The Best 12V Low Voltage Disconnect of 2023 – Reviewed and Top Rated
2,268 Reviews Scanned
- Operating Voltage: DC 6 to 18V, Rated current: 30 Amp.
- To protect electronics from damaging low voltages and prevent a deep discharge of a battery during an extended power outage, the LVD module will automatically disconnect the battery when the voltage falls below the user adjustable cutoff voltage. When power is restored the Smart Switch will automatically reconnect the battery. thereby protecting the battery from total discharge (helping to prolong the life of the battery).
- Programmable voltage setting for Disconnect and Reconnect (rocker switch set to AUTO). With emergency ON or OFF function, if you want switch output to be immediate and remain ON or OFF, you can set rocker switch to ON or OFF.
- Set rocker switch to AUTO, when the battery voltage drops to less than or equal Disconnect Value and continuously held for 5 seconds, load switch will OFF. When the battery voltage rise to greater than or equal Reconnect Value and continuously held for 5 seconds, load switch will return to ON state. this will better prevent malfunction.
- Based on Microcontroller and MOSFET (on status resistance < 0.003 ohm), more precise voltage, smart and long life switch output. Green-red dual color LED indication for output switch ON and OFF.
- DUAL PROTECTION: Still troubled by low battery life? This low voltage disconnect device, designed for 12V, 30A rated currents ystems like vehicles, solar, and alarms, acts as a dual protector between the 12V battery and the load. It not only increases battery life by three to four times but also protects the load from low voltage damage
- DUAL MODE: The device supports automatic and manual modes, intelligently controlling battery connection based on user-set voltage thresholds. It disconnects at the cutoff voltage immediately to prevent over-discharge and reconnects after a 5-second delay at the reconnect voltagefor stable power restoration, ensuring safety and extending battery life
- PRECISE ADJUSTMENT: Unlike similar products on the market that can only be set to a few fixed levels, our freely adjustable voltage thresholds can be set with precision up to 0.1V, offering true intelligent customization. This not only allows the voltage settings to best meet your specific needs but also provides more accurate voltage testing capabilities, protecting your devices and battery
- UPGRADED ALARM SYSTEM: To keep you informed of low battery voltage, the buzzer emits a slow warning alert when the voltage is within 0.5V of the disconnection threshold. After disconnection, it switches to a rapid alarm, stopping once the voltage drops by 0.3V to prevent unnecessary power consumption. Additionally, you can manually silence the alarm at any time
- INTUITIVE INFORMATION: To help you easily monitor battery and load conditions, the LED screen displays key data, including voltage, current, mute status, high-temperature alerts, short-circuit warnings, high-current alerts, and abnormal temperature sensor readings, ensuring clear and instant information at a glance
- 【Material】The quality of this battery isolator 12v is guaranteed and its long service life can bring you a good use experience. Its robust pure copper build ensures consistent operation, making it a dependable component for your vehicle's electrical system. And it is very safe and strong. Our rotary battery disconnect switch can ensure smooth current transmission, reduce power loss, and ensure stable operation of the circuit system.
- 【Features】Our switch for car features innovative adjustable terminals that can be rotated to accommodate various wiring angles and spatial constraints. This flexible design significantly simplifies the installation process, allowing for a more customized and secure fit in different vehicle engine compartments. This characteristic makes the battery isolator a practical solution for a wide array of automotive and marine applications, ensuring hassle-free setup and reliable connections.
- 【Easy To Use】This switch has two states, when the switch is raised 90°> power-off state, the switch is lowered 90°-> power-on state. Our car battery cut off switch products are simple and easy to use, saving time and effort during use will bring you a good use experience. When the battery is not in use, it can be powered off to protect the battery life. It has good corrosion resistance, can adapt to different environmental conditions, and reduce maintenance costs.
- 【Wide Applications】The battery isolator is widely used in battery systems for various types of cars, including small vehicles such as sedans and sports cars, land vehicles such as trucks and vans, and water vehicles such as yachts. By effectively preventing battery drain during periods of inactivity, this switch helps to prolong battery lifespan. Our smart car battery disconnect switch products are widely used and suitable for a variety of 12V and 24V battery systems.
- 【What You Will Get】You will receive one battery switch 12v, one wrench for easy tightening, and one shim to ensure a secure and precise fit on the battery terminal. This product is not easy to damage and can be used with confidence. If you have any questions about our product during using cotton sticks, please tell us and we will solve the problem for you as soon as possible. We sincerely hope to bring you a pleasant experience.
- Victron Energy BatteryProtect 12/24-Volt 65 amp 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
- Maximum continuous load current 65 amp and Peak current (during 30 seconds) 250 amp
- 12/24-Volt auto ranging - Victron Energy BatteryProtect automatically detects system voltage
- Victron Energy BatteryProtect can be set to engage / disengage at several different voltages, the seven segment display will indicate which setting has been chosen
- Incorrect installation can be hazardous, Please consult a licensed professional and follow all applicable electrical codes during installation
- Widely Compatible: Low voltage protector is designed to work with DC12-36V systems, including lead-acid, lithium-ion, and solar panel batteries. Please note that this is a protective switch module and does not include batteries. It is not suitable for use with battery packs
- Waterproof and Durable Design: Encased in a high-quality ABS plastic shell, this module offers excellent sealing and waterproof performance. It effectively shields the device from external elements, ensuring long-lasting durability and extended service life
- Precise Monitoring and Sensitive Control: Low voltage disconnect switch is equipped with a 3-digit LED display, it provides clear and accurate parameter readings. The module automatically disconnects the load when the battery voltage reaches the preset threshold, preventing over-discharge and safeguarding your battery health
- Setting Memory Function: This low-voltage protector features a built-in memory function that retains your settings even during power outages, eliminating the need for reconfiguration and ensuring uninterrupted operation
- Easy Installation and Setup: With two simple wiring terminals, it allows for effortless connection to both the power supply and load. The package includes a user-friendly manual, making it easy to configure and set up the low-voltage protector parameters quickly
Last update on 2025-12-05 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API
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FAQ:
Q: What is a low voltage disconnect?
A: Low Voltage Disconnects. The Low Voltage Disconnect (LVD) is a 100% solid state electronic protection module which disconnects predetermined auxiliary loads from the starting battery bank to assure enough power is left in the batteries for starting. The unit is capable of directly powering loads of up to 70A continuous draw at 85°C…
Q: What is battery cutoff voltage?
A: Cutoff voltage. In electronics, the cut-off voltage is the voltage at which a battery is considered fully discharged, beyond which further discharge could cause harm.
Q: What is a battery cut off switch?
A: This Battery Cut Off Switch is a single circuit disconnect switch with detachable key. It isolates the battery circuit for anti-theft, anti-fire, short circuit protection, and unwanted battery drain and is ideal for RV, marine and farm equipment.