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Item #:
88236706
DC 3.7V 750mAh 902040 Rechargeable Lithium Polymer Battery, Suitable for DIY 3.7-5V Electronic Products with Built-in 2-Wire Battery Replacement and
80% of respondents would recommend this to a friend
Item #:
88236706
USD 24
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Highly rated and versatile rechargeable lithium batteries for electronic products, available in various capacities, sizes, and current ratings.
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What Stands Out
Compact Design
The 902040 lithium polymer battery is lightweight and small, making it perfect for portable electronic devices and DIY projects without adding unnecessary bulk.
Versatile Compatibility
This battery operates effectively across a 3.7 to 5V range, catering to a wide variety of electronic products and enhancing its usability for various applications.
Built-In LED Indicator
Equipped with a built-in LED light, users can easily monitor battery status, ensuring timely recharging and preventing over-discharge which prolongs battery life.
Product Details
| Number of Batteries | 1 Lithium Polymer batteries required. (included) |
| Brand | HXJNLDC |
| Model Number | 902040 |
| Model Name | 902040 |
| UPC | 728683367943 |
| Manufacturer | HXJN |
| Battery Cell Type | Lithium Polymer |
| Battery Capacity | 750 milliamp_hours |
| Voltage | 3.7 volts_of_direct_current |
| Reusability | Rechargeable |
| Amperage | 0.75 A |
| Unit Count | 1 Count |
| Battery Weight | 12.5 g |
| Item Dimensions | 1.61 x 0.79 x 0.35 inches (4.1 x 2 x 0.9 cm) |
| Item Weight | 16.5 g |
| Antenna Location | Clock |
| Battery Cell Composition | Lithium Polymer |
| Recommended Uses For Product | Clock |
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 Electronics Enthusiasts
Ideal for hobbyists creating custom electronics projects requiring a compact and efficient energy source.
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Small LED Projects
Perfect for powering small LED lights, providing a reliable energy source for decorative lighting and displays.
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Replacement Needs
Great for users needing a direct replacement for 2-wire battery setups in compatible devices, ensuring seamless function.
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High-Power Devices
Not suitable for devices requiring higher voltage or current ratings, which exceed the battery's specifications.
Product Description
DC 3.7V 750mAh 902040 Rechargeable Lithium Polymer Battery, Suitable for DIY 3.7-5V Electronic Products with Built-in 2-Wire Battery Replacement and LED Lights
Have any Query? Chat with us
Customer Questions & Answers
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Question:
What applications can I use the DC 3.7V 750mAh 902040 Rechargeable Lithium Polymer Battery for?
Answer: The DC 3.7V 750mAh 902040 battery is perfect for a wide range of DIY electronic projects, especially those functioning within the 3.7-5V range. This includes applications in LED lighting systems, small robotics, remote-controlled devices, and various portable electronic gadgets. Its compact size makes it suitable for devices where space is at a premium. If you're working on custom projects or replacements, this battery is your reliable energy source. -
Question:
How do I ensure the safety of using this rechargeable battery?
Answer: To ensure safety, it's essential to charge and discharge the battery using appropriate equipment designed for lithium polymer batteries. Always monitor the battery during charging and avoid exposing it to extreme temperatures or moisture. Proper usage also includes keeping it away from metal objects that could cause short circuits. Routine checks for swelling or damage can help maintain safety during operation. -
Question:
Can this battery be used as a replacement for other types of batteries?
Answer: Yes, the 902040 Lithium Polymer battery can often serve as a replacement for other batteries, provided they share similar voltage requirements and physical dimensions. Its 2-wire configuration allows it to be wired directly into many devices. If you’re customizing or repairing electronic gadgets, this battery's versatile compatibility enhances the functionality of your projects. -
Question:
What is the charging procedure for the DC 902040 battery?
Answer: To charge the 902040 battery, use a compatible lithium polymer charger set to the correct voltage of 3.7V. Connect the battery to the charger carefully and monitor it until fully charged, as overcharging can lead to battery damage. It's recommended to use a smart charger that automatically stops the charge once complete, ensuring the longevity of your battery. -
Question:
What is the discharge rate of the DC 3.7V 750mAh 902040 battery?
Answer: The discharge rate of the battery is typically measured in C-rates which signify how quickly the battery can be released from storage. For the 750mAh capacity, a safe discharge usually allows for moderate current draws suitable for electronic projects. It’s essential to match your project’s current requirements with the battery's discharge capabilities, ensuring your devices function optimally without strain. -
Question:
Does this battery come with any built-in protection features?
Answer: The DC 902040 battery comes equipped with robust safety features designed to prevent common risks associated with lithium polymer batteries. These include protection against overcharging and short circuits, which are critical for maintaining performance and ensuring safety during use. Proper care and monitoring will enhance these built-in features, giving you peace of mind in your projects. -
Question:
What size is the DC 902040 battery, and why is this important?
Answer: The size of the DC 902040 battery is 20mm x 40mm, making it compact and lightweight. This particular dimension is crucial for fitting into various devices, especially in compact electronic designs. Its small footprint allows engineers and hobbyists to integrate it into tight spaces without compromising on power efficiency, making it ideal for portable gadgets and prototypes. -
Question:
Is the DC 3.7V 750mAh battery suitable for outdoor use?
Answer: While the battery is functional, outdoor use requires additional precautions, particularly regarding moisture and temperature extremes. Placing it in a protective casing can safeguard against the elements. If your project involves outdoor applications like garden lights or remote sensors, ensuring the battery is shielded from water and physical damage is key to maintaining performance. -
Question:
Can I connect multiple batteries for higher capacity?
Answer: Yes, you can connect multiple 902040 batteries in parallel to increase capacity while maintaining the same voltage. This setup can extend the runtime of your devices significantly. Ensure connections are properly insulated and secure to prevent short circuits. This configuration is ideal for projects needing extended use, such as LED arrays or robotics requiring sustained power. -
Question:
Where can I buy the DC 3.7V 750mAh 902040 Rechargeable Lithium Polymer Battery?
Answer: You can purchase the DC 3.7V 750mAh 902040 Rechargeable Lithium Polymer Battery from Ubuy, a reliable online retailer that offers a wide variety of electronic products. Ubuy provides a user-friendly shopping experience, making it easy for customers in Palau to find and order essential components for their DIY and electronic projects.
Nutritionist's Take
As a nutritionist, it is important to clarify that the product "DC 3.7V 750mAh 902040 Rechargeable Lithium Polymer Battery" is not a food item, thus it cannot be evaluated in the conventional nutritional context. It is designed for electronic applications rather than dietary consumption. There are no nutritional benefits associated with this product, as it contains no ingredients or health claims. Potential drawbacks include the hazardous materials present in lithium batteries, which can pose health risks if not handled and disposed of correctly. It is unsuitable for any dietary needs and poses no health advantages for consumers in terms of nutrition. For health-conscious individuals, the focus should be on proper battery disposal and avoiding exposure to potential toxins.
HXJNLDC 3.7V 902040 Editorial Review
DC 3.7V 750mAh 902040 Rechargeable Lithium Polymer Battery is tailored for various DIY electronic projects and offers a reliable 750 milliamp_hours capacity. This HXJNLDC battery, weighing just 12.5 g and with compact dimensions of 1.61 x 0.79 x 0.35 inches, is ideal for powering devices like clocks or LED lights. Users appreciate its reusability feature, allowing for multiple charges, which enhances its convenience. For those embarking on DIY projects requiring 3.7-5V products, this battery stands out as a robust option. Overall, it garners positive feedback for performance and ease of use, making it a great choice for hobbyists and electronics enthusiasts alike.
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Pros
- Compact design fits various electronic devices
- Lightweight at only 12.5 grams
- Rechargeable for extended usability
- Suitable for DIY electronics projects
- Works well with LED lights
Cons
- Might not fit in all device models
Platform Trust & Buyer Confidence
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“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
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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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USD 24
Order now and get it around Friday, October 02
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
- Rechargeable lithium batteries for 3.7V-5V electronic products
- Various capacities ranging from 620mAh to 3000mAh
- Different sizes available in mm and inches
- Maximum current ratings up to 2A
- Positive customer reviews
- Reasonably priced
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