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Portable 20000mAh power bank for laptop with screen display emergency battery charger power bank

FOB Price: US $20 - 39.5 / Piece Get Latest Price
Min.Order Quantity: 100 Piece/Pieces
Supply Ability: 100000 Piece/Pieces per Month
Port: shenzhen
Payment Terms: T/T,Western Union,MoneyGram,Paypal/Escow
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Quick Details

Place of Origin:
Guangdong China (Mainland)
Brand Name:
For laptop
Model Number:
Socket Type:
Charge Time:
Output rate:
DC Output:
9V-12V(limit 2.0A) 16V-19V(limit 4.5A)
DC Input:
for laptop,tablet pc,cellphone
cicyle life:
Up to 500 times
Transformation Rate:
up 80%
Type of battery:

Packaging & Delivery

Packaging Detail: Retailer packaging,Blister packaging,and other customize packaging
Delivery Detail: 3-7days


Power Bank
1.Portable Light weight
2.Overcharging prevention
3.slim power bank

Power bank Description

1.Suitable for: Laptop ,Tablet pc,Mobile Phone, PDA, iPhone, PSP, MP3/MP4, digital camera etc. 

2.Internal battery type: Plolymer battery cell 
3.Stocking temperature: -20C~ 48C 
4. USB output with optional tips; 
5.In line with hardware testing standards   


                                                                                             20000mAh  power bank for laptop 

Type of batteryPolymer1.High quality LCD light indicators,save the energy,No flicker 2.cicyle life Up to 500 times                     3.Convinient for you carry,best gift for festival 4.Packging list include 1power bank,1adapter,10 connectors, 1brochure,universal packaging.
Transformation Rate≥80%
Charge Time8 hours
MaterialAluminum metal


USB portDual
Weightabout 600g


Photos of Power bank




Our payment are T/T,Western Union,Money Gram,Paypal,etc.



1. The products will be shipped by UPS/DHL/FEDEX, which will take 4-5 work days for delivery.

2. Item will be shipped out within 3-5 business days after we received the payment.

3. Please note that we are unable to take any responsibilities for any customs delay or tax. But we often take your orders as gifts/accessories/samples with low value so that you can avoid some taxes. So when you place your orders, please tell us your local customs, then you will be requested to pay import taxes. We will do all we can do as to your request to be your best supplier.


About Us


SENMEI TECHNOLOGY CO.,LIMITED founded in 2006,which specialized in electronic products including power bank,usb flash drive,memory card and usb car charger.As an audited supplier of the SGS group,we focus on quality control and pay attention to each opinion from our customers. With many years of experience in research, development and selling,we successfully cooperated with hundreds clients from all around the world and established long-term relationship with them.


Our  advantage

1. We have 7 year's experience in mobile phone accessories, like power bank, car charger for phones and data cable.

2. Manufacturer supply with high quality and best price.

3. Certification with CE ROHS FCC.

4. ODM available, you can get the model you want




1. No refunds are offered. Only defective goods are offered exchange within 1 month since goods delivered

2. All items required exchange or fully refund should be returned back to us with the original package and no signs of 

    abuse or damage, we will issue refunds or exchange after receiving the returned items

3. All unauthorized returns will not be accepted.


Why choose us?


1.We have a professional series of tests.

2.Our products pass the test of Specialist Agency.

3.We have our own factory.

Verified Information

This information was Verified by Bureau Veritas and is valid for the following period: 2014/02/28 --- 2015/02/27
The information below covers both the Gold Supplier and its related companies, which are defined according to china laws and regulations, and which will also be clearly displayed in the full report >>

The competitive advantage of product line:

Our car charger and power bank are hot selling in Eastern Asia and South America and our engineering department can provide ODM service as any of your requirement.

Production Capacity:

Product Line Name Production Line Capacity Actual Units Produced(Previous Year)
Car Charger/Power Bank N/A

Export Market Distribution:

Market Revenue(Previous Year) Total Revenue (%)
South America confidential 10.0
Eastern Europe confidential 40.0
Eastern Asia confidential 20.0
South Asia confidential 30.0

Real Case for Lower MOQ:

Products Name MOQ(in the last 12month)
Car charger 100 Pieces
Power bank 100 Pieces

Real Case for Large Contract:

Products Name Order(in the last 12month)
Confidential confidential

Short Lead Time:

Products Name Order(in the last 12month) Shortest Lead Time
Car charger 100 Pieces 2 Days
Power bank 100 Pieces 5 Days
Not exactly what you want? 1 request,multiple quotations Get Quotations Now >>
Our company, founded in 2006, is specialized in electronic products including power bank, USB flash drive, memory card and USB car charger. As an audited supplier of SGS group, we focus on quality control and pay attention to each opinion from our customers. With many years of experience in the research, development and sales, we successfully cooperate with hundreds of clients from all around the world and establish long-term relationships with them.

Our factory, situated in Guangming ... View detail

Basic Information Indicates information has been verified onsite by a certification specialist

Product/Service (We Sell): Car charger/power bank (Oversea sales),Bluetooth headset  
Number of Employees: 11 - 50 People  

Trade & Market

Main Markets: South America
Eastern Asia
South Asia
Eastern Europe
Total Annual Sales Volume: US$10 Million - US$50 Million  
Export Percentage: 41% - 50%  

Factory Information

Factory Size (Sq.meters): 1,000-3,000 square meters  
Factory Location: Block 5,Binhaimingzhu industrial park,Gongming,Guangming new district,ShenZhen,China  
Number of Production Lines: Above 10  
Number of R&D Staff: 11 - 20 People  
Number of QC Staff: 5 - 10 People  
Contract Manufacturing: OEM Service Offered   Design Service Offered   Buyer Label Offered  

Supplier Assessment Report

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China (Mainland) | Contact Details
Key Strengths: Assessment Report by Bureau Veritas
Top 3 Markets: Eastern Europe 40.00%, South Asia 24.00%, Eastern Asia 22.00%
Experience: Established 2011 , 3 years OEM

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Mr. Able Zhang
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