12V Bluetooth 4.0 BM2 Battery Monitor Tester

Real-Time 12V Battery Telemetry: Wirelessly monitors lead-acid, AGM, GEL, and 12V lithium batteries via Bluetooth 4.0, delivering instant voltage and charge percentage updates directly to your smartphone.

Automated Cranking & Charging System Tests: Performs automated health diagnostics, analyzing starter motor voltage drop during engine crank and checking alternator charging performance in real time.

Continuous Historical Data Logging: Automatically records voltage trends every 2 minutes and stores up to 31 days of historical battery data for early detection of parasitic drain or battery degradation.

Smart Push Notifications & Safety Alerts: Sends automatic mobile notifications when your battery voltage drops to critical levels or when unusual charging behavior is detected.

Compact IP67 Weatherproof Design: Enclosed in a compact, fireproof, and water-resistant housing with low internal power consumption (approx. 1.5 mA) to prevent draining standby power.

Housing Material: Heat-resistant ABS plastic casing with durable copper ring terminals and built-in short-circuit/reverse polarity protection.

Technical Specifications:

Operating Voltage: 6V – 20V DC (Optimized for 12V systems).

Communication: Bluetooth 4.0 (Up to 10m / 33ft wireless range).

App Support: Compatible with iOS and Android mobile devices.

Average Current Draw: 1.5 mA.

Housing Color: Black with red/black lead rings.

Usage Advice: Attach the red ring terminal directly to the positive battery post (+) and the black terminal to the negative post (-); scan the QR code to install the mobile application and sync via Bluetooth.

Maintenance: Ensure battery terminal connections remain tight and clean of corrosion to preserve wireless accuracy and reliable telemetry readings.

Essential Intelligent Automotive & Solar Monitor: Position as a top-tier diagnostic monitor for vehicles, RVs, motorhomes, marine vessels, and 12V off-grid solar power banks.

Highlight Hands-Free Bluetooth Diagnostics: Emphasize how users can test battery voltage, starter motor health, and alternator output without opening the vehicle hood or using a manual multimeter.

Recommended Cross-Sell Add-ons: Pair with 12V LY6W Lead Acid Battery Capacity Indicator, 12V 3s Lithium Battery Capacity Tester/Indicator, 150A High Precision WATT Meter & Power Analyzer Module, and ESD antistatic mat 50x40CM PCB Welding Mat.

Featured Collection Star: Display prominently on your Battery Capacity and Voltage Meter collection page as your premium smart 12V Bluetooth battery diagnostic device.