reads battery level using a voltage-threshold indicator, not a fuel gauge IC. After installing a fresh cell, the firmware may not yet have a calibrated voltage baseline and will report 0% or a stale value from the previous battery. Run one full discharge-and-charge cycle through normal camera operation — the indicator recalibrates against the new cell's voltage curve. After that cycle, the percentage displayed in the app should track accurately against actual remaining capacity.