VICTRON ENERGY Battery Protect 12/24V 100A

Battery Protect 12/24V 100A - Victron Energy

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Victron Energy

BPR000100400

Battery Protect 12/24V 100A

Designed for 12V and 24V systems, the Victron Energy Battery Protect 12/24V 100A (BPR000100400) effectively protects batteries against deep discharge and overvoltage with a 100A capacity. It automatically detects voltage and offers easy programming, including a specific mode for Li-ion batteries. This model is positioned as a reliable and cost-effective solution for medium-power installations, and comes with a pre-assembled DC ground connector and cable.

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$53.00 USD

$53.00 USD ~~$68.00 USD~~

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Free pickup point from €150 in France
Pickup at Skysat possible

Custom installation

Trust Skysat to install the equipment on board

Request a quote

Installers near you

thanks to our network of approved installers

Find an installer

Support service

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Technical specifications

Product use	Battery protection against excessive discharge and overvoltage, charge switch
Switch type	MOSFET
Courant continu (A)	100A
Courant intermittent (A)	600A (30 seconds)
Courant de démarrage (A)	600A (30 seconds)
Maximale tension dc	35V
Nombre de pôles	Single-pole
Positions	Automatic ON/OFF
Type de borne	Bolt
Terminal size	M8
Type de connexion câblage	M8 bolt
Type de contrôle	7-segment LED display, PROG pin, remote control
Mounting type	Surface mount
IP rating	IP67 (electronics), IP00 (connections)
Operating voltage range	6-35V
Operating temperature range	-40°F to +104°F (full load)
Housing material	Plastic
Weight	0.535 kg
Dimensions (W x H x D)	42 x 59 x 115 mm
Courant maximal de la sortie d'alarme	50
Automatic System Voltage Detection	Yes
Integrated battery monitoring	Oui
Battery technology	Lead-acid, Lithium-ion
Bms Compatibility	VE.Bus BMS, Lynx Smart BMS
Current Consumption Off Mode Ma	0.6
Current Consumption On Mode Ma	1.5
Current Flow Direction	Unidirectional (IN to OUT)
Default Engage Voltage 12v	12
Default Engage Voltage 24v	24
Display type	7-segment LED
Fusible required	Yes
Protection anti-déflagrante	Yes
Installation Location General	Well-ventilated area, near the battery (max 50 cm)
Low Voltage Alarm Delay Seconds	12
Max charge current (A)	100.0
Max discharge current (A)	100.0
Mounting orientation	Flexible
Mounting Torque Nm	9
Catégorie Odoo	Merchandise / GENHY / 38
Peak discharge current	600.0
Product SKU	BPR000100400
Product type	Battery Protect
Recommended continuous discharge current	100.0
Remote on/off support	Yes
Short-circuit protection	Yes
Storage temperature range	-40°F to +104°F
Wired network	None

Detailed description

Designed for battery protection, the Victron Energy Battery Protect 12/24V 100A is an essential load-disconnect device for embedded systems. This Battery Protect automatically disconnects non-essential loads before the battery is fully discharged, preventing irreversible damage or insufficient power to start the engine. It can also serve as a charge switch to protect sensitive equipment from overvoltage, disconnecting the load if DC voltage exceeds 16V or 32V.

Technical Features and Performance

The Battery Protect 12/24V 100A automatically detects system voltage (12V or 24V) and offers simplified programming via a 7-segment LED display that indicates the selected setting. Current consumption is ultra-low, at just 1.5 mA in operation and 0.6 mA in standby or low-voltage cutoff mode, which is particularly relevant for Li-ion batteries. The device features flame-retardant protection via MOSFET switches, eliminating any risk of sparks. A special setting is available for Li-ion batteries, allowing direct control by an external BMS such as the VE.Bus BMS, and it can also be used as a charge switch between a battery charger and a Li-ion battery.

Alarm and Disconnection Management

This Victron Energy device includes a timed alarm output that activates if battery voltage drops below the pre-set disconnect level for more than 12 seconds, preventing false alarms caused by engine start. Load disconnection is also timed at 90 seconds after alarm activation (immediate if triggered by the VE.Bus BMS), while reconnection occurs 30 seconds after battery voltage returns to the reconnection threshold. Default thresholds are 10.5V or 21V for disconnection and 12V or 24V for engagement. The electronics are rated IP67 (encapsulated in resin) for enhanced protection, and the device can operate at full load between -40°C and +40°C.

Positioning in the Victron Energy Range

The Battery Protect BP-100 (100A) is positioned as an intermediate solution within the Victron Energy BatteryProtect series, offering a higher continuous current capacity than the BP-65 (65A) and suitable for a wide range of applications, without reaching the power of the BP-220 (220A). Unlike the Smart BatteryProtect, which offers Bluetooth connectivity, this model relies on programming via the "PROG pin to GND pin" method, providing a reliable alternative for installations where simplicity of configuration and robustness are prioritized over advanced communication features. It is critical to note that the Battery Protect is a unidirectional device, designed to manage current from the IN terminal (battery) to the OUT terminal (load) only, and is not suitable for reverse currents from direct charging sources. For inverters or charger/inverters, it must be used to control their remote port and not directly inline in the DC circuit.

Expert opinion

Pol CONIN

Digital Manager

« Technical analysis: Victron Battery Protect 100A, an essential battery guard »

The Victron Energy Battery Protect 12/24V 100A is a critical component for onboard energy management, particularly on sailboats and powerboats equipped with auxiliary systems. Its primary role is to extend battery life by preventing harmful deep discharges while ensuring sufficient power reserve for engine starting or other critical functions. It is especially relevant for installations where secondary loads (refrigeration, lighting, non-essential navigation electronics) could accidentally drain the service battery.

Installation is straightforward: the Battery Protect is placed between the battery and the loads to be protected. It is critical to respect its unidirectional nature (IN to OUT); any attempt to use it for bidirectional current flows, such as with certain chargers or inverters, could damage it. For inverters, it must be connected to their remote control input rather than wired directly into the DC circuit. Connecting the ground (GND) directly to the battery’s negative terminal is an important wiring precaution to ensure stable operation.

This model, the BP-100, offers a continuous 100A capacity, making it suitable for medium-sized installations where a BP-65 would be underpowered and a BP-220 oversized and more expensive. Compared to the Smart version, this classic Battery Protect differs by its pin-programming method, which makes it simpler for fixed installations that do not require Bluetooth interface or advanced monitoring via VE.Direct. It is a robust and economical choice for reliable protection, particularly when paired with an external BMS for Li-ion batteries. It is not designed for applications requiring bidirectional current control or advanced system integration with smart features without an external BMS.

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Battery Protect 12/24V 100A

$53.00 USD

$53.00 USD ~~$68.00 USD~~

Frequently Asked Questions

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What is the Victron Energy Battery Protect 12/24V 100A used for?

The Battery Protect 12/24V 100A is a load disconnection device designed to protect your battery. It automatically disconnects non-essential loads before the battery is fully discharged, preventing irreversible damage to the battery or ensuring enough power remains to start the engine. It can also function as a charge switch to protect sensitive equipment from overvoltage.

Does the Battery Protect automatically detect the system voltage (12V or 24V)?

Yes, the Battery Protect 12/24V 100A automatically detects the system voltage (12V or 24V) at first power-up. Once the voltage is detected and stored, automatic detection is disabled. If you reuse the device in a different installation, you can reset this setting.

What is the current consumption of the Battery Protect?

The Battery Protect has an ultra-low current consumption. It draws only 1.5 mA when operating (when "on") and 0.6 mA in stop mode or during a low-voltage cutoff. This low consumption is particularly beneficial for Li-ion batteries.

Does the Battery Protect provide overvoltage protection?

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

How does the Battery Protect handle low-voltage alarms?

The Battery Protect features a timed alarm output. This alarm activates if the battery voltage drops below the pre-set disconnection level for more than 12 seconds. This prevents false alarms caused, for example, by engine start-up. The alarm output is an open-collector output resistant to short-circuits to the negative rail, with a maximum current of 50 mA, and is typically used to trigger an audible alarm, an LED, or a relay.

What are the default disconnection and reconnection thresholds for the Battery Protect?

Default thresholds for Battery Protect are as follows:

Disengage: 10.5V for a 12V system or 21V for a 24V system.
Engage: 12V for a 12V system or 24V for a 24V system.
These thresholds can be programmed to your requirements.

What is the maximum continuous DC current that the Battery Protect 100A can handle?

The Battery Protect 12/24V 100A can handle a maximum continuous charging current of 100 amperes. It can also withstand a peak current of 600 amperes for 30 seconds.

Is the Battery Protect spark-resistant?

Yes, the Battery Protect is spark-resistant ("ignition proof"). It uses MOSFET switches instead of relays, eliminating any risk of sparks during switching.

Can the Battery Protect be used as a remote on/off switch?

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 pulled high (to the battery positive) to activate the device.

What is the operating temperature range of the Battery Protect?

The Battery Protect can operate at full load within a temperature range from -40°C to +40°C. It can handle up to 60% of the nominal load at 50°C.

Where should I install the Battery Protect?

The Battery Protect must be installed in a well-ventilated area, preferably near the battery (maximum 50 cm away), but not directly above it due to possible corrosive gases. It is important to select the correct cable size and length to match the load in order to avoid voltage drops.

How to connect the ground (GND) cable of the Battery Protect?

The 1.5mm² ground cable supplied must be connected directly to the negative terminal of the battery (or to the chassis of a vehicle). No other equipment must be connected to this wire. It is recommended to protect this GND cable with a 300mA fuse.

Is the Battery Protect unidirectional or bidirectional?

The Battery Protect is a unidirectional device. It is designed to allow current to flow only from the IN terminals (battery) to the OUT terminals (load). Reverse currents from OUT to IN are strictly prohibited and will damage the device. If used as a disconnect for a charging source, it must be oriented so that current flows in the intended direction, from IN to OUT.

Should a fuse be installed with the Battery Protect?

Yes, a fuse of the appropriate size must be inserted, in accordance with local regulations, in the cable between the battery and the Battery Protect to ensure adequate protection of the installation.

What is the recommended torque for the connections on the Battery Protect 100A?

The recommended tightening torque for Battery Protect 100A connections is 9 Nm. Connections are M8 type.

Is the Battery Protect compatible with lithium (Li-ion) batteries?

Yes, the Battery Protect is compatible with Li-ion batteries and has a dedicated setting for them. In this mode, it can be controlled by an external BMS, such as the VE.Bus BMS or the Lynx Smart BMS, to disconnect the load when required.

Can I connect an inverter or a charger-inverter directly to the Battery Protect's DC inputs?

No, it is strictly forbidden to connect inverters or charger-inverters directly to the Battery Protect’s DC inputs. Reverse current could flow and damage the device. To control an inverter or charger-inverter, you must use the Battery Protect to control its remote port.

Can the Battery Protect be used to protect a battery during charging?

Yes, the Battery Protect can also be used as a charging switch between a battery charger and a Li-ion battery. It can thus protect the battery from overvoltage by disconnecting the charge if the DC voltage exceeds the safety thresholds (16V or 32V).

Is the Battery Protect compatible with all Li-ion battery BMS systems?

The Battery Protect can be controlled by an external BMS, such as the VE.Bus BMS or the Lynx Smart BMS, via its remote terminal when programmed in Li-ion mode. If your lithium battery has an internal BMS (so-called "drop-in") without an output to control loads or chargers, the Battery Protect must be programmed in a standard mode (A or B), not in Li-ion mode (mode C).