Balmar SG205 Battery Monitor Kit w/Bluetooth Gateway - No Display

The Balmar SG205 Battery Monitor Kit with Bluetooth Gateway is a sophisticated power management solution designed for marine vessels, RVs, off-grid installations, and tactical mobile command centers requiring real-time battery health monitoring. This advanced monitoring system delivers critical battery parameters wirelessly to smartphones and tablets, eliminating the need for a fixed display module while maintaining full diagnostic capability through a dedicated Bluetooth gateway.

The SG205 employs intelligent, self-calibrating technology that automatically learns and adapts to your battery bank's unique characteristics, supporting all common battery chemistries including lithium, AGM, flooded lead-acid, and gel configurations across a wide range of voltages. The kit's expandable architecture allows integration with multiple battery banks and auxiliary monitoring modules, scaling from single-unit systems to complex multi-bank installations. Wireless connectivity eliminates messy wiring runs from battery compartments to instrument panels, a significant advantage in confined spaces, mobile platforms, and weather-exposed environments where corrosion and physical damage are operational concerns.

This configuration suits operators who prioritize flexible monitoring without dedicated panel real estate—auxiliary power system managers on tactical vehicles, marine electricians handling complex battery architectures, and expeditionary teams requiring portable power diagnostics. The gateway-based design decouples the sensing module from the display, enabling placement of the battery monitor in optimal locations relative to the battery bank while accessing data from anywhere within Bluetooth range. Field operators and technical personnel benefit from on-demand access to state-of-charge, voltage, current draw, temperature, and cycle history without installing permanent instrumentation.

Balmar's reputation in marine and off-grid power systems reflects decades of focus on accurate, durable monitoring hardware. The SG205 represents their modern approach to wireless diagnostics—removing display fragility from the field while preserving the measurement precision operators depend on for preventive power management and troubleshooting. Weighing 0.85 lbs and sized for compact installation, this kit integrates into existing 12V, 24V, and 48V systems without requiring complete electrical system redesign.