Why Battery Swelling Happens in Wearable Devices?
I often meet teams after swelling complaints appear. The product looks finished, the launch is…
The 652530 3.7V 500mAh Rechargeable LiPo Battery is designed for portable electronic devices that require stable voltage output, reliable runtime, and flexible battery pack customization. With a 3.7V nominal voltage and 500mAh capacity, this battery is suitable for wireless sensors, smart remote controls, handheld electronics, Bluetooth products, portable medical devices, IoT equipment, and other rechargeable electronic products.
As a professional lithium polymer battery manufacturer, LithoTop provides customized 652530 rechargeable LiPo battery solutions, including connector selection, wire length, PCM protection, NTC, cable direction, battery labels, shrink wrap, packaging, and OEM/ODM battery pack assembly.
| Product Type | Li-Polymer battery |
|---|---|
| Model number | 652530 |
| Voltage (Nominal) | 3.7V |
| Capacity (Nominal) | 500mAh |
| Dimensions | 6.5±0.2*25±0.5*30±2.5mm |
| Constant Discharge Current | Typically 0.5C-1C |
| Working Temperature | charge: 0-45℃; discharge: -20-60℃ |
| Certification | CE/ROHS/UN38.3/MSDS |
Delivering superior performance consistency and longer cycle life through automated cell matching technology designed for heavy-duty industrial applications.

The 652530 3.7V 500mAh rechargeable LiPo battery is designed for compact products that need a practical balance between battery size, runtime, and stable rechargeable performance. Its lithium polymer pouch structure allows flexible integration into slim enclosures, wireless modules, handheld devices, smart controllers, sensor equipment, and portable rechargeable systems.
With 500mAh capacity, this battery can support control boards, Bluetooth modules, wireless transmission circuits, LED indicators, small displays, sensors, memory chips, alarm functions, and standby operation. It is a suitable solution for product developers who need dependable rechargeable power without increasing product size too much.
LithoTop applies strict production control during cell selection, capacity testing, voltage inspection, internal resistance testing, PCM assembly, aging verification, appearance inspection, and final quality control. These processes help ensure stable battery performance, reliable safety protection, and consistent mass production quality.


| Models | Voltage(V) | Capacity(mAh) | Cell Dimensions(mm) | Shape |
|---|---|---|---|---|
| 601015 | 3.7 | 60 | 6.0*10*15mm | Rectangle |
| 601030 | 3.7 | 150 | 6.0*10*30mm | Rectangle |
| 601040 | 3.7 | 200 | 6.0*10*40mm | Rectangle |
| 601045 | 3.7 | 260 | 6.0*10*45mm | Rectangle |
| 601114 | 3.7 | 60 | 6.0*11*14mm | Rectangle |
| 601115 | 3.7 | 70 | 6.0*11*15mm | Rectangle |
| 601218 | 3.7 | 90 | 6.0*12*18mm | Rectangle |
| 601220 | 3.7 | 110 | 6.0*12*20mm | Rectangle |
| 601225 | 3.7 | 150 | 6.0*12*25mm | Rectangle |
| 601225 | 3.8 | 190 | 6.0*12*29mm | Rectangle |
| 601230 | 3.7 | 180 | 6.0*12*30mm | Rectangle |
| 601236 | 3.7 | 250 | 6.0*12*36mm | Rectangle |
| 601245 | 3.7 | 320 | 6.0*12*45mm | Rectangle |
| 601260 | 3.7 | 400 | 6.0*12*60mm | Rectangle |
| 601332 | 3.7 | 170 | 6.0*13*32mm | Rectangle |
| 601430 | 3.7 | 210 | 6.0*14*30mm | Rectangle |
| 601430 | 3.8 | 280 | 6.0*14*30mm | Rectangle |
| 601435 | 3.7 | 280 | 6.0*14*35mm | Rectangle |
| 601448 | 3.7 | 400 | 6.0*14*48mm | Rectangle |
| 601452 | 3.7 | 450 | 6.0*14*52mm | Rectangle |
| 601515 | 3.7 | 90 | 6.0*15*15mm | Rectangle |
| 601520 | 3.7 | 150 | 6.0*15*20mm | Rectangle |
| 601525 | 3.7 | 180 | 6.0*15*25mm | Rectangle |
| 601530 | 3.7 | 230-3C | 6.0*15*30mm | Rectangle |
| 601530 | 3.7 | 250 | 6.0*15*30mm | Rectangle |
| 601535 | 3.7 | 300 | 6.0*15*35mm | Rectangle |
| 601621 | 3.7 | 160-3C | 6.0*16*21mm | Rectangle |
| 601624 | 3.7 | 180 | 6.0*16*24mm | Rectangle |
| 601730 | 3.7 | 270 | 6.0*17*30mm | Rectangle |
| 601735 | 3.7 | 350 | 6.0*17*35mm | Rectangle |
| 601748 | 3.7 | 480 | 6.0*17*48mm | Rectangle |
| 601752 | 3.7 | 500 | 6.0*17*52mm | Rectangle |
| 601818 | 3.7 | 160 | 6.0*18*18mm | Rectangle |
| 601821 | 3.7 | 180 | 6.0*18*21mm | Rectangle |
| 601843 | 3.7 | 450 | 6.0*18*43mm | Rectangle |
| 602020 | 3.7 | 200 | 6.0*20*20mm | Rectangle |
| 602025 | 3.7 | 250 | 6.0*20*25mm | Rectangle |
| 602030 | 3.7 | 300 | 6.0*20*30mm | Rectangle |
| 602035 | 3.7 | 400 | 6.0*20*35mm | Rectangle |
| 602040 | 3.7 | 450 | 6.0*20*40mm | Rectangle |
| 602045 | 3.7 | 500 | 6.0*20*45mm | Rectangle |
| 602060 | 3.7 | 800 | 6.0*20*60mm | Rectangle |
| 602060 | 3.8 | 1000 | 6.0*20*60mm | Rectangle |
| 602080 | 3.7 | 1200 | 6.0*20*80mm | Rectangle |
| 602225 | 3.7 | 260 | 6.0*22*25mm | Rectangle |
| 602242 | 3.7 | 500 | 6.0*22*42mm | Rectangle |
| 602248 | 3.7 | 650 | 6.0*22*48mm | Rectangle |
| 602423 | 3.7 | 300 | 6.0*24*23mm | Rectangle |
| 602435 | 3.7 | 400-10C | 6.0*24*35mm | Rectangle |
| 602525 | 3.7 | 300 | 6.0*25*25mm | Rectangle |
| 602525 | 3.8 | 400 | 6.0*25*25mm | Rectangle |
| 602530 | 3.7 | 400 | 6.0*25*30mm | Rectangle |
| 602535 | 3.7 | 500 | 6.0*25*35mm | Rectangle |
| 602540 | 3.7 | 600 | 6.0*25*40mm | Rectangle |
| 602560 | 3.7 | 1000 | 6.0*25*60mm | Rectangle |
| 602626 | 3.7 | 400 | 6.0*26*26mm | Rectangle |
| 602661 | 3.7 | 1300 | 6.0*26*61mm | Rectangle |
| 602690 | 3.7 | 1600 | 6.0*26*90mm | Rectangle |
| 602740 | 3.7 | 600 | 6.0*27*40mm | Rectangle |
| 602823 | 3.7 | 350 | 6.0*28*23mm | Rectangle |
| 602827 | 3.7 | 420 | 6.0*28*27mm | Rectangle |
| 602830 | 3.7 | 530 | 6.0*28*30mm | Rectangle |
| 602840 | 3.7 | 700 | 6.0*28*40mm | Rectangle |
| 603030 | 3.7 | 500 | 6.0*30*30mm | Rectangle |
| 603035 | 3.7 | 600 | 6.0*30*35mm | Rectangle |
| 603040 | 3.7 | 750 | 6.0*30*40mm | Rectangle |
| 603048 | 3.7 | 1000 | 6.0*30*48mm | Rectangle |
| 603055 | 3.7 | 1000 | 6.0*30*55mm | Rectangle |
| 603060 | 3.7 | 1200 | 6.0*30*60mm | Rectangle |
| 603443 | 3.7 | 850 | 6.0*33*43mm | Rectangle |
| 603450 | 3.7 | 1200 | 6.0*34*50mm | Rectangle |
| 603759 | 3.7 | 1500 | 6.0*37*59mm | Rectangle |
| 604040 | 3.7 | 1000 | 6.0*40*40mm | Rectangle |
| 604050 | 3.7 | 1500 | 6.0*40*50mm | Rectangle |
| 604060 | 3.7 | 1800 | 6.0*40*60mm | Rectangle |
| 604070 | 3.7 | 2000 | 6.0*40*70mm | Rectangle |
| 604340 | 3.7 | 1200 | 6.0*43*40mm | Rectangle |
| 604365 | 3.8 | 2500 | 6.0*43*65mm | Rectangle |
| 604545 | 3.7 | 1500 | 6.0*45*45mm | Rectangle |
| 605060 | 3.7 | 2100 | 6.0*50*60mm | Rectangle |
| 605080 | 3.7 | 3000 | 6.0*50*80mm | Rectangle |
| 606090 | 3.7 | 4000 | 6.0*60*90mm | Rectangle |
| 6060100 | 3.7 | 5000 | 6.0*60*100mm | Rectangle |
| 621430 | 3.7 | 230 | 6.2*14*30mm | Rectangle |
| 621525 | 3.7 | 220 | 6.2*15*25mm | Rectangle |
| 621665 | 3.7 | 690 | 6.2*16*65mm | Rectangle |
| 622334 | 3.8 | 500 | 6.2*23*34mm | Rectangle |
| 634063 | 3.7 | 1800 | 6.3*40*63mm | Rectangle |
| 651214 | 3.7 | 70 | 6.5*12*14mm | Rectangle |
| 651248 | 3.7 | 330 | 6.5*12*48mm | Rectangle |
| 651313 | 3.7 | 65 | 6.5*13*13mm | Rectangle |
| 651520 | 3.7 | 150 | 6.5*15*20mm | Rectangle |
| 651535 | 3.7 | 300 | 6.5*15*35mm | Rectangle |
| 651665 | 3.7 | 720 | 6.5*16*65mm | Rectangle |
| 651725 | 3.7 | 230 | 6.5*17*25mm | Rectangle |
| 651728 | 3.7 | 240 | 6.5*17*28mm | Rectangle |
| 651730 | 3.7 | 260-5C | 6.5*17*30mm | Rectangle |
| 651730 | 3.7 | 280 | 6.5*17*30mm | Rectangle |
| 651750 | 3.7 | 700 | 6.5*17*50mm | Rectangle |
| 651921 | 3.7 | 230 | 6.5*19*21mm | Rectangle |
| 652025 | 3.7 | 300 | 6.5*20*25mm | Rectangle |
| 652035 | 3.7 | 420 | 6.5*20*35mm | Rectangle |
| 652040 | 3.7 | 520 | 6.5*20*40mm | Rectangle |
| 652432 | 3.7 | 450 | 6.5*24*32mm | Rectangle |
| 652461 | 3.8 | 1250 | 6.5*24*61mm | Rectangle |
| 652530 | 3.7 | 500 | 6.5*25*30mm | Rectangle |
| 652672 | 3.7 | 1300 | 6.5*26*72mm | Rectangle |
| 652728 | 3.7 | 500 | 6.5*27*28mm | Rectangle |
| 652729 | 3.8 | 620 | 6.5*27*29mm | Rectangle |
| 653030 | 3.7 | 680 | 6.5*30*30mm | Rectangle |
| 653040 | 3.7 | 800 | 6.5*30*40mm | Rectangle |
| 653050 | 3.8 | 1250 | 6.5*30*50mm | Rectangle |
| 653237 | 3.7 | 780 | 6.5*32*37mm | Rectangle |
| 653435 | 3.7 | 800 | 6.5*34*35mm | Rectangle |
| 653450 | 3.7 | 1300 | 6.5*34*50mm | Rectangle |
| 654060 | 3.7 | 2000 | 6.5*40*60mm | Rectangle |
| 654065 | 3.7 | 2200 | 6.5*40*65mm | Rectangle |
| 654075 | 3.7 | 2500 | 6.5*40*75mm | Rectangle |
| 655065 | 3.8 | 3400 | 6.5*50*65mm | Rectangle |
| 655065 | 3.7 | 3000 | 6.5*50*65mm | Rectangle |
| 656090 | 3.7 | 5000 | 6.5*60*90mm | Rectangle |
| 671818 | 3.7 | 160 | 6.7*18*18mm | Rectangle |
| 672045 | 3.7 | 600 | 6.7*20*45mm | Rectangle |
| 681345 | 3.7 | 400 | 6.8*13*45mm | Rectangle |
| 681818 | 3.7 | 155 | 6.8*18*18mm | Rectangle |
| 682028 | 3.7 | 380 | 6.8*20*28mm | Rectangle |
| 683048 | 3.7 | 1000 | 6.8*30*48mm | Rectangle |
*Contact us for custom LiPo battery or customize your special battery !
Discover how we helps global customers solve real-world battery challenges through customized lithium battery solutions.
An Italian hotel automation company was developing a rechargeable smart remote controller for guest room lighting, air conditioning, curtain control, and service request functions. The product needed to power a low-power MCU, Bluetooth module, button backlight, LED indicator, and standby circuit. The customer’s previous battery could fit the housing, but the runtime was not strong enough during repeated button activation and Bluetooth pairing tests.
The customer contacted LithoTop because they needed a compact 3.7V rechargeable LiPo battery with stable output, customized wire assembly, reliable PCM protection, and European compliance support. LithoTop reviewed the remote controller’s standby current, Bluetooth activation cycle, backlight load, charging circuit, enclosure space, cable routing, and expected daily usage pattern.
After evaluation, LithoTop recommended the 652530 3.7V 500mAh Rechargeable LiPo Battery. Our engineering team judged that the 500mAh capacity provided a suitable balance between runtime and compact structure, while the pouch cell format helped the customer keep the remote controller slim and comfortable to hold.
During sample development, LithoTop customized the connector type, wire length, cable outlet direction, PCM protection, insulation method, and label format according to the customer’s assembly process. Sample batteries were tested through button activation simulation, Bluetooth pairing cycles, LED backlight testing, standby evaluation, charging compatibility checking, and installation fit validation.
Because the product was planned for European hotel projects, LithoTop also supported CE and RoHS documentation preparation for the battery project. Before mass production, both teams confirmed golden samples, battery dimensions, connector durability, electrical performance, CE and RoHS support documents, packaging requirements, and incoming inspection standards.
The final battery solution helped the smart hotel remote controller achieve longer operating time and more stable wireless performance. For the customer, this reduced charging complaints, improved guest room product reliability, and supported smoother CE and RoHS preparation for European deployment.
A Thai logistics technology company was developing a portable temperature logger for cold chain transportation of fresh food, pharmaceuticals, and laboratory samples. The device needed to power a temperature sensor, memory chip, real-time clock, LED indicator, and periodic wireless data download function. Because the product would be shipped internationally with batteries inside, the customer needed not only stable battery performance but also transport documentation support.
The customer approached LithoTop after testing a smaller battery that reduced product size but could not support the required logging duration. They needed a rechargeable LiPo battery with better runtime, stable standby behavior, customized connector assembly, and UN38.3 and MSDS support for international shipping and customer documentation.
LithoTop analyzed the logger’s sleep-mode current, sampling interval, memory writing load, LED indication cycle, wireless download current, charging method, enclosure space, and shipment requirements. Based on this evaluation, LithoTop recommended the 652530 3.7V 500mAh rechargeable LiPo battery as a compact power solution with improved runtime margin.
During prototype development, LithoTop optimized the PCM protection design, connector position, wire length, insulation layer, and battery label to match the customer’s sealed plastic enclosure. Sample batteries were tested through temperature logging simulation, long standby testing, wireless download pulse testing, voltage stability checking, charge-discharge cycling, storage testing, and installation fit evaluation.
For the customer’s logistics and export plan, LithoTop also supported UN38.3 and MSDS documentation preparation for the battery project. Before pilot production, the customer confirmed approved sample performance, battery dimensions, connector reliability, packaging method, UN38.3 and MSDS documents, and batch inspection requirements.
The final battery solution helped the temperature logger maintain stable operation throughout transportation monitoring cycles. For the customer, this improved data recording reliability, reduced shipping documentation pressure, and supported smoother international delivery for cold chain monitoring projects.
A reliable 652530 rechargeable LiPo battery requires more than a standard cell model. Battery performance depends on capacity consistency, voltage stability, internal resistance control, PCM protection design, connector reliability, cable outlet direction, insulation method, and final aging inspection.
LithoTop supports customers from sample evaluation to mass production with professional engineering support, flexible customization, strict production inspection, and project-based compliance documentation support. Our team can help evaluate battery size, runtime target, charging method, operating current, protection circuit, connector type, NTC requirement, 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.
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.
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.
I often meet teams after swelling complaints appear. The product looks finished, the launch is…
Confusion costs time, money, and reliability. I see teams argue labels. They miss the real…
You ask for a price quote. The supplier sends a number. You compare three quotes…
Get Your Factory-Direct Quote
LithoTop | Battery Expert
Online
Hi! Welcome to LithoTop.
Please send your specs for an instant solution:
1. Dimensions (T*W*L)
2. Voltage & Capacity
3. Peak Current
I'm online to help you now!
— Caroline | LithoTop
WhatsApp Us
Online | Privacy policy
WhatsApp us
Response within 12 hours. Save up to 30% on bulk orders.
🔒 100% Privacy. No Hidden Costs. Free Sample Options.