Victron Energy Smart Battery Sense wireless voltage & temperature sensor — 12/24/48V, Bluetooth for MPPT chargers

Victron Energy Smart Battery Sense is a compact wireless sensor that measures battery voltage and temperature to optimize charging for Victron MPPT solar chargers.

Designed for off-grid, mobile and backup power systems, this sensor transmits accurate battery information to one or multiple Victron MPPT Solar Chargers via the VE.Smart Network (Bluetooth Smart). By providing real-time voltage and temperature data, the Smart Battery Sense enables chargers to adjust charging behavior to better match battery conditions, improving charging efficiency and helping reduce stress on the battery bank.

How does the Smart Battery Sense improve charging for my solar setup?

The sensor sends precise battery voltage and temperature readings to compatible Victron MPPT chargers, allowing them to adapt charge voltage and timing. This reduces over- or under-charging caused by cable losses or ambient temperature changes, so the charger works from a more accurate reference point.

• Wireless transmission of voltage and temperature to MPPT chargers
• Compensates for voltage drop between battery and charger
• Temperature compensation adjusts float and absorption voltages
• Works simultaneously with multiple chargers on the same battery bank

What battery systems and voltages are supported?

Smart Battery Sense is compatible with 12V, 24V and 48V battery banks used with Victron MPPT Solar Chargers. It communicates with any charger that supports the VE.Smart Network, and a single sensor can serve more than one charger connected to the same battery bank.

• Works with 12V, 24V and 48V lead-acid and lithium battery systems
• Single sensor can be used by multiple chargers on the same bank
• Set up and pairing through the VictronConnect mobile app
• Suitable for standalone solar arrays, marine installs, RVs and cabins

How easy is installation and setup?

Installation is intentionally simple: attach the two supplied eyelets to the battery terminals and stick the unit to the battery body with the integrated adhesive strip. Pairing and configuration are handled through the free VictronConnect app, which walks you through joining the VE.Smart Network.

• Two eyelets connect directly to battery positive and negative
• Self-adhesive backing secures the sensor to the battery case
• No wiring to the charger needed—data is sent wirelessly
• Quick pairing and network setup via VictronConnect

What should I expect in daily use and maintenance?

Once installed and paired, the Smart Battery Sense operates autonomously, periodically transmitting voltage and temperature. Its low-profile housing requires minimal maintenance—just ensure battery terminals and adhesive mounting remain secure and free from corrosion.

• Periodic wireless data updates to connected MPPT chargers
• Low-maintenance—check connections and adhesive periodically
• Helps chargers adapt to temperature swings and cable losses
• Battery data can be viewed and monitored in VictronConnect

Who is this for: Victron Energy Smart Battery Sense is aimed at homeowners, marine owners, RVers and installers using Victron MPPT solar chargers who want a straightforward way to feed accurate battery voltage and temperature data to their charging system. If you need a tidy, wireless sensing solution to improve charge precision across 12V, 24V or 48V battery banks—especially when multiple chargers are present—this sensor is a practical add-on that integrates with the Victron ecosystem.