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126825 3.8V 15mAh Curved LiPo Battery
The 126825 3.8V 15mAh Curved LiPo Battery is designed for compact electronic devices that require a curved battery shape, ultra-lightweight structure, and stable voltage output. With a 3.8V high-voltage platform and 15mAh capacity, this battery is suitable for smart rings, wearable sensors, medical patches, electronic tags, and other curved or space-limited rechargeable devices.
As a professional lithium polymer battery manufacturer, LithoTop provides customized curved LiPo battery solutions, including curvature design, battery size customization, labels, packaging, and OEM/ODM battery pack assembly.
Additional information
| Product Type | Curved Lipo battery |
|---|---|
| Model number | 126825 |
| Voltage (Nominal) | 3.8V |
| Capacity (Nominal) | 15mAh |
| Dimensions | 1.2±0.2*6.8±0.2*25±0.2mm (R10.7) |
| Constant Discharge Current | Typically 0.2C-1C |
| Working Temperature | charge: 0-45℃; discharge: -20-60℃ |
Professional Grade A Lipo Battery Solutions
Delivering superior performance consistency and longer cycle life through automated cell matching technology designed for heavy-duty industrial applications.
The 126825 3.8V 15mAh curved LiPo battery is engineered for products where a flat battery cannot fully match the device structure. Its curved pouch design helps improve space utilization inside arc-shaped, ring-shaped, band-shaped, and ergonomic electronic products.
With 15mAh capacity, this battery is mainly suitable for low-power electronics requiring compact rechargeable energy for standby operation, short wireless communication, sensor activation, LED indication, biometric detection, and micro electronic modules. The 3.8V high-voltage platform helps improve usable energy within a very limited battery volume.
LithoTop applies strict production control during cell selection, curvature forming, capacity testing, voltage inspection, internal resistance testing, thickness checking, aging verification, appearance inspection, and final quality control. These processes help ensure stable performance, reliable safety, and consistent production quality.
- Curved LiPo Battery Structure
Designed for arc-shaped, ring-shaped, and ergonomic electronic product layouts. - 3.8V High-Voltage Platform
Provides higher energy density compared with standard 3.7V lithium polymer battery designs. - 15mAh Miniature Capacity
Suitable for low-power electronics, standby backup, short activation cycles, and compact rechargeable systems. - Compact 126825 Cell Design
Easy to integrate into smart rings, curved sensors, electronic tags, and miniature wearable products. - Stable Voltage Output
Supports small chips, sensors, LED indicators, Bluetooth modules, and low-power control circuits. - Lightweight Polymer Cell
Helps reduce total product weight for wearable and portable electronic applications. - Controlled Curvature and Thickness
Curvature, thickness, sealing edge, and cable direction can be evaluated according to product structure.
- Smart rings
- Wearable sensors
- Medical sensor patches
- Smart cards
- Electronic tags
- RFID active tags
- Smart labels
- Miniature Bluetooth modules
- Curved IoT sensor devices
- Compact rechargeable electronics
Smart Ring Curve Lipo Battery
| Model | Voltage(V) | Capacity(mAh) | Cell Size(T*W*L)mm | Shape | Polairty&Direction |
|---|---|---|---|---|---|
| 125034 | 3.7 | 14 | 1.25*5.1*34 | Curve | CD |
| 3.8 | 16 | Curve | |||
| 125625 | 3.7 | 10 | 1.25*5.6*25 | Curve | CD |
| 3.8 | 12 | Curve | |||
| 125628 | 3.7 | 12 | 1.25*5.6*28 | Curve | CD |
| 3.8 | 14 | Curve | |||
| 125634 | 3.7 | 15 | 1.25*5.6*34 | Curve | CD |
| 3.8 | 17 | Curve | |||
| 126825126825 3.8V 15mAh Curved LiPo Battery | 3.7 | 13 | 1.25*6.9*25 | Curve | ABCD |
| 3.8 | 15 | Curve | |||
| 120732 | 3.7 | 17 | 1.25*7.1*31 | Curve | ABCD |
| 3.8 | 19 | Curve | |||
| 155034 | 3.7 | 16 | 1.52*5.1*34 | Curve | CD |
| 3.8 | 18 | Curve | |||
| 155625 | 3.7 | 12 | 1.52*5.6*25 | Curve | CD |
| 3.8 | 14 | Curve | |||
| 155628 | 3.7 | 14 | 1.52*5.6*28 | Curve | CD |
| 3.8 | 16 | Curve | |||
| 155634 | 3.7 | 18 | 1.52*5.6*34 | Curve | CD |
| 3.8 | 20 | Curve | |||
| 156825156825 3.8V 18mAh Smart Ring Battery | 3.7 | 16 | 1.52*6.9*25 | Curve | ABCD |
| 3.8 | 18 | Curve | |||
| 150720 | 3.7 | 12 | 1.52*6.8*20.5 | Curve | ABCD |
| 3.8 | 13 | Curve | |||
| 150732 | 3.7 | 20 | 1.52*7.1*31 | Curve | ABCD |
| 3.8 | 22 | Curve | |||
| 160620160620 3.8V 12mAh Curved Polymer Battery | 3.7 | 11 | 1.6*6*20 | Curve | ABCD |
| 3.8 | 12 | Curve | |||
| 160625160625 3.8V 17mAh Curved Lithium Battery | 3.7 | 15 | 1.6*6*25 | Curve | ABCD |
| 3.8 | 17 | Curve | |||
| 160630160630 3.8V 18mAh Curved Batteries | 3.7 | 18 | 1.6*6*30 | Curve | ABCD |
| 3.8 | 21 | Curve | |||
| 160635 | 3.7 | 25 | 1.6*6*35 | Curve | D |
| 3.8 | 28 | Curve | |||
| 185625 | 3.7 | 17 | 1.8*5.6*25 | Curve | CD |
| 3.8 | 20 | Curve | |||
| 185628 | 3.7 | 19 | 1.8*5.6*28 | Curve | CD |
| 3.8 | 22 | Curve | |||
| 185634 | 3.7 | 23 | 1.8*5.6*34 | Curve | CD |
| 3.8 | 26 | Curve | |||
| 186825 | 3.7 | 22 | 1.8*7*25 | Curve | CD |
| 3.8 | 24 | Curve | |||
| 180732 | 3.7 | 30 | 1.8*7*31 | Curve | CD |
| 3.8 | 34 | Curve | |||
| 210630 | 3.7 | 30 | 2.1*6*30 | Curve | D |
| 3.8 | 33 | Curve | |||
| 210635 | 3.7 | 35 | 2.1*6*35 | Curve | C |
| 3.8 | 38 | Curve |
*Contact us for custom LiPo battery or customize your special battery !
Customer Development Story
Discover how we helps global customers solve real-world battery challenges through customized lithium battery solutions.
01 – Smart Ring Project from South Korea
A South Korean wearable electronics company was developing a compact smart ring for activity tracking and short notification functions. The product needed to remain small, comfortable, and lightweight while powering a sensing circuit, indicator light, and short wireless communication function. The main challenge was that a flat battery could not fit naturally inside the ring-shaped structure.
The customer contacted LithoTop because they needed a curved rechargeable LiPo battery that could follow the product arc without increasing the ring thickness. LithoTop reviewed the internal ring layout, available battery cavity, standby current, wireless activation cycle, charging method, and expected usage time.
After evaluation, LithoTop recommended the 126825 3.8V 15mAh Curved LiPo Battery. Our engineering team judged that the 15mAh capacity was suitable for the customer’s low-power operating profile, while the curved battery structure helped improve space utilization inside the compact ring design.
During sample development, LithoTop optimized the curvature direction, tab position, cable outlet, insulation method, and packaging approach to reduce assembly stress. Sample testing included curvature fit checking, capacity testing, standby simulation, pulse discharge testing, charging compatibility checking, and installation validation.
Before mass production preparation, both teams confirmed samples, curvature tolerance, battery dimensions, charging requirements, labeling details, and inspection standards. The final battery solution helped the customer improve internal space usage while keeping the smart ring lightweight and comfortable. For the customer, this reduced mechanical redesign pressure and supported faster prototype validation.
02 – Curved Medical Patch Project from the United States
A US medical electronics company was developing a small curved sensor patch for short-term body temperature and movement monitoring. The patch needed to follow the user’s body curve while powering a sensor module, memory chip, and occasional wireless data transmission. Their previous flat battery created local stiffness, making the patch less comfortable during wearing tests.
The customer approached LithoTop because they needed a miniature curved LiPo battery that could support stable output while improving wearing comfort. LithoTop analyzed the patch’s working current, transmission current peak, enclosure material, bending area, target wearing time, and charging design.
Based on this evaluation, LithoTop recommended the 126825 3.8V 15mAh curved LiPo battery. The curved structure helped the battery better match the patch shape, while the 3.8V high-voltage chemistry supported improved usable energy in a very small battery volume.
During prototype development, LithoTop adjusted the insulation design, wire length, cable outlet direction, and protection option to match the customer’s curved patch structure. Sample batteries were tested through sensor operation simulation, wireless pulse testing, voltage stability checking, charge-discharge cycling, storage testing, and curved installation fit verification.
Before production approval, the customer confirmed sample performance, curvature fit, battery thickness, packaging method, and incoming inspection standard. The final battery solution helped the medical patch maintain a thinner and more comfortable structure. For the customer, this improved user comfort, reduced mechanical conflict, and supported smoother wearable medical product development.
Why Choose LithoTop for 126825 Curved LiPo Battery Solutions?
Factory Support
Curved lithium polymer batteries require more than simply bending a standard pouch cell. To achieve reliable performance, the battery must control curvature design, sealing reliability, thickness tolerance, voltage consistency, internal resistance, tab position and mechanical stress during assembly.
LithoTop supports customers from early sample evaluation to mass production with professional engineering support and strict quality inspection. Our team can help evaluate battery curvature, product structure, runtime target, charging method, working current and real application conditions before confirming the final battery solution.
More Customer Cooperation Cases
Powering leading batteries across wearables, medical devices, IoT, and consumer electronics in 30+ countries..
Smart Health Ring
A wearable health company needed a curved LiPo battery with narrow width for a compact smart ring. LithoTop developed a customized arc-shaped battery that maximized internal space while supporting continuous health and sleep monitoring.
Smart Fitness Ring
A fitness technology company required a small curved battery with reliable runtime for its next-generation smart ring. LithoTop engineered a custom LiPo solution with precise dimensions, high energy density, and stable performance.
Smart Payment Ring
A smart wearable developer needed an ultra-compact arc-shaped battery for a connected payment ring. LithoTop provided a customized curved LiPo battery designed to fit the circular structure while supporting wireless connectivity and daily use.
Handling Precautions & Guidelines
Find answers to the most common questions about ordering, shipping, certifications, and working with lithotop as your battery partner.
Engineer’s will make inner BOM according to your confirmed samples. And our quality control teams continuously monitor the entire manufacturing process to ensure the each mass production is the same as samples.
LithoTop specializes in custom lithium battery solutions, including LiPo batteries, Li-ion battery packs, LiFePO4 batteries, high-rate drone batteries, curved batteries, ultra-thin batteries, and custom rechargeable battery packs for industrial and consumer applications.
LithoTop focuses on:Custom battery solutions for special applications, own developed PCB/PCM to help you with Competitive factory-direct pricing, Experience with difficult battery projects such as curved, ultra-thin, and high-discharge batteries. Long-term cooperation support for startups and established brands.
Yes. LithoTop provides fully customized battery solutions based on your device requirements, including voltage, capacity, discharge rate, dimensions, connector type, PCM/BMS protection, and special shapes such as curved or ultra-thin batteries.
Standard samples are usually available quickly about 3-7 days, while custom battery projects typically require evaluation, engineering confirmation, prototyping, and testing. The timeline depends on battery specifications, and certification requirements. Mass order is about 30 working days.
Depending on the product and project requirements, LithoTop batteries can support certifications including UN38.3, MSDS, CE, RoHS, IEC62133, UL , and other transportation or safety compliance documents.
MOQ depends on the battery model and customization level. Standard batteries may support lower quantities like 100pcs, while fully customized battery projects usually require a development MOQ. LithoTop supports both prototype projects and mass production orders.
LithoTop follows strict quality control procedures including:Incoming material inspection, Cell matching and grading Capacity, and voltage testing, Aging and performance tests, 100% Safety inspections before shipment.Quality consistency is critical for battery reliability and long-term cooperation.
Normally, we ship our batteries via DHL, UPS, FedEx, air freight, or sea , depending on order size, destination, and customer preference.
LithoTop is a professional lithium battery manufacturer with production experience in custom battery development and assembly. We provide direct factory support, engineering assistance, quality control, and customized battery solutions for global customers. We wecome you to visit our factory.
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Our Factory Insight
LithoTop operates advanced lithium battery manufacturing facilities equipped with automated production lines, precision testing equipment, and strict quality control systems. From cell selection to battery assembly and final inspection, every process is carefully managed to ensure stable performance, reliable quality, and high production efficiency. With experienced engineers and strong OEM/ODM capability, we provide customized battery solutions for customers worldwide.
Global Certifications & Compliance Support
LithoTop provides comprehensive certification support for custom lithium batteries to help customers accelerate product development and global market entry. From prototype verification to mass production, our engineering team assists with battery compliance, transportation documentation, and international safety standards, reducing certification risks and shortening your project timeline.
Industry News Insight
Stay updated with the latest lithium battery industry news, product innovations, technology insights, and application trends from LithoTop. Explore expert articles, battery guides, and industry updates to learn more about custom lithium battery solutions, energy storage, UAV batteries, wearable device batteries, and advanced power technologies.
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