VoltWatch Support
VoltWatch monitors compatible DailyBMS/JBD/Xiaoxiang Bluetooth battery-management systems directly from Apple Watch.
Before connecting
- Confirm the BMS is powered on and Bluetooth is enabled.
- Keep Apple Watch close to the BMS.
- Allow Bluetooth access when watchOS asks.
- Disconnect other apps that may already be connected to the BMS.
Device not found
Open Devices, stop any active scan, and scan again. Some BMS modules allow only one Bluetooth connection at a time. Compatibility varies by BMS hardware and firmware.
Incorrect or missing readings
Disconnect and reconnect the device. Do not rely on VoltWatch as the sole indicator of battery safety. The original BMS and manufacturer safety guidance remain authoritative.
Contact
Email tyler@tylerharper.dev. Include the BMS manufacturer, model, firmware version, and Apple Watch/watchOS version. Do not send serial numbers or other sensitive information.