Unitech Energy System Limited
                                                                                                           
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Since 1999
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18650 Battery Pack | NMC Custom Lithium Battery Packs 5V 14.8Wh 4000mAh Rechargeable for Heated Clothing | UN38.3 China Manufacturer

Price Negotiable
Price: Negotiable
MOQ: 200 packs
Delivery Time: 20 days
Brand: Unitech
Product Description

18650 Battery Pack | NMC Custom Lithium Battery Packs 5V 14.8Wh 4000mAh Rechargeable for Heated Clothing | UN38.3 China Manufacturer

 

Heated Jacket Battery Pack Product Specification
 
Custom Lithium Ion Battery Pack
Product Name Custom 5V 4000mAh rechargeable battery for heated clothing
Nominal Voltage 5 V (Customized 3.2V 3.7V 12V 24V 36V... 72V)
Nominal Capacity 4000 mAH (Customized 2.6Ah, 3.5Ah...200Ah)
Standard Charge Current 800 mA
Max Charge Current 2000 mA
Charge Cut-off Voltage 4.2 V
Standard Discharge Current 800 mA
Max Cont Discharge Current 4000 mA
Discharge Cut-off Voltage 2.75 V
Material NMC battery ( or LiFePO4 battery, ​Lithium Cobalt battery )
Cell/ Brand Sony ( or Sumsung, Samsung,Sanyp, UnitechLIPO )
Cell Type li ion 18650 battery( or Custom Lithium Ion battery )
Temperature Range Charge temperature: 0°C to 45°C
Discharge temperature: -20°C to 60℃
Storage temperature: -10°C to 50℃
Life Cycle More than 500 cycles
Package Material Shrinked PVC
Certification IEC 62133, UN38.3, MSDS, KC, CB, UL2054
OEM/ODM Acceptable, based on client's needs
 

 

Stable 5V Output
Delivers a steady 5V/2.1A output, compatible with most USB-powered devices like heated jackets, gloves, and small electronics.


Reliable 4000mAh Capacity
Built-in 4000mAh lithium-ion cells (14.8Wh) provide long-lasting power for daily use, perfect for extended outdoor activities.


Fast Charging Support
5V/2.0A input enables quick charging, reducing downtime and keeping your devices powered up faster.


Safety Certified
Compliant with CE and FCC standards, featuring built-in protection against over-charging, over-discharging, and short circuits for safe use.


Compact & Portable Design
The slim, lightweight black housing is easy to carry and fits discreetly in pockets or clothing, ideal for portable applications.

 

Package:

 

One pc in a PE bag, and then in a standard export carton or Custom-made Package.

 

Delivery Methods:
① By express UPS/DHL/FEDEX/TNT (It takes 3-5 days to arrive).
② By airfreight (It takes about 3~7 days to arrive) .
③ By sea shipment (It takes about 35 days to arrive).

 

Delivery Time: 3-5 days for samples, 8-20 days for mass production, depend on the QTY.

 

 

Why choose Unitech:


1. Unitech original factory can provide competitive factory price
2. Long warranty up to 12 months
3. OEM/ODM is acceptable, base on client's needs
4. Fast delivery, ship goods on time
5. Use famous brand A grade 18650 battery cell
6. Optional chargers available
7. With advanced BMS (Battery Management System)

Customized:
Capacity: 10Ah, 15Ah, 17.5Ah, 20Ah, 23Ah, 30Ah, 50Ah, 100Ah, 200Ah...
Voltage: 12V, 24V, 36V, 48V, 51.2V, 72V
Combination: 4S2P/ 10S6P/10S8P/12S8P/16S8P/13S10P
Battery function: BMS, bluetooth, CANBUS, RS485, display, ect

 

 

 

Company Information:

 
Established Year: 1999 (More than 20 years)
Office: ShenZhen, GuangDong China
Production: DongGuan,GuangDong China
Type of company: Sino-Japanese joint venture
R&D members: 46
Production employee: 500 (full-time)
Activity: R&D Design, Manufacture,and Sales of custom batteries
Certificate: ISO 9001:2008, ISO14000: 2004,UL, CB, KC, PSE, 3C, CE, FCC, UN38.3, RoHS
Mainly Products: Lithium Polymer Battery, Lithium Ion Battery, LiFePO4 battery,NI-MH battery and relative battery pack assembly
Mainly Customers: Ansmann, General Electronics, NTT, Huawei, Energizer etc.
 

We provide one-stop battery power solution, including cell selection, battery pack design, PCM/BMS design, battery pack assembly, OEM Packing and after sales service.

 

 
FAQ
 
1. Q: Do you test all the goods before delivery?
A: Yes, we have our own testing lab and all the goods will be 100% testing before delivery.
 

2. Q: How to customize?
A: Please provide your detailed requirements, such as voltage, capacity, dimension, charge and max discharge current, and other function requirements, etc. Our engineers will help you to evaluate the suitable solution and quotation base on your needs.

 

 

3. Q: Do you offer power solution?
A: We offer one-stop power solutions that based on client's needs, including pack design/ external case design/ BMS design, which saves your design time and cost for customers.

 

4. Q: What's your warranty for products?
A: We offer 2 years warranty for all our battery pack, we ensure at least 2000 cycle life for the LiFePO4 battery pack, which means after 2000@80% DOD, there will still around 60% capacity left, you can use it at least 5 years for normal 1 time charge and discharge everyday.

 

 

5. Q:Can I get a lower price if I order large quantities?
A:Yes, lower prices with more bigger size orders.

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Company Unitech Energy System Limited
Contact Person Olinda

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