BatteryProtect smart relay Victron Energy BPR122022000 12/24V 220A (automatic battery isolation)

Victron Energy BatteryProtect BPR122022000 is a smart relay designed for 12/24V battery systems with a continuous current rating of 220A. The device automatically isolates batteries from non‑essential loads to prevent excessive discharge and supports controlled reconnection. It is engineered for reliable battery management in marine, recreational vehicle and off‑grid power installations where maintaining battery health and ensuring available starting capacity are priorities.

Advantages

The BatteryProtect relay provides automatic battery isolation based on voltage and time thresholds, reducing the risk of deep discharge. Its compact switch design and solid contacts deliver stable performance at high continuous currents. Remote control capability allows integration with monitoring systems for centralized management, while the automatic reconnection feature restores power when conditions permit. The unit is built for rugged environments and reliable operation in typical mobile and stationary power setups.

Suitable for

• Marine electrical systems to protect starter and service batteries
• Caravans and motorhomes for preserving leisure battery capacity
• Off‑grid solar and backup power systems requiring battery isolation
• Work vehicles and mobile equipment with auxiliary electrical loads

Key specifications

• Nominal system voltage: 12 V / 24 V compatible
• Maximum continuous current rating: 220 A
• Automatic isolation based on voltage and programmable delay
• Remote control input for external switching and monitoring
• Solid contact relay design suitable for high current switching
• Compact form factor for installation in confined spaces
• Operating environment: designed for mobile and marine applications

How to use

Install the BatteryProtect relay in-line between the battery bank and non‑essential loads following standard DC wiring practices and safety precautions. Connect the remote control input to an appropriate monitoring device or manual switch if remote operation is required. Configure the voltage thresholds and delay settings according to the battery type and desired protection profile so that the relay disconnects loads before deep discharge occurs and reconnects automatically when conditions recover. Ensure proper fuse or circuit protection is placed close to the battery.

Recommendations

Use the relay in systems with clear distinction between starter and service batteries, configure settings to match the battery chemistry and capacity, and routinely check connections and mounting for corrosion or looseness to maintain reliable operation.