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Item #:
39386556
Undervoltage Board, 12V Battery Charging Undervoltage Automatically Cut Off Switch Battery Board
76% of respondents would recommend this to a friend
Item #:
39386556
BND 27
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When the line voltage drops to the threshold voltage, the module that protects the electrical appliance is called the undervoltage module, and its task is mainly to prevent the equipment from being burnt due to overload.
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What Stands Out
Automatic Cut Off
Prevents battery damage by automatically disconnecting power when undervoltage is detected, ensuring longevity and efficient use of 12V batteries.
User-Friendly Design
Easy to install and operate, simplifying battery management for users at all experience levels, making it ideal for DIY enthusiasts and professionals alike.
Safety Protection
Incorporates multiple safety features to protect against over-discharge, enhancing battery performance and providing peace of mind during charging.
Product Details
- Automatically cuts off load power when voltage drops below set value
- Designed with LED indicator to show load status
- Allows adjustment of turn-off and turn-on voltage values
- Suitable for 12V battery charging protection
- Helps save power and prolong battery life
- Not suitable for high voltage circuits and lacks overvoltage protection
| Connector Type | Through Hole |
| Contact Type | Normally Open |
| Current Rating | 10 A |
| Mounting Type | PCB Mount |
| Operation Mode | Automatically,Electrical |
| Wattage | 12 watts |
| Coil Voltage | 12 volts |
| Contact Current Rating | 10 A |
| Maximum Switching Current | 10 A |
| Maximum Switching Voltage | 12 volts |
| Minimum Switching Voltage | 12 volts |
| Number of Terminals | 3 |
| Brand Name | Yanmis |
| UPC | 749249368945 |
| Manufacturer | Yanmis |
| Part Number | Yanmisrg712nvite |
| Contact Material | Silver Alloy |
| Item Weight | 0.5 lbs (230 grams) |
Dangerous Goods
To avoid the delay in customs clearance process for Dangerous Goods, the shipment shall be opened at our warehouse facility to check the severity of hazardous components. Please see the list of Dangerous goods here.
Who Should Buy?
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Battery Users
Ideal for users needing an automatic cut-off to prevent battery damage from undervoltage situations.
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DIY Enthusiasts
Perfect for hobbyists who build their own battery management systems and require reliable undervoltage protection.
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Solar Installers
Beneficial for solar power systems ensuring batteries are not over-discharged, improving lifespan and efficiency.
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Advanced Technicians
Not suitable for expert users who prefer manual control over their battery charging and management processes.
Product Description
Undervoltage Board, 12V Battery Charging Undervoltage Automatically Cut Off Switch Battery Board
About This Item
Introducing our Undervoltage Protection Board for your 12V battery charging needs. This cutting-edge module is designed to automatically cut off the power to your load when the voltage drops below a set value, effectively protecting and prolonging the life of your battery. With its intelligent design, this board will connect to the charger automatically to replenish the battery and ensure it reaches optimal levels.
Once the battery voltage increases to the desired value, the module will seamlessly turn on the load again and stop charging the battery. Featuring a convenient LED indicator, you can easily determine if the load is turned off or turned on, providing you with clear visibility. Plus, you have full control with adjustable turn-off and turn-on voltage values, making it simple to customize according to your specific requirements. This versatile control board is perfect for battery charging systems and circuits.
It offers a load current of 10A, making it suitable for a wide range of applications. Its compact size of 6*3*1.8cm allows for easy installation and integration into your existing setup. Built with quality and reliability in mind, this protection board is a must-have for anyone looking to protect their battery and optimize energy efficiency.
You no longer have to worry about overcharging or excessive discharging, as this board will take care of it all. Don't let voltage fluctuations ruin your battery life. Invest in our Undervoltage Protection Board today and enjoy peace of mind knowing that your battery is well-protected and efficiently charged.
Take control of your battery charging system with our innovative module. Order now and experience the difference. Package Includes: 1 x Undervoltage Protection Board Keywords: 12V battery charging, battery protection board, undervoltage protection board, battery charging system, battery charging circuit, battery charging controller, battery charging module, battery charging solution, battery charging techniques, battery charging methods, battery charging tips, battery protection system, battery protection circuit, battery protection controller, battery protection module, battery protection solution, battery protection techniques, battery protection methods, battery protection tips, undervoltage protection system, undervoltage protection circuit, undervoltage protection controller, undervoltage protection module, undervoltage protection solution, undervoltage protection techniques, undervoltage protection methods, undervoltage protection tips.
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Customer Questions & Answers
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Question:
What is an Undervoltage Board?
Answer: An Undervoltage Board is a circuit module designed to protect batteries from discharging below a critical voltage level. It automatically cuts off the battery when the voltage falls below a set point, preventing damage from over-discharge. This is particularly essential for lead-acid and lithium batteries, which can have a significantly reduced lifespan if deeply discharged. By using an undervoltage board, you can ensure the longevity and reliability of your power source, making it ideal for applications like solar energy systems, RVs, and emergency backups. -
Question:
How does a 12V Battery Charging Undervoltage Board work?
Answer: A 12V Battery Charging Undervoltage Board detects the battery voltage during charge cycles. If it senses that the voltage falls below its predetermined threshold, the board interrupts the connection, effectively cutting off the battery to prevent harmful discharges. This mechanism allows the battery to maintain its health while being used in various setups such as solar panel systems or battery banks. This functionality provides peace of mind for users who rely on a stable and efficient power supply for their devices. -
Question:
What are the benefits of using a Battery Cut Off Switch?
Answer: Using a Battery Cut Off Switch can significantly enhance battery life and efficiency by preventing deep discharge conditions. This switch is particularly beneficial for applications where batteries are frequently drained, such as in off-grid systems and recreational vehicles. The cut off mechanism preserves the battery's capacity and ensures that your power source is always ready when needed. Additionally, it can protect against potential fire hazards caused by over-discharging or short-circuits, making it a smart investment for battery-powered setups. -
Question:
Can I use the Undervoltage Board with different types of batteries?
Answer: Yes, the Undervoltage Board is compatible with various battery types, including lead-acid, lithium-ion, and gel batteries. However, it's crucial to set the appropriate voltage cut-off level based on the specifications of the battery type in use. For instance, lead-acid batteries typically require a higher cut-off voltage compared to lithium batteries. Proper configuration allows for optimal performance and extends your battery's operational lifespan, which is critical for applications in remote power solutions, electric vehicles, and portable energy storage. -
Question:
Is installation of the Undervoltage Board complicated?
Answer: The installation process for an Undervoltage Board is typically straightforward, requiring basic electrical knowledge and tools. Most boards come with detailed wiring diagrams to guide users through the setup. It usually involves connecting the board in line with the battery and load, ensuring polarity is observed. Proper installation is crucial to ensure effective operation, especially in systems like solar power setups or standalone battery banks. Many users find that they can accomplish the task with minimal assistance, making it a popular addition to DIY energy projects. -
Question:
How can I adjust the undervoltage cut-off point?
Answer: Adjusting the undervoltage cut-off point often requires a simple adjustment screw or a programmable setting on the Undervoltage Board, depending on its design. Users can refer to the user manual for specific instructions on making these adjustments. It’s essential to set the cut-off voltage according to the recommendations for the particular battery type to avoid performance issues. Users frequently adjust these settings for specialized applications, ensuring optimal performance and longevity in systems like electric bikes, solar energy storage, and more. -
Question:
What scenarios benefit the most from using an Undervoltage Board?
Answer: Scenarios that benefit greatly from using an Undervoltage Board include solar panel systems, RV power setups, and any battery-operated devices that don't have inherent discharge protection. For example, in a solar energy project, incorporating this board helps prevent the batteries from draining too low during periods of low sunlight, thereby ensuring reliability. Similarly, for RVs, it ensures that the starting battery remains charged and healthy, ready for travel. Users in these scenarios often report improved battery life and better overall system performance. -
Question:
What features should I look for in an Undervoltage Board?
Answer: When selecting an Undervoltage Board, look for features such as adjustable cut-off voltage, current rating, and protection against short circuits. Additional functionalities like status indicators, ease of installation, and compatibility with various battery types can also enhance usability. These features will ensure that the board meets your specific requirements, providing reliable protection for your batteries in systems like electric scooters, marine applications, or stand-alone energy storage systems, thus giving you confidence in your investment. -
Question:
Where can I buy Undervoltage Board, 12V Battery Charging Undervoltage Automatically Cut Off Switch Battery Board?
Answer: You can purchase the Undervoltage Board, 12V Battery Charging Undervoltage Automatically Cut Off Switch Battery Board from Ubuy. They offer a variety of electronics and accessories, making it a convenient option for finding the right board for your application. Ubuy provides detailed product descriptions, customer reviews, and efficient customer support to assist you in making the right choice for your battery management needs. -
Question:
Are there any safety precautions I need to consider while using this board?
Answer: Yes, it’s important to observe safety precautions, such as ensuring correct voltage ratings, avoiding over-current conditions, and maintaining proper ventilation. Users should also be cautious about the environment where the batteries are used, keeping them dry and away from extreme temperatures. Additionally, thorough checks on connections and the configuration of the Undervoltage Board are essential to prevent malfunctions. Following these precautions can significantly reduce the risk of accidents in battery-powered setups, ensuring safer and more reliable operations across various applications.
Yanmis Relay Control Module Editorial Review
The Undervoltage Board designed for 12V battery charging has received mixed feedback from users. Many customers appreciate its functionality in preventing battery drainage by automatically cutting off power when the voltage drops below a certain threshold. This feature is particularly useful for those using batteries to power low-wattage devices, such as lights powered by solar panels, ensuring the longevity of the battery and protection against damage. However, several users have encountered issues with the setup and the reliability of certain features. Users have reported difficulties when trying to connect the board to their chargers, with some stating it failed to charge the battery as intended. The necessity of a budget for proper calibration using a DC variable voltage supply and meter has been noted, which might not be ideal for all users. Additionally, the "force start" feature, meant to manually reconnect the battery under certain conditions, has been highlighted as non-functional by some customers, detracting from the product's overall appeal. While the cutoff function seems to operate effectively for many, the inability to set a reconnection voltage has led some users to seek alternative solutions with simpler designs that do not include unnecessary input ports. Ultimately, while the product serves a crucial purpose for protecting batteries, its inConsistent reliability and setup challenges may lead some users to Consider other options. **
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Pros
- Effective in preventing battery drainage.
- Automatic cut-off feature works well for maintaining battery health.
- Beneficial for low-wattage devices powered by solar energy.
Cons
- Difficulty in setting up and calibrating the device.
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“Great products and very good service: very easy and very fast international delivery.”
9 September 2026 · via Trustpilot
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“Easy to find and order what you want on the website. Delivery is quick to the UK”
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BND 27
Order now and get it around Saturday, October 17
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
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Features & Benefits
- Automatically turns off power when voltage drops below set value
- Connects to charger for storage battery
- LED indicator shows load status
- Adjustable turn-off and turn-on voltage values
- Saves power and prolongs battery life
- Suitable for 12V battery charging
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