The Victron SmartShunt Battery Monitor is a compact, IP65-rated device designed to track battery health in real-time without a built-in display. Using Bluetooth connectivity and VictronConnect app integration, it monitors voltage (6.5–70V), current (up to 500A), and state of charge (SOC) for lithium-ion (LiFePO4), lead-acid, and AGM batteries. Its shunt-based design measures bidirectional current flow with ±0.1% accuracy, enabling precise energy management for RVs, marine systems, and off-grid solar setups. Pro Tip: Always install the SmartShunt closest to the battery’s negative terminal to minimize measurement errors.
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What defines the Victron SmartShunt’s core functionality?
The SmartShunt operates as a shunt-based monitor, measuring current flow through a 500A/50mV shunt resistor. Unlike traditional monitors, it calculates SOC via coulomb counting and syncs data wirelessly to smartphones. Real-world example: A 12V LiFePO4 system discharging at 100A for 2 hours would show 200Ah consumed, updating SOC accordingly. Pro Tip: Calibrate the shunt annually using VictronConnect’s zero-current offset feature to maintain ±1% accuracy.
How does it interface with different battery chemistries?
The device supports custom charge profiles for 15+ battery types, including LiFePO4 (3.2V/cell) and AGM (2.4V absorption). Through adaptive algorithms, it auto-adjusts charge efficiency factors—94% for lead-acid vs. 99% for lithium. For example, a 48V LiFePO4 bank charging at 50A for 4 hours would register 19.2kWh absorbed. Transitional Tip: When switching battery types, always reset the monitor’s history to prevent voltage-SOC mismatches.
| Chemistry | Voltage Range | Efficiency Factor |
|---|---|---|
| LiFePO4 | 12.8–14.6V | 99% |
| AGM | 11.5–14.4V | 94% |
What installation best practices ensure accuracy?
Install the shunt between battery negative and DC loads, ensuring all current passes through it. Use 35mm² cables for 500A systems to limit voltage drop below 0.1V. Practical example: On a yacht with dual 200Ah AGM batteries, the SmartShunt would measure combined current flow, while separate voltage sensors track individual cells. Transitional Note: Always verify polarity—reverse connections can permanently damage the shunt’s Hall-effect sensors.
How does Bluetooth integration enhance monitoring?
The VictronConnect app provides real-time graphs for voltage, current, and SOC, plus historical data export. Users can set alarms for low SOC (e.g., 20% for LiFePO4) or high temperature (60°C cutoff). Imagine monitoring a solar cabin’s battery from 50km away—if SOC drops below 30%, the app triggers SMS alerts. Pro Tip: Enable “BatterySafe” mode to automatically disconnect loads at critical SOC levels.
| Feature | SmartShunt | Traditional Monitor |
|---|---|---|
| Data Logging | 500 days | 30 days |
| Update Rate | 1 sec | 10 sec |
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FAQs
Yes—it stores 500 days of data internally. However, real-time monitoring requires the VictronConnect app or a Victron GX device.
Is calibration needed for lithium batteries?
Only during initial setup. The auto-sync feature aligns voltage-SOC curves using manufacturer-specified lithium profiles.
What’s the maximum system voltage supported?
70V DC. For higher voltages (e.g., 96V EV systems), use Victron’s Isolated Voltage Sensor (part# SENS012050000).
