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FAQs
Ufine의 11.1V 1200mAh 리튬 배터리로 안정적인 전력 공급
짧은 배터리 수명이나 충전 문제로 끊임없이 어려움을 겪고 계신가요? 기기가 최악의 순간에 제대로 작동하지 않으면 정말 답답합니다. 다행히 Ufine의 11.1V 1200mAh 리튬 배터리가 진정한 해결책을 제시합니다. Ufine의 11.1V 1200mAh 리튬 배터리는 뛰어난 전력과 오래 지속되는 성능을 제공하여 사용자의 요구를 충족하도록 설계되었습니다. 첨단 기기에 전원을 공급하거나 안정적인 백업 전원이 필요한 경우, 이 배터리는 갑작스러운 전력 감소나 사용 시간 제한에 대한 걱정 없이 안정적인 에너지를 제공합니다.

Test Curves of 3S LiPo Battery
Take a closer look at the 3S LiPo battery test curves—see the stability and performance you can trust for all your power needs!
- Discharge Rate
- Long Cycle Life
- Wide Temperature Range
- Ultra-Low Self-Discharge

3S Battery Long Life
Lithium batteries exhibit varying discharge rates. Ufine's batteries support a maximum discharge rate of 5.0C,delivering high power output in short durations.
- Ufine's 3S Lipo battery maintains over 80% capacity after 500 cycles
- utilizing 0.5C charge and discharge conditions
- The discharge rate directly affects the battery's power output capacity and performance under high load.

3S Battery Long Life
Ufine's lithium battery maintains over 80% capacity after 500 cycles at room temperature,utilizing 0.5C charge and discharge conditions.
- Ufine's 3S Lipo battery maintains over 80% capacity after 500 cycles
- utilizing 0.5C charge and discharge conditions
- The discharge rate directly affects the battery's power output capacity and performance under high load.

3S Battery Long Life
Lithium batteries operate within the -20°C to 60°C discharge temperature range. Ufine's custom low-temperature batteries can be used for -40°C to 55°C operation, catering to diverse outdoor scenarios
- Ufine's 3S Lipo battery maintains over 80% capacity after 500 cycles
- utilizing 0.5C charge and discharge conditions
- The discharge rate directly affects the battery's power output capacity and performance under high load.

3S Battery Long Life
Batteries exhibit differential self-discharge rates at 100% and 70% charge states. Self-discharge is higher at 100% state of charge (SOC) compared to 70% SOC.
- Ufine's 3S Lipo battery maintains over 80% capacity after 500 cycles
- utilizing 0.5C charge and discharge conditions
- The discharge rate directly affects the battery's power output capacity and performance under high load.
Multi-Layer Protection in Every Charge
Trust in Ufine's advanced battery protection features, and never compromise on safety!
Low self-discharge rate
At Ufine, we understand that safety and reliability are just as important as performance when it comes to batteries. That's why we've designed our 3S LiPo batteries with multi-layer protection, ensuring your battery stays safe through every charge. With the right protection features in place, you can trust that your battery will perform optimally, while reducing the risk of damage or malfunction.
Here are the protective functions you'll find in our 3S LiPo batteries:
- Overcharge Protection
- Over-discharge Protection
- Short Circuit Protection
- Temperature Protection

Quality You Can Trust
Your trust matters to us. That's why Ufine Battery uses only the finest materials and cutting-edge processes to ensure unbeatable quality.
View more production details 



Other Battery VS Ufine Battery
Why Choose Ufine Battery? See How We Stand Out from the Rest!
Our Battery
- Custom 16340 Battery Pack, MOQ 100 pcs
- Custom Samples as fast as 3 Days
- Strict Quality Control, No Safety Concerns Ever
- Instant Customer Support, Solve Any Problem in Time.
- Low self-discharge rate and low impedance rate
- High energy density and light weight
- Custom Battery Size: Starting 0.5mm Thickness
- Battery Temperature from -40°C-85°C
Other Battery
- Why Choose Ufine Battery? See How We Stand Out from the Rest!
- Custom Samples as fast as 3 Days
- Strict Quality Control, No Safety Concerns Ever
- Instant Customer Support, Solve Any Problem in Time.
What We Custom and How
At Ufine, we know that one size doesn't fit all, especially when it comes to battery needs. That's why we specialize in custom battery solutions.
What
- Low self-discharge rate and low impedance rate
- High energy density and light weight
- Custom Battery Size: Starting 0.5mm Thickness
- Battery Temperature from -40°C~85°C
- Custom Connector: JST/Molex/Hirose/Anderson/TE/Amphenol Etc
How
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01Low self-discharge rate and low impedance rate
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02High energy density and light weight
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03Custom Battery Size: Starting 0.5mm Thickness
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04Battery Temperature from -40°C–85°C
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05Custom Connector: JST/Molex/Hirose/Anderson/TE/Amphenol Etc
배터리 사양
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1. 기계적 특성
Cell 503533 PCM No NTC No Weight appr. 9.39g Configuration 1S1P -
2. Electrical Specification
Capacity 500mAh Nominal Voltage 3.7V Energy 1.85Wh Internal Resistance less than 180mΩ Max. Charge Voltage 4.2V Discharge Cut Off 2.75V Max. Charge Current 500mA Max. Discharge Current 500mA Standard Charge Current 250mA Standard Discharge Current 250mA Charging Temperature 0℃ to 45℃ Discharging Temperature -20℃ to 60℃ Storage Temp.Range 1 year at -20℃ to +30℃ 3 mos. at -20℃ to +45℃ 1 mo. at -20℃ to +60℃ Cycle life 100 cycles ≥92% 300 cycles ≥88% 500 cycles ≥80% -
3. Cell protection
Overcharge Detection No Overdischarge Detection No Overcurrent Detection No Short protection No
D형 배터리에 대한 완벽한 가이드
기기용 배터리를 선택할 때 크기, 에너지 출력, 신뢰성과 같은 요소는 중요한 고려 사항입니다. 다양한 산업 분야에서 인기를 얻고 있는 배터리 유형 중 하나는 D형 충전식 리튬 폴리머(LiPo) 배터리입니다. 특히, Ufine Battery의 503533 D형 배터리는 컴팩트한 사이즈에도 뛰어난 성능을 제공하여 웨어러블 기기, 의료 장비, GPS 시스템, 블루투스 기기 등에 적합합니다.
Part 1. Conventional Circular Battery Types
Circular batteries have long been the go-to option for devices requiring compact and reliable power sources. These small round batteries come in various chemistries and sizes, with lithium polymer (LiPo) and lithium-ion being the most common for high-energy applications. Circular batteries are commonly used in wearable technology, hearing aids, smartwatches, fitness trackers, and wireless earphones due to their small footprint and efficient energy storage.
Although circular batteries are popular, their shapes are not always ideal for every device. This is where shaped batteries, such as the D-shape battery, offer an advantage. The 503533 D-shaped rechargeable LiPo battery by Ufine Battery brings the benefits of a small round battery with the added advantage of a more versatile design that fits well in a variety of devices.
1 C size batteries

Note: Before purchasing, check your motorcycle's battery compartment dimensions to avoid compatibility issues.
What is battery voltage, and why does it matter?
Battery voltage measures the electrical potential difference between its terminals. It determines compatibility with devices—too high can damage them, while too low may cause poor performance or failure.
Can I use a higher-voltage battery in device if it fits?
No! Higher voltage can overload circuits. Always match the device's specified voltage (e.g., using 12V in a 9V device risks damage).
What’s the difference between nominal and actual voltage?
- Nominal voltage is the standard rating (e.g., 3.7V for lithium-ion).
- Nominal voltage is the standard rating (e.g., 3.7V for lithium-ion).
Visit your nearest Interstate All Battery Center for a long-lasting trolling motor battery out of a wide-ranging selection of marine batteries.
FIND A LOCATIONAA Battery
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Electrolyte
Uses a polymer gel electrolyte instead of a liquid electrolyte.
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Energy Density
High energy density, allowing for compact and lightweight designs.
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Power Density
High power output, suitable for devices with high current demands.
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Cycle Life
Good cycle life, but can degrade faster than LiFePO4 batteries.
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Cycle Life
Good cycle life, but can degrade faster than LiFePO4 batteries.222222
AAA Battery
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Chemistry
Uses Lithium Iron Phosphate as the cathode material.
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Weight
Generally heavier than LiPo batteries.
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Power Density
Lower energy density compared to LiPo batteries.
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Cycle Life
Excellent cycle life, can withstand many charge-discharge cycles with minimal capacity loss.

Best 1000mAh Lithium Ion Battery Pack
Ufine is a leading polymer lithium-ion battery cell manufacturer, specializing in the production of 1000mAh 7.4 V lithium-ion batteries.
- Provides a robust 7.4 V output, suitable for devices requiring higher voltage specifications for efficient performance.
- Offers substantial power capacity, ensuring prolonged usage durations ideal for devices demanding sustained power.
Enquiry and Design
Contact us with requirements. The technical team creates tailored designs.
Sampling and Sample Testing
Receive customized battery samples for evaluation within two days.
Confirmation and Production
Finalize specifications, sign the production contract, and pay a 30% deposit.
Delivery and Shipping
Make final payment, and arrange safe and efficient delivery.
Part 2. D-Shaped Battery: Size and Lightness
One of the standout features of the 503533 D-shaped battery is its compact D-shape design, which is highly suited for devices that require a power source that doesn’t take up too much space but can still provide substantial energy output. At 5.0mm thickness, 35mm width, and 33mm length, this battery is perfect for devices like smartwatches, wearable medical devices, and Bluetooth accessories. Its size ensures that your device maintains a sleek profile without sacrificing performance.
At just 9 grams, this battery is lightweight, making it ideal for wearables and portable gadgets where weight is a concern. Whether you’re designing a fitness tracker or a wireless earbud, the D-shape battery is an excellent choice when you need a compact and lightweight power solution.
Part 3. Advantages of Rechargeable Lithium Polymer Batteries
Lithium polymer batteries come with several distinct advantages over other types of rechargeable batteries. One of the primary benefits is their lightweight nature, which is crucial for portable and wearable devices. Additionally, lithium polymer batteries can be shaped and molded to fit specific designs, allowing for flexibility in product development.
The 503533 D-shaped battery offers a nominal voltage of 3.7V and a capacity of 500mAh, ensuring reliable and long-lasting power. The battery’s charging voltage is 4.2V, and it supports charging currents of 0.5C to 1C, making it efficient for use in small devices that require consistent energy over time. Furthermore, the 300 cycle life guarantees a long service life, meaning the battery can be recharged many times without a significant loss in performance.
Part 4. Need to Customize Small Round Batteries for Your Device?
Each device has unique power needs. Ufine Battery, a professional lithium battery manufacturer, specializes in customizing small round batteries and shaped batteries for various applications. Whether you need a different voltage, size, or capacity, Ufine Battery can tailor the LiPo battery to fit your exact specifications.
Customizing your battery ensures that your device operates efficiently and meets the power demands without unnecessary bulk or weight. Reach out to Ufine Battery today for a consultation and let us help you design the perfect battery solution for your application.
Part 5. How Long Can a 503533 Circular D-Shaped Battery Run?
The 503533 D-shaped LiPo battery provides excellent energy efficiency, and the 500mAh capacity makes it ideal for small devices. To estimate how long this battery can run, let’s look at some examples:
Smartwatch: A typical smartwatch draws about 100mA of current when in active mode. Using the formula for runtime, we can calculate the approximate duration:
Runtime (hours)=Capacity (mAh)/Current (mA)=500mAh/100mA=5hours
This means a 503533 D-shaped battery would power a smartwatch for around 5 hours of continuous use.
Bluetooth Earbuds: Wireless earbuds typically use about 50mA of current while operating.
Runtime (hours)=500mAh/50mA=10hours
In this case, the battery would provide approximately 10 hours of use.
If your device demands a longer runtime, Ufine Battery offers the option to customize the battery’s capacity to meet your needs. We can increase the capacity to deliver more energy, ensuring your device stays powered for extended periods.
Part 6. Can This Circular Battery Be Used in Extreme Temperatures?
Yes, the 503533 D-shaped LiPo battery is designed to function effectively in a wide range of temperatures. It has a discharge temperature range of -20°C to 60°C, making it suitable for use in outdoor devices, medical equipment, and wearable tech that may be exposed to harsh environmental conditions. The charge temperature range of 0°C to 45°C ensures safe and efficient charging in varying conditions.
Whether your device is used in cold climates, hot outdoor environments, or in extreme temperature conditions, the 503533 D-shaped battery will perform reliably without compromising the device’s functionality.
Part 7. Circular Battery Connector
When designing devices powered by circular batteries, the connector type is a crucial factor. Circular battery connectors come in various types, including pin, JST, and FPC connectors. These connectors ensure that the battery integrates smoothly into the device, allowing for secure and efficient power delivery.
At Ufine Battery, we understand the importance of a proper connection. We offer customizable connectors to suit your device’s needs, ensuring that the 503533 D-shaped battery integrates seamlessly with your product. Our expert team is ready to collaborate with you to provide the perfect connector solution for your application.
Part 8. Circular Battery Charger
The 503533 D-shaped LiPo battery requires a specific type of charger to ensure safe and efficient charging. For this battery, a LiPo battery charger with a charging voltage of 4.2V and the appropriate current rating (typically 0.5C to 1C) is necessary. Using the correct charger ensures that the battery is charged properly, preventing overcharging and maximizing its lifespan.
At Ufine Battery, we can also assist with providing custom charging solutions, including recommendations on chargers that are compatible with your D-shaped battery.
Need a custom battery solution? Contact Ufine Battery today for more information on the 503533 D-shaped battery or any of our other tailored battery options.
What is battery voltage, and why does it matter?
Battery voltage measures the electrical potential difference between its terminals. It determines compatibility with devices—too high can damage them, while too low may cause poor performance or failure.
Can I use a higher-voltage battery in device if it fits?
No! Higher voltage can overload circuits. Always match the device's specified voltage (e.g., using 12V in a 9V device risks damage).
What’s the difference between nominal and actual voltage?
- Nominal voltage is the standard rating (e.g., 3.7V for lithium-ion).
- Nominal voltage is the standard rating (e.g., 3.7V for lithium-ion).
리튬 배터리를 특정 용도에 맞게 맞춤 제작할 수 있나요?
기기에 가장 적합한 리튬 배터리를 찾고 계신가요? 저희가 올바른 방향을 제시하고 기기의 잠재력을 극대화할 수 있도록 도와드리겠습니다.
문의하기고객 후기
고객님의 소중한 의견을 기다립니다! 고객님의 경험은 저희가 발전하고 다른 고객들에게 영감을 주는 데 큰 도움이 됩니다. 만족하신 고객분들이 저희 배터리에 대해 어떻게 평가하시는지 확인해 보세요. 여러분의 의견도 공유해 주세요!