Best 20000mah Power Banks

PowerBank Guide is reader-supported. When you buy through links on our site, we may earn an affiliate commission.

20000mah power banks offer large battery capacity for charging phones, iPads, and even Macbooks and laptops while still being portable and TSA-approved for flights. Good 20000 mah portable chargers weigh just around 13-14 oz (about 360 grams) and are perfect for travel for extended periods. Such power banks even come with USB-C PD and 30 or 45-watt USB-C PD output allowing you to charge Macbooks, chromebooks, and laptops very fast.

Here is our selection of the best 20000mah power banks for a wide type of intended use cases –

Best 20000 mah power bank for fast-charging iPhones and iPads (USB-C PD, with Lightning Input)

Best 20000 mah power bank for fast-charging  Samsung phones – S10, S10+, S9/S8/S7

Best 20000 mah power bank for iPhones, iPads, and Macbooks (45-watt USB-C PD 3.0)

Best Value for Money 20000 mah power bank for iPhones, Samsung phones, and other Android phones

Best QuickCharge 3.0 20000 mah power bank

Lightest 20000 mah power bank

Best 20000mah Portable Charger for fast-charging iPhones, iPads, Pixels and Samsung Phones (18-watt USB-C PD, with extra Lightning Input)

Aukey 20000 PD

18-watt PD Lightning input 20000mah power bank
Aukey 20000 USB-C PD is a sleek 18-watt USB-C PD 20000mah power bank

Aukey 20000 USB-C PD is one of our top favorite 20000mah power banks due to its incredible and extensive selection of features and flexibility. This power bank will fast charge almost all latest smartphones in the market – latest iPhones 11, 11 Pro, 11 Pro Max, XS/XR/8 etc., Samsung S10, S10+/S9, Pixel 3/3 XL, LG G8/V40 etc. This is because it supports both of the most popular fast-charging technologies used today – 18-watt USB-C PD and Quickcharge 3.0.

The portable charger will fast-charge latest Samsung phones S10/S10+/S9/S8/S7, latest iPhones 11/11 Pro, XR/XS/X/8, all Pixels etc. from about zero to 50% in 30 mins. Please note that to fast-charge the latest iPhones 11 series, XR/XS/Max/X/8/8+ from zero to 50% in 30 mins, all you need is a USB-C to Lightning cable.

The power bank will fully charge all these phones minimum four times (S10+ and S10 5G gets charged 3.5 times as it has a much bigger battery of 4100 mah).

The portable charger itself can be fully charged from empty in about 6 hours using any USB-C PD charger (or Macbook chargers).  One of the most incredible features of Aukey 20000 USB-C PD is that it can be charged with any of the three ports – USB-C port, Apple Lightning port, or micro-USB port. This ensures that no matter which phone charger you have, you can use it to charge the Aukey 20000 USB-C PD without any extra new cable.

Aukey 20000 USB-C PD is a sleek robust power bank with a narrow and long design and 13.5 oz or 390 grams weight. Its build quality is noticeably better than Aukey’s older 20000mah PD power bank.

What We Like

  • Zero to 50% in 30 minutes PD fast charging for latest iPhone 11, 11 Pro/Max, XR/XS/XS Max, X, 8, 8 Plus
  • Lightning input lets you use Apple iPhone and iPad chargers to directly charge the power bank
  • Zero to 50% in about 30 minutes for Samsung phones – Galaxy S10, S10+, S10e, S9, S9+, S8, S8+,S7, S7 Edge, S6, Note 9, 8, Note 5 etc.
  • Full Quickcharge 3.0 support for fast-charging QC 3.0 phones such as LG G8/G7/V40/V30 etc. – zero to 80% in 35 minutes
  • Fast charges all Pixels including 3/3XL/3a/3a XL at fastest speed and gets charged in 6 hours with Pixel charger
  • Fast charges latest iPads – mini 5, iPad Pro 2018, Air 3
  • Also supports low-power charging mode (<60mA) for devices such as Bluetooth headsets etc.
  • Can be charged in 3 ways  – via Lightning input, USB-C input or micro-USB input!
  • 14 oz (400 gm) weight is good for 20000mah power bank
  • The portable charger gets fully charged in just 6 hours with any USB-C PD charger or Macbook chargers.
  • Sturdily built

What We Do not like

  • Comes with a USB-A to USB-C cable. No USB-C to USB-C cable included

Best 20000 mah power bank for fast-charging Samsung phones – S10, S10+, S9/S8/S7, Note 9/8

Anker PowerCore II 20000

Fast-charging 20000 mah powerbank
PowerCore II 20000 is a fast-charging 20000 mah portable charger, best for Samsung phones

Anker PowerCore II 20000 is a perfect 20000mah power bank for fast-charging the latest Samsung S series and Note series phones. The PowerCore II 20000 supports 15-watt Samsung Adaptive F-Charging and charges Samsung phones such as Galaxy S10, S10+, S10e, S9, S9+, S8, S8+,S7, S7 Edge, S6, Note 9, Note 8, Note 5 etc. as fast as the Samsung power adaptor. The charging speed is about zero to 50% in 30-35 minutes.

PowerCore II 20000  will fully charge all these phones minimum four times (S8/S9/S7 get charged 4.5 times). The S10+, S10 5G, and Note 9 can be charged about 3.5 times as they have much bigger batteries.

What We Like

  • Zero to 50% in about 30 minutes for Samsung phones including the latest Galaxy S10, S10+, S10e, S9, S9+, S8, S8+,S7, S7 Edge, S6, Note 9, 8, Note 5 etc.
  • Also charges all iPhones zero to 50% in 40-50 minutes via 2.4 amp charging
  • Gets charged in 5 hours with Samsung phone chargers or any Quickcharge charger
  • 13.8 oz (380 gram) weight is excellent for a 20000mah power bank
  • Robust build with grippy outer surface

What We Do not like

  • No USB-A to USB-C cable included

Best High-Output 20000mah Portable Charger for Macbooks, Laptops, iPhones, iPads, Samsung/Androids (45-watt USB-C PD 3.0)

RAVPower 20000 45-watt PD

RAVPower 20000 45-watt PD is one of the highest output USB-C PD power banks in the market with an output of 45-watt that makes it perfect for charging MacBooks, and USB-C PD laptops such as Dell XPS 13/15 etc.

The power bank is especially useful for charging MacBook Air and Macbook Pro at 45-watt charging speeds RAVPower 20000 45-watt PD portable charger has adequate capacity to charge a Macbook Air nearly once.

This PD power bank will also fast-charge all PD smartphones available today including the latest iPhones XS, XR, X, 8, 8+, Samsung S10, S10+, S10e, S9+, S9, Note 10, Note 9, and Google Pixel 3 XL, 3 etc. It charges all the latest PD phones at charging speed of zero to 50% in 30 minutes.

What We Like

  • 45-watt USB-C PD 3.0 output charges Macbook Air, Macbook Pro, Dell XPS 13/15 laptops, chromebooks
  • Zero to 50% in 30 minutes PD fast charging for latest iPhone 11, 11 Pro/Max, XR/XS/XS Max, X, 8, 8 Plus
  • Zero to 50% in about 30 minutes for Samsung phones – Galaxy S10, S10+, S10e, S9, S9+, S8, S8+,S7, S7 Edge, S6, Note 9, 8, Note 5 etc.
  • Fast charges all Pixels including 4/4 XL3/3XL/3a/3a XL at fastest speed
  • Charges Macbook Air 2018 almost once
  • Also fast charges new iPads – mini 5, iPad Pro 2018, Air 3
  • Can be charged in two ways  – via 30-watt USB-C PD chargers or Macbook chargers in 4 hrs or micro-USB input in 12 hrs!
  • USB-C to USB-C cable included
  • Sturdily built

What We Do not like

  • 1 pound weight (450 grams)

Best Value for Money 20000mah power bank for iPhones, Samsung phones, and other Android phones

EasyAcc 20000 and EasyAcc 20000 USB-C 

EasyAcc 20000 and EasyAcc 20000 USB-C are excellent value for money power banks and come with as many as 4 charging ports and some really unique features.

EasyAcc 20000 has 4 regular USB charging ports and two micro-USB ports for charging the power bank. The power bank can deliver maximum 2.4 amps per port and has a 4.8 amp combined output. This means you can either charge four phones at once at regular charging speed (1 amp) or charge two phones simultaneously at 2.4 amp fast charging speed.

EasyAcc 20000 will charge all iPhones at twice the speed of Apple iPhone charger (zero to 50% in 30 mins for iPhone 8/7/6s) and it charges Android phones at zero to 50% in 50-60 minutes (2.4 amps max).

EasyAcc 20000 USB-C is one step up from the plain vanilla EasyAcc 20000 and features USB-C input for charging the power bank with the USB-C chargers that comes with most Android phones these days and USB-C output for charging USB-C phones.

EasyAcc 20000 USB-C  has four 4 charging ports – Three regular USB + one USB-C port. It also has two input ports – one USB-C input port and a micro-USB charging port.

EasyAcc 20000  What We Like

  • Very reasonable price for a good quality heavy duty 4-port fast-charging portable charger
  • Fast charges all iPhones including latest iPhone XR/XS/XS Max, X, 8, 8 Plus from zero to 50% in 40-50 minutes or twice as fast as Apple iPhone original chargers
  • Zero to 50% in about 50-60 minutes for Samsung phones – Galaxy S10, S10+, S10e, S9, S9+, S8, S8+,S7, S7 Edge, S6, Note 9, 8, Note 5 etc.
  • Can be charged fast via dual micro-USB input. Gets charged in 6 hours with dual micro-USB input
  • 4 charging ports!- Four regular USB ports
  • 4.8 amp maximum output lets you charge at least 2 devices at fastest speed simultaneously
  • 13 oz (380 gm) weight
  • Excellent compatibility with portable solar chargers

What We Do not like

  • None

EasyAcc 20000 USB-C  What We Like

  • Very reasonable price for a good quality heavy duty 4-port Samsung S/Note fast-charging portable charger with USB-C charging support
  • Zero to 50% in about 30 minutes for Samsung phones – Galaxy S10, S10+, S10e, S9, S9+, S8, S8+,S7, S7 Edge, S6, Note 9, 8, Note 5 etc.
  • Fast charges all iPhones including latest iPhone 11, 11 Pro/Max, XR/XS/XS Max, X, 8, 8 Plus from zero to 50% in 40-50 minutes or twice as fast as Apple iPhone original chargers
  • Can be charged in two ways  – via USB-C input or micro-USB input. So you can use the USB-C power adaptor that comes with Samsung S10/S9/S7 etc to charge powerbank directly
  • The portable charger gets fully charged in just 6 hours with any USB-C PD charger or Macbook chargers.
  • 4 charging ports!- Three regular USB + one USB-C
  • 6 amp maximum output lets you charge at least 3 devices simultaneously
  • 13 oz (380 gm) weight
  • Comes with a USB-A to USB-C cable
  • Reliable dependable power bank

What We Do not like

  • None

Best QuickCharge 3.0 20000 mah Portable Chargers

 RAVPower 20000 Quickcharge 3.0 & Anker PowerCore 20000 Speed

What We Like

  • Zero to 50% in about 30 minutes for Quickcharge 3.0 phones – LG G8, G7, G6, V50, V40, V30 ,V20 etc.
  • Zero to 50% in about 30 minutes for Samsung phones – Galaxy S10, S10+, S10e, S9, S9+, S8, S8+,S7, S7 Edge, S6, Note 9, 8, Note 5 etc.
  • Also charge all iPhones at twice the speed (2 amps) of Apple iPhone stock chargers (1 amp)
  • Gets charged in just 5-6 hours with Quickcharge chargers or Samsung S/Note phone chargers
  • RAVPower 20000 Quickcharge 3.0 can be charged via either USB-C or micro-USB input
  • 12.8 oz (370 gm) weight of Anker PowerCore Speed is best in class for 20000mah power bank
  • Excellent build quality

What We Do not like

  • No USB-A to USB-C cables included

Lightest 20000mah Portable Charger for iPhones, iPads and Android phones

Anker PowerCore 20000

20000mah power bank for iPhones
PowerCore 2000 weighs just 12.6 oz (356 grams) 

Anker PowerCore 20000 What We Like

  • Zero to 50% in 40-50 minutes charging for all iphones including latest iPhone XR/XS/XS Max, X, 8, 8 Plus
  • Zero to 50% in about 50-60 minutes for Android phones including Samsung phones – Galaxy S10, S10+, S10e, S9, S9+, S8, S8+,S7, S7 Edge, S6, Note 9, 8, Note 5 etc.
  • 12.6 oz (360 gram) is lightest for any premium 20000mah power bank
  • Compact sleek build – most compact in class

Anker PowerCore 20000 What We Do not like

  • The portable charger takes minimum 10-12 hours to charge with most Android phone chargers and almost 20+ hours with Apple stock iPhone chargers.

Leave a Reply

Your email address will not be published. Required fields are marked *