BAT-BMS: Bluetooth Monitoring for Lithium‑Ion Battery Systems
Manage lithium-ion packs with BAT-BMS, developed by SHENZHEN GRENERGY TECHNOLOGY CO.LTD., as a mobile replacement for external monitors that connects directly to battery management systems. The app uses Bluetooth Low Energy to show real-time state of charge, per-cell voltages, temperature, and cycle life, and it can toggle charge or discharge switches on compatible hardware. Target users include RV owners, solar technicians, marine operators, and EV hobbyists who need handheld diagnostics and remote control.
What the app does for on-site battery diagnostics
The app communicates over Bluetooth 5.0 Low Energy and presents a professional dashboard with live metrics.
Measured outputs include SOC percentage, total voltage, per-cell voltages, charge/discharge current, internal temperature, and cycle life
. Users can manage multiple battery packs by swiping between pages and view individual cell voltages for imbalance detection. The interface also lists connected packs automatically after scanning, making device discovery straightforward within its operating range.
How the app interacts with devices and the network
BAT-BMS connects directly to a battery management system without requiring internet access for core monitoring, because it uses BLE for local communication. The app supports remote control of charge and discharge switches on compatible systems, which means actions taken in the app write commands to the battery controller. A single battery typically accepts only one active Bluetooth connection at a time, so concurrent remote sessions are restricted by the pack hardware.
Safety and security considerations you must weigh
The app's ability to switch relays remotely raises a clear security dimension: authorities in one market ordered its removal after reports showed third-party packs without password protection could be manipulated. That regulatory action highlights that using the app with unsecured or third-party controllers can permit remote disabling of vehicles or equipment. For safe operation, pair it only with packs that implement access controls and follow device-level security recommendations.
Who can use it and how much technical skill is required
The app targets owners, technicians, and enthusiasts who need granular telemetry and control. Casual users can perform basic monitoring because the app scans automatically and shows high-level SOC and totals, but interpreting individual cell voltages and cycle-life trends requires technical understanding. The app removes the need for an external hardware monitor on compatible systems, though safe use depends on correct pairing and knowledge of battery management principles.
Practical monitoring option with a notable security caveat
BAT-BMS is a practical choice for technicians and system owners who can ensure their packs enforce authentication, because it provides mobile access to granular telemetry and direct control. The single main caveat is the demonstrated risk when used with third-party controllers lacking password protection; users should confirm access controls on their hardware before operating remote switches from the app.