20000mAh power banks for big speakers or laptops

The fast charging 20000mAh power bank provides superb protection and comes in handy when you and your team members need to use multiple devices for a long time.

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Product Detail

20000mAh power banks for big speakers or laptops


Model No. EML002
Capacity 3.7V,20000mAh
Input Voltage 19V  2A
Output Voltage 5v/12v/16v/19v(optional)
Output Current 2A(5V),4A(12V/16V/19V)
Standard Accessories Adapter--1pcs
Output Cable--1pcs
Laptop connectors---10pcs
Size 198(L)*124(W)*18(H)mm
Weight 650g
Color Black,silver,red,blue,golden
Full charging time 2-3 hours


A portable laptop charger is the ideal companion if you want to charge your laptop while traveling, working remotely, or in an emergency. And it’s not just for laptops: With its built-in AC outlet, it can power other small devices as well, from vibrators and video projectors to breast pumps and baby monitors. It can keep up with MacBook and other high-powered laptops, it’s compact and lightweight, and it charges via USB-C—an increasingly ubiquitous standard.


Dual Output Meets All Charging Needs
For a huge output and for devices to quickly power up, enjoy a combined 2A(5V) ,4A(12V/16V/19V)output that meets the needs of smartphones and tablets. Each of the two iSmart ports provides the optimized charging experience for your device while allowing 5V/2A output per port.

Cuts Your Recharge Time in Half
Nobody likes waiting around to recharge their portable charger. When using a 2A or 4A adapter, the power bank recharges in a speedy 2 to 3 hours. That means you are saving at least 50% on the recharge time compared to using slower 1A adapters.

Thoughtful and Detailed Design
To make things convenient and to minimize tangled wires, all three USB ports are grouped together for easy access.

Trusted Safety and Protection
When dealing with power, safety is paramount. To keep the charger and your devices secure, enjoy four different safeguards, which include voltage surge, over charge/discharge, and high temperature protections.

Product Display:

20000mAh power banks

About Ecsson:

Shenzhen Ecsson Technology Co., Limited, established in 2005, is a high-tech enterprise specialized in the R&D, Production Sale of portable power supplies, solar products, solar waterproof bags solar LED. We have the best technician team the best product designers, we keep cooperating with many laboratories of the colleges universities. We have good accomplishment in the R&D of portable power supplies solar gers. Our portable power supplies are adapted to AC (100V-240V), USB/DC output, Car power Solar. Our products are extensively used in Laptop/Mobile Phones/Tablet PC/GPS Tracker/Advertising Equipment/Portable Printer/Portable Scanner/POS/Cameras. We supply OEM/ODM service for any products, bulk order are welcome. 


Package and shipping:


1. Q: OEM OR ODM accepted?

A: Yes, we can do OEM&ODM. Logo on the power banks or solar panels are available.

2. Q: Do your products have certifications?

A: Yes, We are the assessment supplier by BV and TUV and our products have the certificates of CE, RoHs, FCC, IEC.

3. Q: What is the annual capacity production of your company?

A: Our factory building covers an area of 30,000 quare meters. And the annual output exceeds 80MW.

4. Q: How long is the warranty of your products? How to guarantee the after-sale services?

A: We guarantee most of our products for one year, the solar panel for 3 years .And we will prepare 3‰ to 5‰ accessories for easily damaged parts.

5. Q: Can I get some samples?

A: Yes,of course. We are honored to offer you samples,And usually samples can be ready in 3-5days.

6. Q: How to do if any quality problems on our side in the warranty time ?

A: At First, take pictures or videos as proof and send to us.We will replace new ones for free.

7. Q: What kind of company of yours ?

A: We are a manufacturer with more than 300 employees supplying directly.

8. Q: Still have questions?

A: You can click CONTACT US to send us email with your questions, we will be in contact with you within 24 hours.

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