Victron Energy BatteryProtect BP-65 65 Amp Battery Management System for 6-35 VDC Systems

BatteryProtect BP-65 - 65AMP - 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-65 is a high-performance battery management device designed to safeguard your battery bank by disconnecting non-essential loads before the battery is critically discharged, preventing damage and ensuring reliable engine starts. Suitable for 6 to 35 volts DC systems, this device features auto-ranging for 12 and 24V systems, allowing seamless integration into various electrical setups. Its easy-to-read seven-segment display provides clear indication of programming modes, which include multiple voltage settings for engagement and disengagement, offering customizable protection tailored to your battery's needs. The BP-65 includes a special mode for Li-ion batteries, allowing control via VE.Bus BMS, and can also function as a charge interrupter between a charger and Li-ion batteries, making it versatile for different energy storage configurations. Its ultra-low current consumption is especially beneficial for Li-ion batteries, reducing parasitic drain during low voltage shutdown, while over-voltage protection safeguards sensitive loads from voltage spikes exceeding 16V or 32V. The absence of relays and reliance on MOSFET switches eliminate sparks, providing ignition-proof operation in demanding environments. Additionally, the device offers a delayed alarm output that activates if the voltage remains below the threshold for over 12 seconds, preventing false alarms during transient voltage dips. The delayed load disconnect and reconnect features ensure the system maintains operational stability, disconnecting loads 90 seconds after alarm activation and reconnecting 30 seconds after voltage recovery, such as after engine start. Built with reliability and safety in mind, the Victron BatteryProtect BP-65 is an essential component for maintaining battery health and preventing damage in marine, RV, or off-grid applications. For more details, warranty information, and safety warnings, please refer to the provided links and product documentation.

Features:

• Disconnects non-essential loads before complete battery discharge to prevent damage or engine failure

• Auto-ranging for 12V and 24V systems for versatile application

• Intuitive programming with a seven-segment display for multiple voltage settings

• Special mode for Li-ion batteries, controllable via VE.Bus BMS

• Can be used as a charge interrupter between charger and Li-ion battery

• Ultra-low current consumption ideal for Li-ion batteries, especially after low voltage shutdown

• Over-voltage protection to prevent damage from voltage spikes

• Ignition-proof design using MOSFET switches, eliminating sparks

• Delayed alarm output activates if voltage remains below threshold for over 12 seconds

• Delayed load disconnection after alarm activation, reconnecting after voltage recovery to maintain system stability