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Item #:
21420236
Low Voltage Board Module 12V Battery Undervoltage Cut Off Automatic Switch On Recovery Module Prolong Battery Life
83% of respondents would recommend this to a friend
Item #:
21420236
ETB 2442
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This protection board will help you to protect battery from over-discharging and prolong battery life
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What Stands Out
Automatic Recovery
This module automatically switches on after the battery recovers from undervoltage, ensuring consistent performance without manual intervention.
Prolongs Battery Life
Designed specifically to prevent battery over-discharge, it effectively extends the lifespan of your battery, saving you money on replacements.
Low Voltage Protection
With precise undervoltage cut-off, the module protects your 12V battery from harmful low voltage levels, ensuring reliability and safety for your electronic devices.
Product Details
- Under-voltage switch module for turning off the power when voltage drops below a set value
- Automatically turns on the load when battery voltage increases to a set value
- Protects battery from over-discharging and extends battery life
- Adjustable turn-on and turn-off voltage values with potentiometer
- Features LED indicator to show load status
- Specifications: Suitable for 12V battery, voltage error of ¡À0.1V, load current of 10A, size of 5*3*1.7cm/2.0*1.2*0.7in, weight of 21g (approx.)
| Brand | TOPINCN |
| Model Number | TOPINCNsn65u2qha3 |
| UPC | 791380300056 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Unit Count | 1 Count |
| Manufacturer | TOPINCN |
| Mfr Part Number | TOPINCNsn65u2qha3 |
| Input Voltage | 12 volts |
| Output Voltage | 12 volts |
| Plug Type | Type A |
| Power Source | battery |
| Item Weight | 0.02 kg |
| Color | Blue |
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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DIY Enthusiasts
Ideal for hobbyists working on projects that require reliable battery management and protection from undervoltage.
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Renewable Energy Users
Beneficial for solar power systems to extend battery life and ensure proper voltage levels for efficient operation.
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Electric Vehicle Owners
Useful for maintaining battery health in electric vehicles by preventing over-discharge and enabling automatic recovery.
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High Power Devices
Not suitable for equipment that requires higher voltage ratings exceeding the module's capability.
Product Description
Low Voltage Board Module 12V Battery Undervoltage Cut Off Automatic Switch On Recovery Module Prolong Battery Life
About This Item
Introducing our Low Voltage Protection Board Module - the ultimate solution to prevent your 12V batteries from undervoltage and extend their lifespan. Are you tired of constantly worrying about your battery's health? Look no further! Our automatic switch-on recovery protection module is designed to cut off the power supply to your battery when it reaches a low voltage level, preventing any damage that can be done to your valuable battery. Featuring an easy installation process, this battery undervoltage cut-off module will give you peace of mind knowing that your battery is protected at all times. With its intelligent design, it ensures that your battery is only operating within a safe voltage range. This 12V battery protection module is perfect for a wide range of applications, from cars and motorcycles to RVs and boats.
It is a must-have for anyone looking to prolong the life of their batteries and avoid expensive replacements. Say goodbye to battery-related problems and hello to extended battery life with our low voltage protection board module. Don't wait until it's too late - get yours today and experience the difference it can make in your battery's lifespan.
Have any Query? Chat with us
Customer Questions & Answers
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Question:
What is a Low Voltage Board Module 12V Battery Undervoltage Cut off Automatic Switch On Recovery Module?
Answer: The Low Voltage Board Module is a protective device designed to monitor and manage the voltage levels of 12V batteries. It automatically cuts off the power to prevent the battery from discharging below a critical level. When the battery voltage rises above a certain threshold, the module automatically reconnects the power, ensuring optimal battery health. This functionality helps prolong the life of your battery by preventing deep discharges, which can lead to irreversible damage. -
Question:
How does the automatic switch-on recovery feature work?
Answer: The automatic switch-on recovery feature is designed to restore power to the battery once it has been charged above a predefined voltage level. When the battery discharges below the cutoff threshold, the module disconnects the load. Once the voltage rises back above the threshold after recharging, the module automatically reconnects the circuit. This self-regulating feature ensures your battery remains functional and optimally charged, providing reliability in systems that rely on battery storage. -
Question:
Can I use this module with different types of 12V batteries?
Answer: Yes, this module is compatible with various types of 12V batteries, including lead-acid, lithium-ion, and gel batteries. Its design accommodates the voltage characteristics and requirements of different battery chemistries. By using this module, you can effectively manage and prolong the life of any 12V battery you have, whether it's in a solar setup, an electric vehicle, or even a backup power supply. -
Question:
Why is undervoltage protection important for batteries?
Answer: Undervoltage protection safeguards batteries from excessive discharge, which can cause significant damage. When batteries are drained below specific levels, it may lead to cell degradation, reduced capacity, and shortened lifespan. By integrating a low voltage module, users can prevent deep discharges, thus ensuring that their batteries maintain optimal performance for longer. This feature is critical for applications such as RVs, solar storage, and UPS systems where battery reliability is essential. -
Question:
What are the practical applications for this module?
Answer: This module is highly versatile and ideal for various applications, including automotive systems, renewable energy setups, and emergency power backups. For instance, in solar energy systems, it helps ensure that the battery does not become over-discharged, thus maximizing solar energy harnessing. In electric vehicles, it ensures that the battery does not dip below safe levels, enhancing overall battery longevity and performance. -
Question:
Is installation of the module straightforward?
Answer: Yes, installation of the Low Voltage Board Module is generally straightforward, as it typically involves connecting the module between the battery and the load. The wiring process usually includes using clear labels for positive and negative terminals, ensuring clarity during installation. Many users find that following the provided manual or online guides makes it easy to set up, empowering them to integrate battery protection into their systems without professional assistance. -
Question:
How can I adjust the cutoff voltage on this module?
Answer: Many low voltage modules come with adjustable cutoff voltage settings. This is typically done via adjustable potentiometers on the module, allowing users to set the desired voltage threshold according to the battery specifications. By customizing the cutoff value, users can cater to the specific requirements of their batteries, ensuring optimal performance and extended life tailored to different use cases, such as high-drain applications or standby power supplies. -
Question:
What indicators or features does the module have?
Answer: Most Low Voltage Board Modules are equipped with LED indicators to provide clear status feedback. These indicators help users easily monitor the state of the battery and the operational status of the module. Features might include power-on LEDs, status lights for undervoltage cutoff, and charging indicators, allowing for intuitive operation and making troubleshooting simple should issues arise with the battery or module. -
Question:
What is the difference between an undervoltage cut-off and a standard switch?
Answer: An undervoltage cut-off module specifically monitors battery voltage to prevent discharge below safe levels, whereas a standard switch merely opens or closes a circuit on command without such monitoring. This module adds a layer of automatic protection and recovery, making it essential for applications where preserving battery health is critical. This added functionality helps in maintaining performance and longevity, something a standard switch does not offer. -
Question:
Where can I buy a Low Voltage Board Module 12V Battery Undervoltage Cut off Automatic Switch On Recovery Module in Ethiopia?
Answer: You can purchase the Low Voltage Board Module 12V Battery Undervoltage Cut off Automatic Switch On Recovery Module from Ubuy in Ethiopia. Ubuy offers a wide selection of electronic components, ensuring that you can find the exact module you need to enhance your battery management systems.
TOPINCN Power Converters TOPINCNsn65u2qha3 Editorial Review
This Low Voltage Protection Board Module is designed to prolong battery life by cutting off power at undervoltage and switching on recovery protection once the battery reaches a set voltage level. However, the device has received mixed reviews from customers. Some report issues with the LM393 comparator and relay noise, while others have experienced problems with unreliable relay connections or high power Consumption. One reviewer also notes that the threshold control has poor filtering and the relay can't make up its mind whether to be on or off. It seems that the Low Voltage Protection Board Module is not recommended for circuits that need to be continuously powered or for batteries with a capacity of less than 5AH.
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Pros
- Prolongs battery life by cutting off power at undervoltage
- Switches on recovery protection once the battery reaches a set voltage level
- Adjustable threshold control
Cons
- Unreliable relay connections
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Jasmin
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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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8 September 2026 · via Trustpilot
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ETB 2442
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Features & Benefits
- Protects battery from over-discharging
- Promotes battery longevity
- Under-voltage switch module
- Undervoltage recovery
- Adjustable turn-on/off voltage
- LED indicator for load status
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