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The 151520 3.8V 22mAh Thin Polymer Battery is designed for ultra-compact electronic devices that require thin structure, lightweight design, and stable voltage output. With a 3.8V high-voltage platform and 22mAh capacity, this battery is suitable for smart cards, electronic tags, smart labels, wearable sensors, medical patches, electronic badges, and other space-limited rechargeable devices.
As a professional lithium polymer battery manufacturer, LithoTop provides customized thin polymer battery solutions, including cell size customization, labels, packaging, and OEM/ODM battery pack assembly.
| Product Type | Ultra thin lipo battery |
|---|---|
| Model number | 151520 |
| Voltage (Nominal) | 3.8V |
| Capacity (Nominal) | 22mAh |
| Dimensions | 1.5±0.2*15±0.5*20±0.5mm |
| Constant Discharge Current | Typically 0.5C-1C |
| Working Temperature | charge: 0-45℃; discharge: -20-60℃ |
Delivering superior performance consistency and longer cycle life through automated cell matching technology designed for heavy-duty industrial applications.

The 151520 3.8V 22mAh thin polymer battery is engineered for products where battery thickness, footprint, and weight are critical design factors. Compared with standard 3.7V small lithium polymer batteries, the 3.8V high-voltage design helps improve usable energy within a very limited battery volume.
With 22mAh capacity, this battery is mainly used in low-power devices that require compact rechargeable power for standby operation, sensor activation, short wireless communication, LED indication, and electronic module support. Its thin pouch cell structure makes it easier to integrate into smart cards, thin wearable modules, compact tags, and lightweight electronic products.
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.


| 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!
Discover how we helps global customers solve real-world battery challenges through customized lithium battery solutions.
A Dutch security technology company was developing a rechargeable smart access card for office buildings and industrial facilities. The product needed to remain thin enough for daily card use while powering a small authentication chip, LED indicator, and short wireless activation function. Their previous battery option created uneven thickness, which affected the final card assembly.
The customer contacted LithoTop because they needed a miniature thin polymer battery that could fit inside a limited card structure without affecting the card profile. LithoTop reviewed the internal layout, battery cavity, standby current, activation cycle, charging method, and assembly process.
After evaluation, LithoTop recommended the 151520 3.8V 22mAh Thin Polymer Battery. Our engineering team judged that the 22mAh capacity was suitable for the customer’s low-power usage pattern, while the 3.8V high-voltage platform helped improve usable energy within a very small battery volume.
During sample development, LithoTop optimized the tab direction, and packaging method to reduce assembly stress inside the card. Sample testing included thickness verification, capacity testing, standby simulation, pulse activation testing, charging compatibility checking, and installation fit validation.
A South Korean electronics company was developing a mini wearable sensor used for short-term activity and posture monitoring. The device required stable power for a sensing circuit, data storage chip, and occasional signal transmission. The main challenge was that the product needed to be small, lightweight, and comfortable enough for daily wearing.
The customer approached LithoTop after testing several small batteries that were either too large or difficult to integrate into the thin sensor housing. They needed a battery manufacturer that could balance compact structure, stable output, and repeatable production quality.
LithoTop analyzed the sensor’s standby current, sampling interval, transmission current peak, target usage time, charging method, enclosure material, and battery placement. Based on this evaluation, LithoTop recommended the 151520 3.8V 22mAh thin polymer battery as a compact rechargeable power source.
During prototype development, LithoTop adjusted the insulation design 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 wearable sensor maintain a smaller and more comfortable design. For the customer, this improved user comfort, reduced mechanical design conflict, and supported smoother product development.
Thin polymer batteries require precise control over battery thickness, sealing reliability, voltage consistency, internal resistance, tab position, cable direction, and mechanical tolerance. For ultra-small electronic products, even a slight change in battery size, wire outlet, 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 battery thickness, product structure, runtime target, charging method, working current, and real application conditions before confirming the final battery solution.
Powering leading batteries across wearables, medical devices, IoT, and consumer electronics in 30+ countries..


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.
Explore more customized lithium battery solutions from LithoTop
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.
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.
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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