Balmar SG230 Battery Monitor Kit N2K BT Gateway Color Display 12-48VDC

Balmar SG230 Battery Monitor Kit N2K BT Gateway Color Display 12–48VDC

The Balmar SG230 Battery Monitor Kit delivers advanced, real-time battery monitoring for modern marine, RV, and off-grid power systems. Designed for 12–48VDC battery banks, the SG230 combines a full-color display, NMEA 2000 (N2K) networking, and Bluetooth connectivity to give you complete visibility into your electrical system—locally, on your chartplotter, or via mobile devices.

This comprehensive kit includes Balmar’s SmartShunt, Bluetooth Gateway, and high-resolution color display, allowing accurate monitoring of voltage, current, state of charge (SOC), state of health (SOH), amp-hours consumed, and time remaining. Seamlessly integrating into existing NMEA 2000 networks, the SG230 shares critical battery data with compatible marine electronics for centralized system awareness.

Ideal for cruising sailboats, powerboats, yachts, RVs, and energy-intensive systems, the SG230 supports multiple battery chemistries including AGM, flooded lead-acid, gel, and lithium (LiFePO₄). Its intuitive interface, high-accuracy measurements, and network expandability make it a powerful solution for maximizing battery performance, safety, and lifespan.

Key Features and Components

• Color OLED Display: Provides a clear, bright interface that is easy to read even in direct sunlight. It displays critical data like voltage, current, and time-to-discharge.

• Bluetooth & N2K Gateway: The included gateway allows you to monitor your battery bank via the Balmar App on your smartphone or integrate the data directly into your boat's NMEA 2000 network.

• Intelligent Learning: Unlike standard monitors that only track "power in vs. power out," the SG230 tracks battery degradation to give you a realistic view of how much life your battery actually has left.

• Multi-Chemistry Support: It is compatible with all common battery types, including Lead Acid, AGM, Gel, and Lithium (LiFePO4).

Specifications

• Voltage Range: 12VDC - 48VDC

• Network Compatibility: Bluetooth and NMEA 2000 (N2K)

• Display Type: 2-inch Color OLED

• Measurement Metrics: Voltage, Amps In/Out, SoC, SoH, and Discharge Time

What’s in the Box

The SG230 kit is a complete "plug-and-play" solution that includes:

• Color OLED Display: A sunlight-readable, 2 1/16" gauge that fits standard mounting holes.

• SmartShunt: A 350A intelligent shunt with a pre-installed 60” fused positive wire.

• Bluetooth® Gateway: Enables wireless monitoring via the free Balmar app for iOS and Android.

• NMEA 2000 (N2K) Adapter Cable: An M12 DeviceNet cable to integrate battery data into your existing network.

• SmartLink Communications Cable: A 10m (approx. 32ft) cable to connect the display and shunt.

• Connector Kit: Includes a Deutsch-style connector and wedgelock to finish the cable installation.

• Mounting Hardware: Includes the bracket and nut for the display.

The Balmar SG230 Battery Monitor Kit is the smart choice for reliable, network-ready battery management where performance and precision matter most.

This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.
Manufacturer : Balmar
Manufacturer Part No : SG230