Victron Energy BMV-702

The Victron Energy BMV-702 is a premium, high-accuracy battery monitor designed to give you full visibility and control over your energy storage system. Acting as a “fuel gauge” for your batteries, it measures voltage, current, consumed amp-hours, and state of charge with exceptional precision. Its built-in historical tracking, alarms, and programmable relay make it ideal for managing off-grid solar, inverter backup systems, and mobile power setups.

Built for reliability, the BMV-702 includes a 500A/50mV shunt, an auxiliary input for monitoring a second battery or battery temperature, and a user-friendly display. With VE.Direct communication, it easily integrates with Victron GX devices, VictronConnect app, and remote monitoring platforms. Its low power draw and wide voltage range (6.5–95V) make it suitable for everything from small 12V solar systems to large multi-battery banks.

Features & Benefits

• High-Precision Battery Monitoring : Accurately measures voltage, current, ampere-hours consumed, state of charge (SoC), and estimated “time-to-go.”
• Wide Battery Compatibility : Supports 6.5:95V battery systems and capacities up to 9999Ah, ideal for 12V/24V/48V setups.
• 500A / 50mV Shunt Included : Enables accurate current measurement with quick-connect wiring for easy installation.
• Auxiliary Input for Second Battery : Can monitor a second battery’s voltage or be configured for temperature / midpoint voltage tracking.
• Advanced Alarm & Relay Function : Programmable alarms and relay allow load disconnect, generator start, or system protection based on battery conditions.
• Comprehensive Historical Data : Logs deepest discharge, total cycles, average discharge, and more for long-term battery health tracking.
• Low Power Consumption : Ultra-low self-consumption ensures the monitor doesn’t drain your battery bank.
• VE.Direct Connectivity : Connects to VictronConnect App or GX devices for remote monitoring and system integration.
• Durable & Climate-Ready : Operates reliably from :40°C to +50°C, making it suitable for harsh environments like rural Tanzania.
• Easy Installation & Compact Design : Flush-mounted display fits neatly on system panels, providing clear, real-time battery insights.

Use Cases

• Solar off-grid systems : to monitor battery banks (lead-acid, AGM, LiFePO4, etc.) used in home solar setups.
• Backup power systems / inverters : helps track battery usage and remaining capacity when inverter is used for home or business backup.
• Marine / Boats : on boats and yachts where battery management is critical; the secondary input can monitor a starter battery or auxiliary battery.
• RVs / Caravans / Mobile setups : for travelers using battery + solar + inverter to power lights, appliances, etc.
• Small commercial/industrial battery banks : where multiple batteries are connected: midpoint-voltage monitoring helps detect imbalanced cells or failing batteries early.

Value Propositions

• High precision & reliability : ±0.1% SoC accuracy and fine current/voltage resolution enable confident monitoring and decision-making.
• Wide compatibility : supports 6.5–95 V systems and up to 9999 Ah capacity : flexible enough for small 12 V systems to large multi-battery banks.
• Comprehensive monitoring : beyond just current/voltage: SoC, time-to-go, historical data, alarms, relay control : gives a complete picture and automatic protection/control.
• Expandable & future-proof : optional accessories let you integrate with remote monitoring (e.g. via Victron GX devices), smartphone apps, or larger energy management systems.
• Low maintenance & low internal draw : minimal self-consumption ensures it doesn’t meaningfully drain your battery bank.
• Protects battery health : midpoint-voltage monitoring, history logging, and alarms help detect and prevent battery problems early (e.g. poor cell balancing, deep discharges, over-discharge).

Local Market Positioning in Tanzania

• Tanzania has a lot of off-grid solar installations (rural homes, small businesses, clinics, farms). BMV-702 gives a reliable, easy-to-read “fuel gauge” for battery banks — enabling efficient management and avoiding premature battery failure.
• For small shops, clinics, or households depending on battery + inverter for backup / lighting / refrigeration: it helps know exactly how much usable energy remains — better than relying on voltage alone (which can be misleading).
• For entrepreneurs or small business using solar + inverter for tools, refrigeration, or lighting — BMV-702’s relay function could automate generator start or disconnect non-critical loads when battery is low.
• For marine/off-grid transport (boats, rural transport), or mobile solar units — simple installation and wide voltage range make it flexible and robust against harsh conditions (high/low temperature, variable battery types).
• Given its global warranty and support — even in markets like Tanzania, importers and installers familiar with global Victron solutions can support customers.

Technical Specification