Factory Outlet Li Ion Battery Pack for Portable Energy Storage with CE CB UL 3.7V 4000mAh 5000mAh 21700 Battery Pack

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Basic Information

Model NO.

18650 21700 14500

Rechargeable

Chargeable

Accessories Type

Battery

Rated Capacity

>1000MAH

Standard Voltage

3.7V-4.2V

Electrolyte

Li-ion

Cycle Life

≥80% Capacity After 800 Times

Warranty

7-15 days

Temperature Range

-40℃ to +85℃

HS Code

8507600090

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Technical Specification

Product Name	Lithium Battery Pack
Application Fields	AI robots, unmanned aircraft, portable power sources, power tools, household appliances, consumer electronics, electric vehicles, solar energy storage systems, UPS.
Voltage	3.7V, 7.4V, 11.1V, 12V, 24V, 36V, 48V (Support customization)
Model Number	OEM battery pack
Size	1S 2S 3S 4S 6S 8S, etc. 18650/21700/26650/32650/32700
Cycle Life	≥80% capacity after 1000 times
Advantages	High energy density, pollution-free, long lifespan, no memory effect, low self-discharge rate, lightweight.
Custom Project Support	3D Drawing, BMS Design, Waterproof, High/Low temperature tolerance, High rate discharge.

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Product Description

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Factory Equipment

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Company Profile

Established in 2012, the manufacturer is a high-tech enterprise integrating research, development, design, and production of lithium batteries. The facility spans 20,000 square meters with over 200 dedicated employees across multiple business divisions specialized in PACK and polymer cell production.

The company operates under ISO 9001:2015 quality management systems. All products have achieved international certifications including UL, IEC62133, CE, KC, PSE, UN38.3, MSDS, REACH, and ROHS from professional global agencies.

Our battery solutions are widely utilized in high-end fields such as smart cards, medical devices, intelligent robotics, drones, digital consumer electronics, smart home systems, wearables, and energy storage solutions.

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Frequently Asked Questions

Q1: Can I place a sample order? A: Sure, we accept sample orders to test and confirm our quality before a bulk purchase.

Q2: Do you have a Minimum Order Quantity (MOQ)? A: We don't have a strict MOQ, but larger orders generally benefit from lower per-unit pricing.

Q3: Is custom logo and branding available? A: Yes, we provide custom logo services and branding for the battery covers and packaging.

Q4: What is the typical delivery time? A: Sample orders take 1-3 days, while mass production typically takes 10-20 days depending on specifications.

Q5: Do you provide necessary documentation for shipment? A: Yes, we provide all required documentation including MSDS, UN38.3, and other special files needed for regional compliance.

Q6: What about after-sale service? A: We offer comprehensive after-sale support. If any faulty goods are identified, we will provide positive solutions immediately.