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20000mAh Portable Power Bank Charger External Battery


31 in stock


  • Battery Type: Li-polymer Battery
  • Features: Digital Display
  • Output Interface: Double USB
  • Output Interface: USB-Type C
  • Certification: CE
  • Origin: CN(Origin)
  • Input Interface: Micro Usb
  • Input Interface: USB Type C
  • Input Interface: Lighting
  • Shell Material: Plastic
  • Type: Portable Power Bank
  • Support Quick Charge Technology: Two-way Quick Charge
  • Max Input: 18W
  • Color: White
  • Type: Power Bank/External Battery Pack/Portable Charger
  • Model: ROMOSS SW20 Pro
  • Rated Energy: 74Wh/3.7V
  • Certification: FCC/CE/RoHs
  • Capacity: 20000mAh
  • Transform Rate: About 85%
  • Support: PD QC 3.0 Two-way Fast Charging
  • Input (of Apple): 5V/2.1A
  • Input (Micro USB): 5V 2A or 9V 2A
  • Input (Type- C): 5V 2A or 9V 2A
  • Output USB 1: 5V 2.1A
  • Output USB 2: 5V 3A Or 9V 2A Or 12V 1.5A
  • Output (Type-c): 5V 3A Or 9V 2A Or 12V 1.5A
  • Compatible Model 1: External Battery Pack For Xiaomi For Samsung
  • Compatible Model 2: Power Bank For iPhone X Xs XR Xs Max 7 8 6 6s Plus
  • Wholesale / Dropshipping: Support
  • With Cable: No

20000mAh ROMOSS SW20 Pro Portable Power Bank Charger External Battery PD 3.0 Fast Charging With LED Display For Phones Tablet

Package Details
1 x ROMOSS SW20 Pro 20000mAh power bank with retail box
1 X Use Manual

Features :
Capacity : 20000mAh
Output :
5V 2.1A
5V 3A or 9V 2A or 12V 1.5A
5V 3A or 9V 2A or 12V 1.5A
Input :
5V 2.1A (for lightning)
5V 2A or 9V 2A (for Micro USB)
5V 2A or 9V 2A

Specifications :
Size: L168.5*81.2*H23.8MM
Color: White
Weight : About 463g

Notice : For first use, please drain up the power bank to 0 before charging it to 100% to activate the digital LED screen.

For smooth customs clearance, customers from Korea who buy ROMOSS power bank, please leave your Clearance Code(P+12 digits, such as P123456789235) when you place the order. Do not worry about that we will not disclose your information.

【20000mAh Large Capacity】

Work with all of iPhone/iPad/Tablets,other cell phones and electronic devices.It can charge about 8.4 times for iPhone 8,about 4.8 times for Samsung Galaxy S8,about 1.8 times for iPad Pro.20000mAh Large Capacity Suitable for everyday using,traveling,camping or other outdoor activities.What’s more you can use it in your garden,for your USB appliances,like string light.

【18W Two-way Quick Charge】

It only takes about 7 hours to fully recharge the 20,000mAh power bank with a 18W wall charger. Charges QC-support devices up to 50% in just 30 minutes, 2.5 times faster than conventional chargers.(Note: 18W wall charger is NOT included.)

【3-Input & 3-Output】

3-input: Micro-USB, lighting and Type-C provides high convenience of recharging this power bank with any of these 3 widely used cables. 3-Output: 3 USB outputs enable to charge a mobile phone, a tablet or for Nintendo Switch simultaneously at maximum speed up to 3 amps.

【Exactly Display】

This portable power bank has a full-view LED display, it presents available battery percentage exactly and it can show the current and voltage as well.Ensures easy check and accurate battery capacity.

【Allowed On-Board Flight】

With built-in polymer cells are complaint with Civil Aviation Standards are allowed on aboard flight without any safety concerns.

【Quality Assurance & Certified Safe】

Our Li-Polymer batteries adhere to the highest safety and quality standards.Automatically adjust the output power to deliver the optimal charging current keep your devices from overcharging, over-current, over-voltage and short circuit.

As an original ROMOSS quick charge power bank, for the first time, please use it up(totally to 0%), then recharge it to 100% (No interruption is allowed during charging). After that, if you continuously and quickly press the power button 3 times, you will see a picture on the screen. If your picture is EXACT the same as above, your power bank can work normally from now on.

SKU: 20000mah-portable-power-bank-charger-external-battery Categories: , ,

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Vendor Information

  • Store Name: Oyawi
  • Vendor: Oyawi
  • Address: 710 chruchill rd
    edmond, OK 73034
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