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501225 120mAh rechargeable LiPo battery
The 501225 3.7V 120mAh LiPo Battery is designed for miniature electronic products that require lightweight construction, stable voltage output, and reliable rechargeable performance within limited internal space. With a 3.7V nominal voltage and 120mAh capacity, this battery is suitable for compact sensors, smart tags, miniature controllers, wearable electronics, wireless devices, portable monitoring modules, and other small rechargeable products.
As a professional lithium polymer battery manufacturer, LithoTop provides customized 501225 LiPo battery solutions, including connector selection, wire length, PCM protection, cable direction, NTC options, labels, insulation, packaging, and OEM/ODM battery assembly according to customer project requirements.
Additional information
| Product Type | Li-Polymer battery |
|---|---|
| Model number | 501225 |
| Voltage (Nominal) | 3.7V |
| Capacity (Nominal) | 120mAh |
| Dimensions | 5.0±0.2*12±0.5*25±2.5mm |
| Constant Discharge Current | Typically 0.5C-1C |
| Working Temperature | charge: 0-45℃; discharge: -20-60℃ |
| Certification | CE |
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 501225 3.7V 120mAh LiPo battery is developed for electronic devices where battery dimensions and total product weight are important design considerations. Its compact pouch structure allows product engineers to integrate rechargeable power into slim sensors, wireless modules, portable accessories, miniature control systems, and space-limited IoT products.
With 120mAh capacity, this battery is well suited to low-power applications using periodic sensing, Bluetooth communication, LED indication, data storage, MCU control, standby operation, or short activation cycles. The standard 3.7V lithium polymer platform also simplifies integration with many compact electronic circuits and charging systems.
LithoTop applies strict production control during cell selection, capacity testing, voltage inspection, internal resistance checking, thickness verification, protection circuit assembly where required, aging testing, appearance inspection, and final quality control. These processes help support stable battery performance and consistent mass production quality.
- Compact 501225 Pouch Design
Suitable for miniature products with limited battery space and strict size requirements. - 120mAh Rechargeable Capacity
Provides practical operating time for low-power sensors, smart tags, Bluetooth modules, and portable electronics. - PCM Protection Available
Supports overcharge, over-discharge, over-current, and short-circuit protection according to project requirements. - Flexible Cable Configuration
Wire length, cable direction, connector type, and polarity can be customized according to PCB and enclosure design. - Strict Dimensional and Electrical Inspection
Voltage, capacity, internal resistance, thickness, appearance, and consistency are checked during production. - OEM & ODM Battery Customization
LithoTop supports prototype development, custom assembly, labels, packaging, and mass production.
- Miniature wireless sensors
- Smart asset tags
- Compact IoT devices
- Wearable electronic modules
- Bluetooth accessories
- Portable monitoring devices
- Electronic identification products
- Rechargeable smart accessories
- Miniature remote controllers
- Compact rechargeable electronics
5mm Thickness Flat Lipo Battery
| Model | Voltage(V) | Capacity(mAh) | Cell Size(T*W*L)mm | Shape |
|---|---|---|---|---|
| 500830 | 3.7 | 110 | 5*8*30 | Pouch |
| 500922 | 3.7 | 65 | 5*9*22 | Pouch |
| 500935 | 3.7 | 130 | 5*9*35 | Pouch |
| 501010 | 3.7 | 35 | 5*10*10 | Pouch |
| 501012 | 3.7 | 40 | 5*10*12 | Pouch |
| 501015 | 3.7 | 50 | 5*10*15 | Pouch |
| 501030 | 3.7 | 120 | 5*10*30 | Pouch |
| 501035 | 3.7 | 130 | 5*10*35 | Pouch |
| 501038 | 3.7 | 160 | 5*10*38 | Pouch |
| 501040 | 3.7 | 180 | 5*10*40 | Pouch |
| 501114 | 3.7 | 50 | 5*11*14 | Pouch |
| 501120 | 3.7 | 100 | 5*11*20 | Pouch |
| 501130 | 3.7 | 150 | 5*11*30 | Pouch |
| 501145 | 3.7 | 250 | 5*11*45 | Pouch |
| 501215 | 3.7 | 60 | 5*12*15 | Pouch |
| 501220 | 3.7 | 100 | 5*12*20 | Pouch |
| 501225 | 3.7 | 120 | 5*12*25 | Pouch |
| 501228 | 3.7 | 150 | 5*12*28 | Pouch |
| 501230 | 3.7 | 130 | 5*12*30 | Pouch |
| 501235 | 3.7 | 150 | 5*12*35 | Pouch |
| 501240 | 3.7 | 200 | 5*12*40 | Pouch |
| 501245 | 3.7 | 260 | 5*12*45 | Pouch |
| 501314 | 3.7 | 65 | 5*13*14 | Pouch |
| 501321 | 3.7 | 105 | 5*13*21 | Pouch |
| 501323 | 3.7 | 120 | 5*13*23 | Pouch |
| 501332 | 3.7 | 170 | 5*13*32 | Pouch |
| 501420 | 3.7 | 95 | 5*14*20 | Pouch |
| 501447 | 3.7 | 280 | 5*14*47 | Pouch |
| 501515 | 3.7 | 80 | 5*15*15 | Pouch |
| 501520 | 3.7 | 125 | 5*15*20 | Pouch |
| 501522 | 3.7 | 130 | 5*15*22 | Pouch |
| 501524 | 3.7 | 170 | 5*15*24 | Pouch |
| 501530 | 3.7 | 200 | 5*15*30 | Pouch |
| 501535 | 3.7 | 240 | 5*15*35 | Pouch |
| 501622 | 3.7 | 140 | 5*16*22 | Pouch |
| 501645 | 3.7 | 340 | 5*16*45 | Pouch |
| 501723 | 3.7 | 160 | 5*17*23 | Pouch |
| 501725 | 3.8 | 230 | 5*17*25 | Pouch |
| 501730 | 3.7 | 200 | 5*17*30 | Pouch |
| 501735 | 3.7 | 300 | 5*17*35 | Pouch |
| 501818 | 3.7 | 150 | 5*18*18 | Pouch |
| 501825 | 3.7 | 180 | 5*18*25 | Pouch |
| 501880 | 3.7 | 300 | 5*18*80 | Pouch |
| 502020 | 3.7 | 150 | 5*20*20 | Pouch |
| 502025 | 3.7 | 200 | 5*20*25 | Pouch |
| 502028 | 3.7 | 250 | 5*20*28 | Pouch |
| 502030 | 3.7 | 320 | 5*20*30 | Pouch |
| 502035 | 3.7 | 350 | 5*20*35 | Pouch |
| 502035 | 3.8 | 400 | 5*20*35 | Pouch |
| 502040 | 3.7 | 400 | 5*20*40 | Pouch |
| 502045 | 3.7 | 450 | 5*20*45 | Pouch |
| 502050 | 3.7 | 500 | 5*20*50 | Pouch |
| 502060 | 3.7 | 600 | 5*20*60 | Pouch |
| 502065 | 3.7 | 700 | 5*20*65 | Pouch |
| 502080 | 3.7 | 900 | 5*20*80 | Pouch |
| 502235 | 3.7 | 365 | 5*22*35 | Pouch |
| 502243 | 3.7 | 460 | 5*22*43 | Pouch |
| 502248 | 3.7 | 520 | 5*22*48 | Pouch |
| 502260 | 3.7 | 600 | 5*22*60 | Pouch |
| 502270 | 3.7 | 900 | 5*22*70 | Pouch |
| 502325 | 3.7 | 260 | 5*23*25 | Pouch |
| 502525 | 3.7 | 300 | 5*25*25 | Pouch |
| 502530 | 3.7 | 350 | 5*25*30 | Pouch |
| 502535 | 3.7 | 450 | 5*25*35 | Pouch |
| 502540 | 3.7 | 500 | 5*25*40 | Pouch |
| 502560 | 3.7 | 900 | 5*25*60 | Pouch |
| 502728 | 3.7 | 400 | 5*27*28 | Pouch |
| 502828 | 3.8 | 500 | 5*28*28 | Pouch |
| 503030 | 3.7 | 400 | 5*30*30 | Pouch |
| 503035 | 3.7 | 520 | 5*30*35 | Pouch |
| 503040 | 3.7 | 600 | 5*30*40 | Pouch |
| 503048 | 3.7 | 750 | 5*30*48 | Pouch |
| 503065 | 3.7 | 1200 | 5*30*65 | Pouch |
| 503450 | 3.7 | 1000 | 5*34*50 | Pouch |
| 503560 | 3.7 | 1200 | 5*35*60 | Pouch |
| 503759 | 3.7 | 1200 | 5*37*59 | Pouch |
| 504045 | 3.7 | 900 | 5*40*45 | Pouch |
| 504065 | 3.7 | 1500 | 5*40*65 | Pouch |
| 504070 | 3.7 | 1200 | 5*40*70 | Pouch |
| 505050 | 3.7 | 1500 | 5*50*50 | Pouch |
| 505060 | 3.7 | 2000 | 5*50*60 | Pouch |
| 505080 | 3.7 | 2200 | 5*50*80 | Pouch |
| 5050100 | 3.7 | 4000 | 5*50*100 | Pouch |
| 505573 | 3.7 | 2500 | 5*55*73 | Pouch |
| 506090 | 3.7 | 3000 | 5*60*90 | Pouch |
| 521012 | 3.7 | 45 | 5.2*10*12 | Pouch |
| 521220 | 3.7 | 90 | 5.2*12*20 | Pouch |
| 521417 | 3.7 | 100 | 5.2*14*17 | Pouch |
| 521525 | 3.7 | 170 | 5.2*15*25 | Pouch |
| 522030 | 3.7 | 280 | 5.2*20*30 | Pouch |
| 522035 | 3.8 | 400 | 5.2*20*35 | Pouch |
| 522540 | 3.8 | 680 | 5.2*25*40 | Pouch |
| 522830 | 3.8 | 560 | 5.2*28*30 | Pouch |
| 523450 | 3.8 | 1250 | 5.2*34*50 | Pouch |
| 531525 | 3.7 | 180 | 5.3*15*25 | Pouch |
| 551015 | 3.7 | 55 | 5.5*10*15 | Pouch |
| 551045 | 3.7 | 250 | 5.5*10*45 | Pouch |
| 551220 | 3.7 | 110 | 5.5*12*20 | Pouch |
| 551225 | 3.7 | 160 | 5.5*12*25 | Pouch |
| 551235 | 3.7 | 180 | 5.5*12*35 | Pouch |
| 551240 | 3.7 | 230 | 5.5*12*40 | Pouch |
| 551245 | 3.7 | 250 | 5.5*12*45 | Pouch |
| 551520 | 3.7 | 150 | 5.5*15*20 | Pouch |
| 551525 | 3.7 | 180 | 5.5*15*25 | Pouch |
| 551535 | 3.7 | 240 | 5.5*15*35 | Pouch |
| 551730 | 3.7 | 220 | 5.5*17*30 | Pouch |
| 551735 | 3.7 | 320 | 5.5*17*35 | Pouch |
| 552035 | 3.7 | 350 | 5.5*20*35 | Pouch |
| 552040 | 3.7 | 400 | 5.5*20*40 | Pouch |
| 552065 | 3.7 | 800 | 5.5*20*65 | Pouch |
| 552225 | 3.7 | 250 | 5.5*22*25 | Pouch |
| 552230 | 3.7 | 320 | 5.5*22*30 | Pouch |
| 552240 | 3.7 | 400 | 5.5*22*40 | Pouch |
| 552248 | 3.7 | 600 | 5.5*22*48 | Pouch |
| 552530 | 3.7 | 350 | 5.5*25*30 | Pouch |
| 552535 | 3.7 | 450 | 5.5*25*35 | Pouch |
| 552548 | 3.7 | 600 | 5.5*25*48 | Pouch |
| 552728 | 3.7 | 400 | 5.5*27*28 | Pouch |
| 553035 | 3.7 | 600 | 5.5*30*35 | Pouch |
| 552530 | 3.7 | 350 | 5.5*25*30 | Pouch |
| 552548 | 3.7 | 700 | 5.5*25*48 | Pouch |
| 552728 | 3.7 | 400 | 5.5*27*28 | Pouch |
| 553035 | 3.7 | 600 | 5.5*30*35 | Pouch |
| 555056 | 3.7 | 2100 | 5.5*50*56 | Pouch |
| 555075 | 3.7 | 2500 | 5.5*55*75 | Pouch |
| 5565113 | 3.7 | 5000 | 5.5*65*113 | Pouch |
| 581015 | 3.7 | 60 | 5.8*10*15 | Pouch |
| 581525 | 3.7 | 180 | 5.8*15*25 | Pouch |
| 582525 | 3.7 | 350 | 5.8*25*25 | Pouch |
*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 – Finland Smart Bicycle Light Sensor Project
A Finnish cycling electronics company was developing a compact rechargeable sensor module for premium bicycle lighting systems. The module monitored ambient light and bicycle movement, then automatically controlled the main lighting system according to riding conditions. The device needed to power a motion sensor, ambient light sensor, low-power MCU, LED indicator, and short-range wireless communication circuit.
The customer’s main challenge was the very limited internal space available inside the sensor housing. Their initial battery provided sufficient runtime but occupied too much room beside the PCB and interfered with the mounting structure. They needed a smaller rechargeable pouch battery that could support daily commuting functions without increasing the sensor enclosure size.
LithoTop reviewed the sensor sampling frequency, standby current, wake-up cycle, wireless communication peak, charging method, PCB dimensions, and available battery cavity. After evaluation, LithoTop recommended the 501225 3.7V 120mAh LiPo Battery because its compact format matched the available space while providing suitable capacity for the low-power operating profile.
During sample development, LithoTop optimized the wire outlet direction, cable length, PCM protection option, insulation structure, and battery position. Sample batteries were tested through repeated motion detection, ambient light sensing, wireless communication cycles, standby operation, charging verification, voltage stability checking, and mechanical fit evaluation.
Before pilot production, both teams confirmed the sample, battery dimensions, cable routing, connector configuration, protection requirements, packaging method, and incoming inspection standards. The final battery solution helped the customer maintain a compact sensor housing while achieving reliable daily operation for the bicycle lighting control system.
02 – Japan Rechargeable Electronic Locker Key Project
A Japanese access-control equipment company was developing a compact rechargeable electronic locker key for fitness centers, swimming pools, and private clubs. The device needed to store access credentials, communicate with locker readers, provide LED status indication, and remain in low-power standby for most of the day.
The customer wanted to reduce the size of the electronic key while improving its rechargeable capability. Their existing battery left insufficient space for the antenna and control PCB, forcing the enclosure to remain thicker than the industrial design team wanted.
LithoTop analyzed the access communication cycle, standby current, LED pulse duration, charging method, antenna position, PCB layout, and available battery cavity. Based on this evaluation, LithoTop recommended the 501225 3.7V 120mAh LiPo battery as a compact rechargeable power solution for the revised key design.
During prototype development, LithoTop adjusted the wire length, cable direction, insulation layer, protection circuit configuration, and battery label position. Samples were tested through repeated access activation, standby simulation, LED status operation, charging cycles, voltage stability testing, and enclosure assembly verification.
The customer then completed trial use at several fitness facilities and confirmed that the smaller battery arrangement created more room for the antenna while maintaining the required daily operating time. Before mass production, both teams finalized the approved sample, cable configuration, packaging requirements, and batch quality inspection standard.
The final battery solution helped the customer reduce the electronic key enclosure size and improve internal component layout without sacrificing rechargeable performance. For the customer, this supported a cleaner industrial design, easier assembly, and a better user experience for locker management systems.
Why Choose LithoTop for 501225 LiPo Battery Solutions?
Factory Support
Small lithium polymer batteries require precise control over dimensions, thickness, capacity consistency, internal resistance, sealing quality, cable direction, protection circuit layout, and charging compatibility. In miniature products, even a small battery size deviation may interfere with the PCB, housing, antenna, charging contacts, or sensor position.
LithoTop supports customers from prototype development to mass production with professional engineering assistance and strict quality control. Our team can evaluate battery cavity dimensions, operating current, standby consumption, wireless transmission peaks, charging method, connector requirements, wire direction, and final product assembly before confirming the battery solution.
More Customer Cooperation Cases
Powering leading batteries across wearables, medical devices, IoT, and consumer electronics in 30+ countries..
Security System
A European security equipment manufacturer needed a reliable lithium-ion battery pack for its emergency lighting system. LithoTop developed a customized battery solution with compact dimensions, stable power output, and dependable backup performance during power outages.
Portable Medical Monitor
A startup company focusing on smart health products needed a flexible battery solution for their next-generation fitness monitoring wearable. The device design was slim and curved, requiring a customized LiPo battery with precise dimensions and stable charging performance.
Portable Translator
A customer from Asia was developing a portable AI translation device for travel and business communication. The product required a battery with stable voltage output, compact size, and long standby performance to support voice processing and wireless transmission.
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.
Yes. LithoTop can support project-based certification and documentation requirements such as KC, CE, RoHS, UN38.3, MSDS, and other battery-related documents according to customer market requirements.
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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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