As the CEO of Ufine New Energy, I am proud to offer our high-quality custom battery solutions for a variety of needs, including our UFX 103450-2P 4000mAh 3.7V lithium-ion and lithium-polymer battery packs for speakers. Our team of experts is dedicated to understanding your unique requirements and providing a battery solution that is tailored to meet your specific needs.
With 15 years of exporting experience, we have gained a reputation for providing efficient and customized battery solutions. Our batteries are designed with the latest technology and undergo rigorous testing to ensure optimum performance and reliability. Trust us to provide efficient and reliable battery solutions for all your needs, including your speaker. Visit our website at ufinebattery.com to learn more about our products and services, including our 3.7V batteries, lithium ion rechargeable batteries, and lipo batteries.
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1、Mechanical Characteristics |
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Cell: |
UFX103450 |
PCM: |
Yes |
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NTC: |
No |
Weight: |
appr. 55g |
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Configuration: |
1S2P |
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| 2、Electrical Specification | |||
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Capacity: |
4000mAh |
Nominal Voltage: |
3.7V |
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Energy: |
14.8Wh |
Internal Impedance： |
less than 100mΩ |
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Max. Charge Voltage: |
4.2V |
Discharge Cut Off: |
2.75V |
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Max. Charge Current: |
2000mA |
Max. Discharge Current: |
2000mA |
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Standard Charge Current: |
800mA |
Standard Discharge Current: |
800mA |
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Charge Temp. Range: |
10°C to 45°C |
Discharge Temp. Range |
-20°C to 60°C |
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Storage Temp. Range |
1 year at -20℃ to +30℃ |
Cycle life: |
100 cycles ≥92% |
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3 moths at -20℃ to +45℃ |
300 cycles ≥88% | ||
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1 month at -20℃ to +60℃ |
500 cycles ≥80% |
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3、Cell protection |
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Overcharge Detection ： |
4.28 ±25mV (1 to 1.6sec delay, release 4.2V ±50mV) |
Overdischarge Detection： |
2.5V ±50mV (115 to 175msec. delay, release 3.0V ±50mV) |
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Overcurrent Detection： |
2.5A to 4.0A (9 to 15msec. delay) |
Short protection： |
Yes |
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4、Discharge Rate Characteristics |
4、Cycle life Characteristics |
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Product Details
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Why Choose Ufine to OEM or ODM Battery
UFine battery has over 30 professional engineers and technical staff who can provide polymer lithium battery solutions for you. As a lithium battery manufacturer, we are capable of rapid design, customization, and bulk production. Here are the main characteristics of our company:
1、Source manufacturer, strong factory, and powerful design and development capabilities.
2、Short delivery time and sufficient inventory.
