Victron Energy Smart Battery Monitor BMV-712 Bluetooth Inside &

Smart Battery Sense Voltage and Temperature Bluetooth Sensor

With Bluetooth built-in, the BMV Smart is ready for the Internet of Things (IoT) era. 
With Bluetooth being implemented in most other Victron Energy products, wireless communication between products will simplify system installation and enhance performance.

Smart Battery Sense is a wireless battery voltage and temperature sensor for Victron MPPT Solar Chargers.
By measuring voltage at the battery bank terminals, errors arising from voltage-loss due to cable resistance are avoided - guaranteeing the correct charge-voltage.

For lead batteries, battery temperature data is used to adjust the charge-voltages: cold batteries require an increased charge-voltage, whereas hot batteries require a decreased charge-voltage. For lithium batteries temperature data is used to disable charging when they are too cold: charging lithium batteries near or below freezing causes permanent damage to the cells.