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The Victron Energy Smart BatteryProtect 12/24V 220A protects batteries against excessive discharge by disconnecting non-essential DC loads before the battery voltage reaches a damaging level. It can also preserve enough battery capacity to start an engine and can function as a remote system on/off switch.
The Smart BatteryProtect automatically detects whether it is connected to a 12V or 24V system during its initial setup. Built-in Bluetooth allows the connection and disconnection voltage thresholds to be programmed through the VictronConnect app. Nine predefined voltage profiles can also be selected using the programming pin.
Key Features:
The Smart BatteryProtect is a unidirectional device. Current can flow only from the IN terminal to the OUT terminal. It can control current going to a load or current coming from a charger, but it cannot handle current in both directions simultaneously. Correct installation orientation is essential.
With its 220A continuous-current capacity, this model is suitable for high-current DC systems in boats, RVs, commercial vehicles, off-grid installations and backup-power systems. Its programmable voltage thresholds make it suitable for protecting a wide range of 12V and 24V battery banks.
Technical Specifications:
| Manufacturer | Victron Energy |
| Model | Smart BatteryProtect 12/24V 220A |
| Manufacturer Part Number | BPR122022000 |
| Compatible System Voltage | 12V or 24V DC; automatically detected during initial setup |
| Operating-Voltage Range | 6–35V DC |
| Maximum Continuous Load Current | 220A |
| Peak Current | 600A for up to 30 seconds |
| Default Disconnect Voltage | 10.5V for 12V systems / 21V for 24V systems |
| Default Reconnect Voltage | 12V for 12V systems / 24V for 24V systems |
| Overvoltage Load Disconnect | Above 16.3V on 12V systems / above 32.6V on 24V systems |
| Current Direction | Unidirectional, from IN to OUT |
| Switching Technology | MOSFET; no electromechanical relay |
| Wireless Communication | Built-in Bluetooth |
| Alarm Output Delay | 12 seconds |
| Maximum Alarm-Output Load | 50mA; short-circuit protected |
| Load Disconnect Delay | 90 seconds; immediate when triggered by a VE.Bus BMS |
| Load Reconnect Delay | 30 seconds |
| Current Consumption with Bluetooth On | 1.4mA while on / 0.9mA while off or after low-voltage shutdown |
| Temperature and Load Rating | Full 220A load from -40°F to 104°F; up to 132A at 122°F |
| Electronics Protection Rating | IP67, potted electronics |
| Connection Protection Rating | IP00; terminals are exposed and require appropriate installation protection |
| Power Connections | M8 |
| Recommended Mounting Torque | 9Nm |
| Dimensions (H × W × D) | 2.4 × 4.8 × 4.8in (60 × 123 × 121mm) |
| Weight | 1.8lb (0.8kg) |