Battery Protect 12/24V 65A

The Victron Energy Battery Protect 12/24V 65A is a device designed to protect your batteries from excessive discharge. It disconnects non-essential loads before the battery is fully drained, which could damage it or leave insufficient power to start the engine. It can also function as a charging switch to protect against overvoltage.

The Battery Protect monitors your battery voltage and automatically disconnects non-essential loads if the voltage drops below a predefined threshold. This ensures there is always enough power for critical functions like engine starting, thereby extending your battery's lifespan.

The Battery Protect has an ultra-low current draw. In operation, it consumes about 1.5 mA. When turned off or in low-voltage cutoff mode, its draw is even lower at just 0.6 mA. This low draw is particularly important for Li-ion battery systems.

Yes, the Battery Protect includes overvoltage protection. To prevent damage to sensitive loads, it automatically disconnects the load if the DC voltage exceeds 16V for a 12V system, or 32V for a 24V system.

The Battery Protect 65A can handle a maximum continuous charging current of 65 amperes. It can also withstand a peak current of up to 250 amperes for a duration of 30 seconds.

Yes, the Battery Protect electronics are encapsulated and have an IP67 rating, making them resistant to dust and temporary immersion in water. The connections, however, are rated IP00. It can operate at full load within a temperature range of -40°C to +40°C, and up to 60% of its nominal load at 50°C.

The Battery Protect has an alarm output that activates if battery voltage drops below the predefined disconnect level for more than 12 seconds. This prevents false alarms during engine start-up. Load disconnection is then delayed by 90 seconds after alarm activation, allowing time for intervention if necessary.

The 7-segment LED display on the Battery Protect makes programming straightforward. It clearly shows the selected voltage setting for load engagement and disengagement, making configuration quick and intuitive.

Yes, the Battery Protect is designed to be ignition-resistant. It uses MOSFET switches instead of relays, meaning it does not produce sparks during operation, thereby increasing safety on board.

The Battery Protect 65A has compact dimensions of 40 mm (height) x 48 mm (width) x 106 mm (depth) and weighs approximately 0.2 kg.

The Battery Protect must be installed in a well-ventilated location, preferably near the battery (maximum 50 cm away), but not directly above it to avoid contact with any corrosive gases. Ensure you choose a spot that allows for good air circulation.

The 1.5 mm² ground cable supplied with the Battery Protect must be connected directly to the negative terminal of the battery or to the vehicle chassis. It is important that no other equipment is connected to this wire. This ground cable must be protected by a 300 mA fuse.

Yes, it is imperative to insert a properly sized fuse, compliant with local regulations, in the cable between the battery's positive terminal and the Battery Protect. This provides additional protection for your system.

The Battery Protect is easily programmed using the "PROG pin to GND pin" method. The 7-segment LED display guides you by showing the selected setting. The device automatically detects the system voltage (12V or 24V) only once during the first power-up, but this detection can be reset if you reuse the Battery Protect in a different installation.

Yes, a remote on/off switch can be connected between the two pins of the 2-pin remote terminal. Alternatively, the terminal labeled "REMOTE" can be switched to a high level (toward the battery positive) to activate the system. This allows remote control of the Battery Protect.

The Battery Protect is a unidirectional device. It is designed so that current flows only from the "IN" terminal (battery) to the "OUT" terminal (load). Reverse currents, from "OUT" to "IN", are strictly prohibited and may damage the device. Ensure this orientation is respected during installation.

Yes, the Battery Protect automatically detects the system voltage (12V or 24V) when first powered on. It then adapts to operate correctly with the identified voltage, making it versatile for different installations.

Yes, the Battery Protect has a dedicated setting for Li-ion batteries. In this mode, it can be controlled by an external battery management system (BMS), such as the VE.Bus BMS, via its "REMOTE" terminal. It can also be used as a charge switch between a battery charger and a Li-ion battery.

In Li-ion mode, the Battery Protect can be controlled by an external BMS (e.g., a Victron Lynx Smart BMS) via its remote terminal. If the BMS charge disconnect output (ATD) is connected to the "REMOTE" pin and the signal goes floating, the charge is immediately disconnected without delay. The undervoltage thresholds and alarm output of the Battery Protect are inactive in this mode.

No, it is strictly forbidden to connect inverters or inverter-chargers directly to the Battery Protect’s DC inputs. Reverse current could flow and damage the device. If you wish to control such equipment, you must use the Battery Protect to control the remote port of the inverter or inverter-charger.