Onyehn
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2pcs 12V-36V DC Voltage Protection Module Over Discharge Protection
2pcs 12V-36V DC Voltage Protection Module Over Discharge Protection
2pcs 12V-36V DC Voltage Protection Module Over Discharge Protection
2pcs 12V-36V DC Voltage Protection Module Over Discharge Protection
2pcs 12V-36V DC Voltage Protection Module Over Discharge Protection
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2pcs 12V-36V DC Voltage Protection Module Over Discharge Protection
2pcs 12V-36V DC Voltage Protection Module Over Discharge Protection
2pcs 12V-36V DC Voltage Protection Module Over Discharge Protection
2pcs 12V-36V DC Voltage Protection Module Over Discharge Protection
2pcs 12V-36V DC Voltage Protection Module Over Discharge Protection
Programmable battery low voltage disconnect switch for DC12-36V lead acid battery and lithium ion battery. It's a protection switch module, not included batteries itself.
2pcs 12V-36V DC Voltage Protection Module Over Discharge Protection
Item #: 21420257

2pcs 12V-36V DC Voltage Protection Module Over Discharge Protection

90% of respondents would recommend this to a friend

Item #: 21420257

BWP 303

Price Details

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*All items will import from US

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Order now and get it around Sunday, September 27
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Programmable battery low voltage disconnect switch for DC12-36V lead acid battery and lithium ion battery. It's a protection switch module, not included batteries itself.
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Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.

What Stands Out

Voltage Range
Accommodates a broad voltage range of 12V to 36V, making it versatile for various applications, ensuring compatibility with multiple devices and reducing the need for multiple purchase options.
Digital Display
Equipped with a digital display for real-time voltage monitoring, enhancing user awareness and control over power usage, thereby preventing battery damage and improving the lifespan of connected devices.
Over Discharge Protection
Provides reliable over discharge protection, which automatically disconnects power during low voltage scenarios, safeguarding batteries from irreversible damage and ensuring long-term functionality and reliability.

Product Details

Shop 2pcs 12V-36V DC Voltage Protection Module Over Discharge Protection online at a best price in Botswana. B07QNXM4LS
  • Programmable low voltage disconnect switch for DC12-36V lead acid and lithium ion batteries
  • Compatible with lead acid, lithium ion, and solar panel batteries (not suitable for battery packs)
  • Relay does not include a power cut-off switch, so power supply must be manually disconnected after module activation
  • Compact size with thin circuit lines - current should not exceed 8A during use to prevent relay damage
  • Package includes 2 protection modules
  • Instructions provided for setting discharge voltage for new and old batteries, and for slow charging
Brand NameOnyehn
Unit Count2 Count
Number of Packs2
ManufacturerOnyehn
Number of Items2
Included Components2x Protection Module
ModelXH-M609
Part NumberXH-M609
Colorblack,gray
Material TypeLead
Display TypeLED
Item Dimensions L x W x H2.24"L x 1.65"W x 0.75"H (5.7 x 4.2 x 1.9 cm)
Item Weight0.06 kg
BrandOnyehn
Product Dimensions (L x W x H)2.24"L x 1.65"W x 0.75"H (5.7 x 4.2 x 1.9 cm)
MaterialLead

What's in the box

2x Protection Module

Who Should Buy?

Suitable For
  • Battery Safety

    Ideal for users needing to protect batteries from over-discharge in solar or automotive applications.

  • DIY Projects

    Perfect for hobbyists and makers who require a reliable low voltage protection for custom electronic projects.

  • Power Management

    Beneficial for those managing multiple power sources to prevent damage from voltage drops and discharges.

Not Suitable For
  • High Voltage Systems

    Unsuitable for users working with systems above 36V, which may lead to equipment failure.

Product Description

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What is the purpose of a DC Voltage Protection Module?

    Answer: The DC Voltage Protection Module is designed to protect your devices from low voltage situations that could cause damage. It constantly monitors the voltage levels, and once they dip below the preset threshold, the module automatically disconnects the load. This is crucial for maintaining the longevity of batteries, especially in solar power systems or electric vehicles, where over-discharge can lead to battery failure.
  • Question: What voltage range does this module support?

    Answer: This module supports a voltage range of 12V to 36V, making it versatile for various DC applications. Whether you're working with standard automotive batteries or other DC sources, this module can effectively prevent over-discharge, ensuring consistent performance across a wide array of devices.
  • Question: How does the digital display benefit users?

    Answer: The digital display allows users to easily monitor the voltage levels in real-time, enabling proactive management of power systems. By providing clear visual feedback, it helps in identifying potential issues before they escalate. This feature is particularly useful for DIY enthusiasts and professionals who need to keep a close eye on battery health during projects.
  • Question: Can I use this module for solar panel applications?

    Answer: Yes, this module is perfect for solar panel systems where battery care is essential. By disconnecting the load when voltage drops, it prevents batteries from over-discharging during cloudy days or low sunlight periods. This feature enhances the efficiency and lifespan of your solar battery setup, making it a smart choice for renewable energy applications.
  • Question: Is it easy to install the protection module?

    Answer: Installation is straightforward, as the module comes with clear instructions and connection points. Users simply need to connect the input to the battery and the output to the load. It's designed for both novice and experienced technicians, making it suitable for various projects, from basic DIY to more advanced electrical installations.
  • Question: What materials is the module made from?

    Answer: The module is typically constructed with durable components that are resistant to overheating and corrosion, ensuring long-term reliability. This robustness is vital for applications in challenging environments, such as automotive or outdoor setups, where exposure to various elements can impact performance.
  • Question: How does this module enhance battery lifespan?

    Answer: By preventing over-discharge, this protection module plays a critical role in extending the lifespan of batteries. Consistent over-discharging can lead to irreversible damage, so by utilizing this module, you are taking proactive measures to safeguard your investment in batteries, especially in frequent-discharge environments.
  • Question: What types of loads can I connect to this module?

    Answer: You can connect various loads to this module, including lights, small motors, and other DC devices that operate within the 12V-36V range. It's ideal for applications in RVs, marine setups, and small electronic projects, offering a practical solution for managing different power demands without risking battery health.
  • Question: What should I do if the module indicates a low voltage disconnection?

    Answer: If the module indicates a low voltage disconnection, it's essential to check the battery status and recharge if necessary. This feature ensures your system is not drawing power at unsafe levels. Addressing low voltage conditions promptly can prevent battery damage and ensure that your devices remain operational.
  • Question: Where can I buy 2pcs 12V-36V DC Voltage Protection Module in Botswana?

    Answer: You can purchase the 2pcs 12V-36V DC Voltage Protection Module from Ubuy. They offer a range of electronics and accessories, ensuring that you find high-quality products along with reliable customer service tailored to your needs.

Onyehn Controllers Editorial Review

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The Onyehn 2pcs DC 12V-36V Voltage Protection Module Digital Low Voltage Protector Disconnect Switch Over Discharge Protection Module is a useful tool for regulating voltage and protecting against over-discharge for LiPo batteries. It is compatible with LiPo batteries and can be used to control a higher amperage relay to handle higher loads. It has pre-drilled holes for easy mounting and can be used in conjunction with buck converters to regulate output voltage.

Customer Reviews & Ratings

510 customers ratings
  • 5 Star
    67%
  • 4 Star
    13%
  • 3 Star
    11%
  • 2 Star
    3%
  • 1 Star
    6%

Review this product

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Pros

  • Can protect LiPo batteries from over-discharge
  • Compatible with LiPo batteries
  • Can be used to control higher amperage relay
  • Comes with pre-drilled holes for easy mounting

Cons

  • Not suitable for all types of batteries

Platform Trust & Buyer Confidence

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4.2/5 9477 reviews
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Jasmin
Verified buyer

“Great products and very good service: very easy and very fast international delivery.”

9 September 2026 · via Trustpilot
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Anke
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“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”

10 September 2026 · via Trustpilot
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Hazel
Verified buyer

“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”

10 September 2026 · via Trustpilot
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Opaleye
Verified buyer

“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”

11 September 2026 · via Trustpilot
AC
Adele
Verified buyer

“Easy to find and order what you want on the website. Delivery is quick to the UK”

8 September 2026 · via Trustpilot
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Important information

  • Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
  • Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.

BWP 303

Order now and get it around Sunday, September 27

QTY:

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Features & Benefits

  • Compatible with lead acid, lithium ion battery, solar panel battery. Not suitable for battery packs.
  • On-board momentary push button to set the low voltage disconnect parameter and 3 digit red LED display for easy operation.
  • Automatically disconnects load when the battery voltage reaches the set value to prolong battery lifetime.
  • Relay size is mini and the circuit lines are very thin. Maximum amperage before breaker trips is 20A.
  • Package includes 2 protection modules.
  • Reset: When the power is off, press and hold the two buttons at the same time, and then power on.

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