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OtterBox 20,000 mAh Dual Port 18W USB-A & USB-C Portable Power Bank - Black

Producing 20,000mAh, this high-quality USB & USB-C power bank from Otterbox allows you to fast-charge 2 smartphones simultaneously! The LED indicator shows how much charge is left & with 20W power you'll never again miss the moments that matter.
Price: £38.99

RRP £49.99 | 22% OFF

Due in stock in 3-5 days time

We are currently awaiting stock for this item. If an estimated stock date is displayed, please be aware we do everything possible to ensure they are as accurate as possible, however due to circumstances beyond our control - they may be subject to change so please check back regularly for the latest information.

All product stock messages are up to date and as accurate as possible, with delivery times quoted at the checkout remaining accurate also.

These estimated time of arrival dates are constantly looked at and refreshed to ensure that you can purchase with confidence.

Delivery Methods


MethodEstimated Delivery TimePrice
UK Only
Royal Mail 48 Service (Super Saver) 2 to 5 working days From £1.60
Evri Tracked 2-3 Day 2 to 3 working days £2.99
Evri Tracked 1-2 Day 1 to 2 working days £3.99
DPD Tracked Next Working Day  Next working day if ordered before 5pm Monday to Thursday £6.99
International
DHL Global Mail 4 to 10 working days £3.50
DHL International Air Express 1 to 3 working days From £12.95

Delivery Information

  • Fast, same-day despatch when you order by 5pm on weekdays
  • Free no-quibble 30 day return policy
  • One flat delivery price for your order, no matter how many items you buy.
  • For partially in-stock orders you pay for delivery only once. If we have to split your order into 2 separate deliveries, you'll still only be charged for shipping once.

* For Eligible products only.   

Please note

  1. Orders for batteries and power banks may be subject to delays due to dangerous goods shipping requirements.
  2. DPD Next Working Day will only deliver the next day if your order was placed before 5pm Monday to Thursday.
  3. Next day delivery times may be affected during National Bank Holidays.
You can view all of our delivery options, covering the UK and international shipping by visiting our Delivery Information page.

Contactless Delivery

In order to deliver your orders safely, a number of our partners have introduced a minimal contact or contactless delivery service. By doing so both our customers and our delivery partners are kept safe. Click here to see which couriers are able to offer contactless delivery.

International Delivery

View the countries that we ship to here: International shipping

Returns Information

For more information about Shipping, Handling and Returns, please see our Terms & Conditions.

Delivery Information
Producing 20,000mAh, this high-quality USB & USB-C power bank from Otterbox allows you to fast-charge 2 smartphones simultaneously! The LED indicator shows how much charge is left & with 20W power you'll never again miss the moments that matter.
Notify me when the product is in stock

Frequently bought together

Key Features

  • 20,000mAh power boost charges 2 devices at once
  • Supports Power Delivery and Qualcomm Quick Charge
  • Compact and portable design
  • LED indicator and drop protection
  • Built-in USB ports for recharging the power bank
  • Comes with a lightning cable

Be able to effectively and safely charge your device no matter where you are with this drop-protected, lightweight & portable 20,000mAh Power Bank from OtterBox. The sleek, black design blends perfectly with any aesthetic and the compact size is ideal for anyone to take with them in a bag or in a pocket! 

20,000mAh power boost charges two devices at once

Perfect for when your device is on its last legs, the OtterBox Power Bank features an impressive 20,000mAh capacity with an 18W output, enough to provide 2 full chargers to two of your devices at once! This allows you to have a full day out with your friends or family, without having to worry about fighting over whose phone battery is lowest, as both of you can charge at once! 

Works with both USB-A & USB-C cables

As long as your cable is either USB-A or USB-C, your device will be able to safely and effectively charge using this Power Bank, giving complete choice. This means that whether you have a Samsung, Google or Apple device - you will be able to fast charge your device. 

Compact and portable design

The OtterBox Power Bank has been designed with practicality in mind, which makes it ideal to carry around in your pocket or bag for emergency use.

LED indicator and drop protection

Featuring an LED indicator, you'll quickly be able to see how much power is left in the power bank, so you know exactly when you will next need to recharge the Power Bank. OtterBox Fast Charge is a sleek, durable drop-tested battery pack that charges your devices fast.  

Built-in USB port for recharging the power bank

With the built-in USB charging port and provided charging cable - you can simply plug into a computer, laptop or USB mains power adapter when it's time to recharge the OtterBox Power Bank.

Technical Specifications:

  • Battery Capacity: 20,000mAh
  • Charger output current: 18W, 3A
  • Output: USB-C, USB-A
  • USB-C: 18W (5V/3A, 9V/2A, 12V/1.5A)
  • USB-A: 18W (5V/2.4A, 9V/2A, 12V/1.5A)
  • Input: USB-C: 18W (5V/3A, 9V/2A, 12V/1.5A)

Key Details

Part No 78-80642
UPC 0840104212158
Mobile Fun ID 85321
Colour Black
Brand Name OtterBox

All product stock messages are up to date and as accurate as possible, with delivery times quoted at the checkout remaining accurate also.

These estimated time of arrival dates are constantly looked at and refreshed to ensure that you can purchase with confidence.

Delivery Methods


MethodEstimated Delivery TimePrice
UK Only
Royal Mail 48 Service (Super Saver) 2 to 5 working days From £1.60
Evri Tracked 2-3 Day 2 to 3 working days £2.99
Evri Tracked 1-2 Day 1 to 2 working days £3.99
DPD Tracked Next Working Day  Next working day if ordered before 5pm Monday to Thursday £6.99
International
DHL Global Mail 4 to 10 working days £3.50
DHL International Air Express 1 to 3 working days From £12.95

Delivery Information

  • Fast, same-day despatch when you order by 5pm on weekdays
  • Free no-quibble 30 day return policy
  • One flat delivery price for your order, no matter how many items you buy.
  • For partially in-stock orders you pay for delivery only once. If we have to split your order into 2 separate deliveries, you'll still only be charged for shipping once.

* For Eligible products only.   

Please note

  1. Orders for batteries and power banks may be subject to delays due to dangerous goods shipping requirements.
  2. DPD Next Working Day will only deliver the next day if your order was placed before 5pm Monday to Thursday.
  3. Next day delivery times may be affected during National Bank Holidays.
You can view all of our delivery options, covering the UK and international shipping by visiting our Delivery Information page.

Contactless Delivery

In order to deliver your orders safely, a number of our partners have introduced a minimal contact or contactless delivery service. By doing so both our customers and our delivery partners are kept safe. Click here to see which couriers are able to offer contactless delivery.

International Delivery

View the countries that we ship to here: International shipping

Returns Information

For more information about Shipping, Handling and Returns, please see our Terms & Conditions.

Amazon: Fire 7 2017
Apple: Apple MacBook Pro 16'' 2023 M2 Chip, iPad 10.2 2020, iPad 10.2 inch, iPad 10.9" 2022, iPad 9.7 2017, iPad 9.7 2018, iPad Air 2019, iPad Air 4 2020, iPad Air 5 2022 - 5th Generation, iPad Air 6 11" 2024 - 6th Generation, iPad Air 6 13" 2024 - 6th Generation, iPad Mini 2019, iPad Mini 6 2021, iPad Mini 7 2024 - 7th Generation, iPad Pro 10.5, iPad Pro 11 inch, iPad Pro 11" 2022, iPad Pro 11" 2024, iPad Pro 11.0 2020, iPad Pro 11.0 2021 - 3rd Generation, iPad Pro 12.9 2017, iPad Pro 12.9 2018, iPad Pro 12.9 2020, iPad Pro 12.9 2021 - 5th Generation, iPad Pro 12.9" 2022, iPad Pro 13" 2024, iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, iPhone 12, iPhone 12 mini, iPhone 12 Pro, iPhone 12 Pro Max, iPhone 13, iPhone 13 mini, iPhone 13 Pro, iPhone 13 Pro Max, iPhone 14, iPhone 14 Plus, iPhone 14 Pro, iPhone 14 Pro Max, iPhone 15, iPhone 15 Plus, iPhone 15 Pro, iPhone 15 Pro Max, iPhone 5, iPhone 5C, iPhone 5S, iPhone 6, iPhone 6 Plus, iPhone 6S, iPhone 6S Plus, iPhone 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus, iPhone SE, iPhone SE 2018, iPhone SE 2020, iPhone SE 2022, iPhone X, iPhone XR, iPhone XS, iPhone XS Max, Mac Mini, Mac Studio, MacBook Air 13 inch 2022, MacBook Air 13" 2024 M3 Chip, MacBook Air 15" 2023, MacBook Air 15" 2024 M3 Chip, MacBook Air 15.5, MacBook Pro 13 inch 2022 M2 Chip, MacBook Pro 14" 2021, MacBook Pro 14'' 2023 M2 Chip, MacBook Pro 16'' 2023 M3 Chip, Watch SE 2022, Watch Series 8
Barnes & Noble: Nook 7
BLU: Vivo 6
Coolpad: Torino S
Doogee: F5, X5
EE: Hawk
Essential: Phone
Honor: 20, 20 Lite, 20 Pro
Huawei: G9 Plus, Honor 10, Honor 10 Lite, Honor 6A, Honor 6C, Honor 6C Pro, Honor 6S, Honor 6X, Honor 7 Premium, Honor 7A, Honor 7s, Honor 7X, Honor 8, Honor 8 Pro, Honor 8X, Honor 8X Max, Honor 9, Honor 9 Lite, Honor Magic, Honor Play, Honor V8 Max, Honor View 10, Honor View 20, Mate 10, Mate 10 Lite, Mate 10 Pro, Mate 20, Mate 20 Lite, Mate 20 Pro, Mate 20 X, Mate 30, Mate 30 5G, Mate 30 Pro, Mate 9, Mate 9 Lite, Mate 9 Porsche Design, Mate 9 Pro, Mate RS Porsche Design, Mate X, Mate Xs, MediaPad M5 10 Pro, MediaPad M5 Lite, MediaPad T3 7.0, MediaPad T5, Nova, Nova 2, Nova 2 Plus, Nova 4, Nova 5, Nova 5 Pro, Nova 5i, Nova 5i Pro, Nova Plus, P Smart, P Smart 2019, P Smart 2020, P Smart Plus, P Smart Plus 2019, P Smart Pro 2019, P Smart S, P Smart Z, P10, P10 Lite, P10 Plus, P20, P20 Lite, P20 Pro, P30 Lite, P30 Pro, P40, P40 Lite, P40 Lite E, P40 Pro, P40 Pro Plus, P50, P50 Pocket, P50 Pro, P8 Lite 2017, P9 Lite, Y5II, Y6 2018, Y6 II, Y6 Pro 2019, Y7 2018, Y7 Prime 2019, Y7 Pro 2019
LeEco: Le Max 2, Le S3
Meizu: M3 Max, Pro 5, Pro 6, Pro 7, U10, U20
Neffos: C7, X1, X1 Max
Nextbit: Robin
Razer: Phone 2
Realme: GT 2 Pro
Samsung: Book 2 Pro 360, Galaxy A01, Galaxy A02s, Galaxy A03, Galaxy A03 Core, Galaxy A03 US Version, Galaxy A03s, Galaxy A04s, Galaxy A05, Galaxy A05s, Galaxy A10, Galaxy A10e, Galaxy A10s, Galaxy A11, Galaxy A12, Galaxy A13 4G, Galaxy A13 5G, Galaxy A14, Galaxy A15, Galaxy A20, Galaxy A20e, Galaxy A21, Galaxy A21s, Galaxy A22 4G, Galaxy A22 5G, Galaxy A23 5G, Galaxy A24, Galaxy A25 5G, Galaxy A3 2016, Galaxy A3 2017, Galaxy A3 2018, Galaxy A30, Galaxy A30s, Galaxy A31, Galaxy A32 4G, Galaxy A32 5G, Galaxy A34 5G, Galaxy A35 5G, Galaxy A40, Galaxy A40s, Galaxy A41, Galaxy A42 5G, Galaxy A5 2016, Galaxy A5 2017, Galaxy A50, Galaxy A50s, Galaxy A51, Galaxy A51 5G, Galaxy A52, Galaxy A52 5G, Galaxy A52s 5G, Galaxy A53 5G, Galaxy A54 5G, Galaxy A55 5G, Galaxy A6 2018, Galaxy A6 Plus 2018, Galaxy A60, Galaxy A6s, Galaxy A7 2016, Galaxy A7 2017, Galaxy A7 2018, Galaxy A70, Galaxy A70s, Galaxy A71, Galaxy A71 5G, Galaxy A72, Galaxy A72 5G, Galaxy A73, Galaxy A8 2018, Galaxy A8 Plus 2018, Galaxy A80, Galaxy A82 5G, Galaxy A8s, Galaxy A9 2016, Galaxy A9 2018, Galaxy A90 5G, Galaxy Book 2 Pro, Galaxy Book 2 Pro 360, Galaxy Fold, Galaxy J Max, Galaxy J2, Galaxy J3 2017, Galaxy J3 2017 US Version, Galaxy J3 Pro, Galaxy J5 2016, Galaxy J5 2017, Galaxy J5 Prime, Galaxy J6, Galaxy J6 2018, Galaxy J6 Plus, Galaxy J7 2017, Galaxy J7 2018, Galaxy J7 Nxt, Galaxy J7 Prime, Galaxy J8 2018, Galaxy M01, Galaxy M10, Galaxy M11, Galaxy M20, Galaxy M21, Galaxy M23 5G, Galaxy M30, Galaxy M31, Galaxy M33 5G, Galaxy M40, Galaxy Note 10, Galaxy Note 10 Lite, Galaxy Note 10 Plus, Galaxy Note 10 Plus 5G, Galaxy Note 20, Galaxy Note 20 5G, Galaxy Note 20 Ultra, Galaxy Note 5, Galaxy Note 8, Galaxy Note 9, Galaxy Quantum 2, Galaxy S10, Galaxy S10 5G, Galaxy S10 Lite, Galaxy S10 Plus, Galaxy S10e, Galaxy S20, Galaxy S20 FE, Galaxy S20 FE 5G, Galaxy S20 Plus, Galaxy S20 Ultra, Galaxy S21, Galaxy S21 FE, Galaxy S21 Plus, Galaxy S21 Ultra, Galaxy S22, Galaxy S22 Plus, Galaxy S22 Ultra, Galaxy S23, Galaxy S23 FE, Galaxy S23 Plus, Galaxy S23 Ultra, Galaxy S24, Galaxy S24 Plus, Galaxy S24 Ultra, Galaxy S5, Galaxy S6 Edge, Galaxy S7, Galaxy S7 Active, Galaxy S7 Edge, Galaxy S8, Galaxy S8 Active, Galaxy S8 Plus, Galaxy S9, Galaxy S9 Plus, Galaxy Tab A 10.1 2016, Galaxy Tab A 10.1 2019, Galaxy Tab A 10.5, Galaxy Tab A 8.0 2019, Galaxy Tab A7 10.4, Galaxy Tab A7 Lite, Galaxy Tab A9, Galaxy Tab A9 Plus, Galaxy Tab Active 2, Galaxy Tab Active 3, Galaxy Tab S3, Galaxy Tab S4, Galaxy Tab S5e, Galaxy Tab S6, Galaxy Tab S6 Lite, Galaxy Tab S7, Galaxy Tab S7 FE, Galaxy Tab S7 Plus, Galaxy Tab S8, Galaxy Tab S8 Plus, Galaxy Tab S8 Ultra, Galaxy Tab S9, Galaxy Tab S9 FE, Galaxy Tab S9 FE Plus, Galaxy Tab S9 Plus, Galaxy Tab S9 Ultra, Galaxy Watch 6, Galaxy Watch 6 Classic, Galaxy Xcover 4, Galaxy Z Flip 3 5G, Galaxy Z Flip 4, Galaxy Z Flip 5G, Galaxy Z Flip5, Galaxy Z Fold 2 5G, Galaxy Z Fold 3 5G, Galaxy Z Fold 4, Galaxy Z Fold5, J6 Plus, Note 4, Samsung Galaxy A33 5G
Samsung : Galaxy S6
TCL: 30 5G, 30+
Vivo: iQOO, V15 Pro, Y12
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