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Heltec Energy Battery Monitor: 1mA Precision, 9-40V Range for 12/24/36V Lead-Acid Vehicle Batteries

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Heltec Energy HT-BM01 HT-BM02 Lead-Acid Battery Monitor

Monitor, Protect & Track Your Vehicle Battery with Ease

Core Functions at a Glance

  • Real-Time Battery Insights: Track voltage (9-17V), power, temperature, and internal resistance in real time

  • Battery Health Evaluation: Sync CCA (cold start current) data to estimate battery lifespan

  • Driving Trajectory Playback: Record start/end points & preserve 30 days of local driving data

  • Smart Alarm: Customize low-battery alert thresholds for automatic prompts

  • Multi-Language Support: 10 languages (Chinese, English, Korean, etc.) for global users

Wide Vehicle Compatibility

Works with all 9-17V lead-acid battery-powered vehicles:

Cars, electric vehicles, motorcycles, trucks, RVs, golf carts, yachts

Effortless Connection & Use

  1. 1-Click Bluetooth Pairing: No complex setup—connect to Android/iOS/HarmonyOS phones instantly

  2. Easy APP Installation: Scan QR code or download from app stores

  3. Intuitive Dashboard: Clear display of battery status, curves, and alerts (view anytime, anywhere)

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Product Parameters

Why Choose Our Battery Monitor?

24/7 Protection: Avoid unexpected battery failures on the road

User-Friendly: Simple operation for both beginners and professionals

Versatile: Ideal for daily commutes, long trips, and vehicle fleets

Package Includes

Color

9-17V, 8-40V

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