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203038 180mAh Electronic Badge Battery
The 203038 3.7V 180mAh Ultra Thin LiPo Battery is designed for compact electronic devices that require thin structure, lightweight design, and stable power output. With a 3.7V nominal voltage and 180mAh capacity, this battery is suitable for smart cards, electronic badges, wearable sensors, medical patches, RFID active tags, smart labels, and other space-limited rechargeable electronics.
As a professional lithium polymer battery manufacturer, LithoTop provides customized ultra thin LiPo battery solutions, including cell size customization, battery labels, packaging, and OEM/ODM battery pack assembly.
Additional information
| Product Type | Ultra thin lipo battery |
|---|---|
| Model number | 203038 |
| Voltage (Nominal) | 3.7V |
| Capacity (Nominal) | 180mAh |
| Dimensions | 2.0±0.2*30±0.5*38±0.5mm |
| Constant Discharge Current | Typically 0.5C-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 203038 3.7V 180mAh ultra thin LiPo battery is engineered for devices where battery thickness and internal layout are critical design factors. Compared with conventional small LiPo batteries, this ultra-thin pouch cell is easier to integrate into card-shaped, patch-style, and slim wearable products.
With 180mAh capacity, this battery provides a practical balance between slim structure and usable runtime. It is suitable for low-power electronics, standby operation, short wireless communication, sensor activation, LED indication, and compact rechargeable systems.
LithoTop applies strict production control during cell selection, capacity testing, voltage inspection, internal resistance testing, thickness checking, aging verification, appearance inspection, and final quality control. These processes help ensure stable battery performance, reliable safety, and consistent mass production quality.
- Ultra Thin Battery Structure
Designed for slim electronic devices where thickness control is very important. - 180mAh Practical Capacity
Provides better runtime than many smaller ultra-thin batteries while maintaining a slim profile. - Stable 3.7V Output
Supports sensors, chips, Bluetooth modules, LED indicators, and small electronic circuits. - 203038 Slim Pouch Cell Design
Suitable for card-shaped, patch-style, and compact rechargeable electronic products. - Lightweight Lithium Polymer Cell
Helps reduce total product weight for wearable and portable applications. - Low Self-Discharge Performance
Supports better standby behavior for smart labels, tags, and small electronic devices. - Strict Thickness and Quality Control
Each battery is checked for voltage, capacity, thickness, appearance, and consistency before shipment.
- Smart cards
- Electronic badges
- RFID active tags
- Smart labels
- Wearable sensors
- Medical patches
- Bluetooth accessories
- Miniature tracking devices
- Thin IoT sensor modules
- Compact rechargeable electronics
1mm Thickness Flat Lipo Battery
| Model | Voltage(V) | Capacity | Cell size(T*W*L)mm |
|---|---|---|---|
| 042040 | 3.7 | 8 | 0.4*20*40 |
| 042255 | 3.7 | 24 | 0.4*22*55 |
| 062550 | 3.7 | 40 | 0.6*25*50 |
| 072738 | 3.8 | 38 | 0.7*27*38 |
| 084545 | 3.7 | 110 | 0.8*45*45 |
| 012323 | 3.7 | 30 | 1*23*23 |
| 013040 | 3.7 | 80 | 1*30*40 |
| 013050 | 3.7 | 100 | 1*30*50 |
| 014348 | 3.7 | 130 | 1*43*48 |
| 014460 | 3.7 | 180 | 1*44*60 |
| 015253 | 3.7 | 180 | 1*52*53 |
| 015362 | 3.7 | 250 | 1*53*62 |
| 123030 | 3.7 | 80 | 1.2*30*30 |
| 126070 | 3.7 | 300 | 1.2*60*70 |
| 132939 | 3.7 | 90 | 1.3*29*39 |
| 153040 | 3.7 | 110 | 1.5*30*40 |
| 155075 | 3.7 | 350 | 1.5*50*75 |
| 155776 | 3.7 | 480 | 1.5*57*76 |
| 163050 | 3.7 | 160 | 1.6*30*50 |
| 191622 | 3.7 | 35 | 1.9*16*22 |
*Contact us for more Li-Po batteries 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 Retail Label Project from Germany
A German smart retail technology company was developing a rechargeable electronic shelf label for supermarkets and warehouse shelves. The product needed to remain thin and lightweight while powering a small display, wireless update module, and control circuit. Their previous battery option was too thick, making the final label housing uneven and difficult to assemble.
The customer contacted LithoTop because they needed an ultra thin rechargeable LiPo battery that could fit inside a slim label structure while still providing reliable standby time. LithoTop reviewed the label housing, display refresh frequency, wireless update interval, charging method, battery cavity, and expected usage cycle.
After evaluation, LithoTop recommended the 203038 3.7V 180mAh Ultra Thin LiPo Battery. Our engineering team judged that the 180mAh capacity could support the customer’s low-power operating profile, while the slim pouch cell structure helped maintain the label’s compact appearance.
During sample development, LithoTop optimized the cable outlet direction, wire length, connector type, insulation method, and label position to match the customer’s assembly process. Sample testing included thickness verification, capacity testing, standby simulation, wireless update testing, charging compatibility checking, and installation fit validation.
Before mass production, both teams confirmed samples, battery thickness tolerance, labeling details, packaging requirements, and incoming inspection standards. The final battery solution helped the customer keep the electronic shelf label slim while achieving stable rechargeable performance. For the customer, this reduced assembly difficulty and improved product reliability for retail deployment.
02 – Wearable Rehabilitation Sensor Project from Japan
A Japanese healthcare electronics company was developing a thin wearable rehabilitation sensor used to record movement data during physical therapy. The device needed to power a motion sensor, small processor, memory module, and occasional wireless data transmission. The main challenge was comfort, because the sensor had to be thin enough to attach to the body without affecting movement.
The customer approached LithoTop after testing several small batteries that provided acceptable runtime but made the sensor module too bulky. They needed a battery manufacturer that could balance thin structure, stable output, and reliable production consistency.
LithoTop analyzed the sensor’s working current, transmission current peak, target usage time, charging circuit, enclosure material, and battery placement. Based on this evaluation, LithoTop recommended the 203038 3.7V 180mAh ultra thin LiPo battery as a compact rechargeable power source.
During prototype development, LithoTop adjusted the insulation design, cable outlet direction, wire length, and protection option to match the customer’s thin sensor structure. Sample batteries were tested through sensor operation simulation, wireless pulse testing, voltage stability checking, charge-discharge cycling, storage testing, and installation fit verification.
Before production approval, the customer confirmed sample performance, battery thickness, packaging method, and incoming inspection standard. The final battery solution helped the rehabilitation sensor maintain a thinner and more comfortable structure. For the customer, this improved user comfort, reduced mechanical design conflict, and supported smoother wearable medical product development.
Why Choose LithoTop for Ultra Thin Battery Solutions?
Factory Support
Ultra thin lithium polymer batteries require precise control over battery thickness, sealing reliability, voltage consistency, internal resistance, tab position, and mechanical tolerance. For slim electronic products, even a small difference in battery thickness, cable outlet direction, or protection circuit position may affect final assembly.
LithoTop supports customers from early sample evaluation to mass production with professional engineering support and strict quality inspection. Our team can help evaluate product structure, battery thickness, runtime target, charging method, working current, 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 Card
A smart card manufacturer required ultra-thin rechargeable battery to fit a standard card. LithoTop developed the custom LiPo battery with 1mm thickness, stable performance, long service life for secure authentication and payment applications.
Wearable Health Patch
A healthcare company needed a lightweight and flexible battery for a wearable health monitoring patch. LithoTop engineered an ultra-thin LiPo battery with high energy density and reliable performance for continuous biometric monitoring.
GPS Tracker
An IoT device manufacturer required a compact battery with long standby time for a mini GPS tracker. LithoTop provided a customized ultra-thin LiPo battery that maximized available space while delivering stable power for real-time tracking applications.
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.
No. This battery is mainly designed for low-power and space-limited devices. For products requiring high current output, LithoTop can recommend other high-rate LiPo battery models.
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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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