VICTRON SMART BATTERY PROTECT 12V/24V 65A Low Voltage Load Disconnect with Bluetooth




Protects the battery against excessive discharge and can be used as a system on/off switch

The Smart BatteryProtect disconnects the battery from non-essential loads before it is completely discharged (which would damage the battery) or before it has insufficient power left to crank the engine.  The on/off input can be used as a system on/off switch.
12/24 V auto ranging
The Smart BatteryProtect automatically detects system voltage one time only.  Bluetooth: programming made easy When using Bluetooth to program the Smart BatteryProtect any required engage/disengage levels can be set. Alternatively, one of nine predefined engage/disengage levels can be set with the programming pin (see manual). If required, Bluetooth can be disabled. 
Instant Readout 
VictronConnect can display the most important data of the Smart BatteryProtect on the Device List page without the need to pair with the product. This includes visual notifications of warnings, alarms, and errors that enable diagnostics at a glance.  

A special setting for Li-ion batteries 
In this mode the BatteryProtect can be controlled by the VE.Bus BMS. Note: the BatteryProtect can also be used as a charge interrupter in between a battery charger and a Li-ion battery. See connection diagram in the manual.  

Ultra-low current consumption 
This is important in case of Li-ion batteries, especially after low voltage shutdown. Please see our Li-ion battery datasheet and the VE.Bus BMS manual for more information.  

Over voltage protection 
To prevent damage to sensitive loads due to over voltage, the load is disconnected whenever the DC voltage exceeds 16.3V respectively 32.6V.  

Ignition proof 
No relays but MOSFET switches, and therefore no sparks.  

Delayed alarm output 
The alarm output is activated if the battery voltage drops below the preset disconnect level during more than 12 seconds. Starting the engine will therefore not activate the alarm. The alarm output is a short circuit proof open collector output to the negative (minus) rail, max. current 50 mA. The alarm output is typically used to activate a buzzer, LED or relay.  

Delayed load disconnect and delayed reconnect 
The load will be disconnected 90 seconds after the battery voltage drops below the preset level. If the battery voltage increases again to the connect threshold within this time period (after the engine has been started for example), the load will not be disconnected. 
The load will be reconnected 30 seconds after the battery voltage has increased to more than the preset reconnect voltage. 


Max. continuous load current: 65A
Peak current (during 30 seconds): 250A
Operating voltage range: 6-35V
Current consumption: When on: 1,4 mA. When off or low voltage shutdown: 0,9 mA
Alarm output delay: 12 Seconds
Maximum load on alarm output: 50 mA (short circuit proof)
Load disconnect delay: 90 seconds (immediate if triggered by the VE.Bus BMS) 
Load reconnect delay: 30 seconds 
Default thresholds: Disengage: 10,5V or 21V   Engage: 12V or 24V 
Operating temperature range: Full load: -40°C to +40°C (up to 60% of nominal load at 50°C)
IP rating: Electronics: IP67 (potted)       Connections: IP00 
Connection: M6
Mounting Torque: 5Nm
Weight: 0,2 kg   0.5 lbs 
Dimensions (H x W x D): 48 x 55 x 106 mm 1.9 x 2.2 x 4.2 inch 

SKU: BPR122022000

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