Victron Energy BatteryProtect BP-220 220 Amp Battery Disconnector for 6-35 VDC Systems

BatteryProtect BP-220 - 220AMP - 6-35 VDC

Features:

• The 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.


• 12/24V auto ranging The BatteryProtect automatically detects system voltage


• Programming made easy The BatteryProtect can be set to engage / disengage at several different voltages. The seven segment display will indicate which setting has been chosen.


• 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 16V respectively 32V.


• 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 alarm has been activated. 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.

Warranty Info

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

The Victron Energy BatteryProtect BP-220 is a high-performance battery disconnect device designed to safeguard your battery and electrical system. This 220-amp unit automatically disconnects non-essential loads before the battery is fully discharged, preventing damage and ensuring reliable engine start-up. It features an automatic detection system for 12V and 24V DC systems, providing versatile compatibility across various vehicle and marine applications. The intuitive programming interface, including a seven-segment display, allows easy adjustment of engagement and disengagement voltages to suit different battery chemistries and operational preferences.

Specially designed for Li-ion batteries, the BatteryProtect can be controlled via the VE.Bus BMS, making it suitable for modern energy storage solutions. It can also serve as a charge interrupter between a charger and Li-ion batteries, with connection diagrams available in the manual for proper setup. The device boasts ultra-low current consumption, which is especially critical after low voltage shutdowns in Li-ion systems, helping to preserve battery life. Over-voltage protection is integrated to disconnect loads when voltage exceeds 16V or 32V, preventing damage to sensitive equipment.

Built without relays and utilizing MOSFET switches, the BatteryProtect is ignition-proof and eliminates sparks, enhancing safety and durability. It features a delayed alarm output that activates if voltage drops below preset levels for more than 12 seconds, allowing for alert notifications without false alarms during engine startups. The delayed load disconnect occurs 90 seconds after alarm activation, with automatic reconnection 30 seconds after voltage recovery, providing a seamless and safe user experience. This robust device is ideal for marine, RV, and off-grid systems demanding reliable battery management and protection.

Features:

• Disconnects non-essential loads before complete battery discharge to protect battery health

• Automatically detects 12V and 24V DC systems for versatile application

• Simple programming with a seven-segment display to set engagement/disengagement voltages

• Compatible with Li-ion batteries and controllable via VE.Bus BMS for advanced energy systems

• Ultra-low current draw minimizes battery drain during low voltage conditions

• Over-voltage protection disconnects loads above 16V or 32V to prevent damage

• Ignition-proof design with MOSFET switches eliminates sparks and enhances safety

• Delayed alarm output activates if voltage remains low for over 12 seconds, with load disconnect delayed by 90 seconds and reconnect after 30 seconds