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3.7V Rechargeable 18650 Li-ion Battery Pack
Nominal Voltage: 3.7V
Configuration: 1S
Core Cell: Standard 18650 Grade A cell
Application: LED lighting, Bluetooth speaker, mini fan, monitoring equipment, small consumer electronics
Product Introduction
BRAND: USPECIAL
Model: P181S1P12
Battery Model: 18650 lithium battery
Discharge voltage: 3.7V
Charging voltage: 4.2V
Battery pack capacity: 1.5-30Ah(customizable)
Output current: 0.5-30A(customizable)
Cycle Life: ≥ 300
Charging temperature: 0-45 ℃
Discharge temperature: -20-60 ℃
Storage temperature: -20-25 ℃
Protection board: customizable (overcharge, overdischarge, overcurrent, short circuit, temperature control)
Combined group mode: single or 1 series of multiple parallel
Output terminal: customized according to requirements
Battery Pack Features
1. Reliable power supply :A class lithium-ion battery can cycle up to 800 times.
2. Multi-functional design: the li ion power battery pack can be customized in series and parallel for smooth integration.
3. Safety certification: through MSDS/UN38.3 certification to ensure product safety.
4. Wide temperature range: charging temperature 0-45 ℃, discharge temperature -20-60 ℃.
5. Shelf life: Shelf life is one year, suitable for long-term use.
6. Widely used: It is suitable for Power systems, household appliances, golf carts, electric scooters, electric bicycles, used cars, etc.
Battery Pack Applications
Our Advantages
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In-House Manufacturing
We operate our own production lines, giving us full control over every stage — from battery cell production to final pack assembly.
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Strong R&D Capabilities
We invest heavily in innovation — particularly in BMS technology — striving for higher precision, smarter algorithms, and enhanced safety features.
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High Production Efficiency
We maintain a daily output of over 5,000 battery packs, offering both small-batch flexibility and large-scale efficiency.
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Tailored Customization
We provide fully customized solutions — adjusting voltage, capacity, interfaces, and overall design based on your specific application.
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Rigorous Quality Control
All products go through multiple inspections and reliability tests, ensuring they meet international standards and perform dependably in the field.
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Reliable After-Sales Support
We ensure our battery packs operate safely and reliably, giving you peace of mind well beyond delivery.
FAQS
We are a professional li ion power battery pack manufacturer from China, the factory is in Anhui Province, China, welcome to visit and factory inspection.
Of course, we support printing your logo, you can contact the customer service and send the logo file, we will make a rendering for your reference.
We will choose the 18650 cell model according to your needs, and consider the compatibility cost of different models.
Of course, please contact customer service and put forward your sample requirements, we will make samples for you according to your requirements and send.
Our general MOQ is 100, if there are other special customization requirements according to the actual situation to agree.
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Contact us to get free quotation & battery solution.



