iPhone 8 Plus has a battery capacity of 2675 mAh – more than any iPhone before it. The phone, along with the iPhone 8, the first Apple iPhone to be fast-charge capable, meaning it can be charged from zero to 50% in just 30 minutes by an 18-watt or more USB-C fast-charger using a USB-C to Lightning cable. For this reason, the best portable chargers for iPhone 8 Plus can fast-charge it super-fast via USB-C PD. Here is our pick of the best fast-charging power banks for the 8 Plus.
Best Premium Slim Fast-charging Power Bank for iPhone 8 Plus
Anker offers some of the best power banks for iPhones. PowerCore Slim 10000 PD is its newest lightweight and premium PD portable charger with a weight of just 6.8 oz (192 grams) and dimensions of 4.5 x 2.0 x 1.0 inches (11.5 x 5.0 x 2.5 cm). PowerCore Slim 10000 PD will fast charge the iPhone 8 Plus from zero to 50% in about 30 minutes.
The 10000 mAh battery capacity of the portable charger will fully charge iPhone 8 Plus more than two times.
18-watt USB-C PD charging feature of the power bank will also charge other latest iPhones including iPhone 11, 11 Pro/Max, 8, X, XR, XS, and XS Max with a USB-C to Lightning cable. It will also fast-charge most latest Android phones (Samsung S10+, S10, S9, all Pixels etc.) from zero to 50% in about 30 minutes. It also supports 2.4 amp (12 watt) charging which enables the power bank to fast charge the older iPhones (6, 6s, 7, 7 Plus) from empty to 50% in about 40 minutes. It will charge older Android phones to the same level in 50-55 minutes.
Any 18-watt or more USB-C PD fast-charger such as Macbook charger or iPad Pro 2020/18 chargers will fully charge the portable charger in about 4 hours. It can also be charged with standard Apple iPhone 8 Plus charger using an USB-A to USB-C cable in 12 hours.

PowerCore Slim 10000 PD has two charging ports – a USB-C port and a regular USB port, which allow it to charge two phones simultaneously without sacrificing the charging speed. For example, it will fast charge the iPhone 8 Plus through the USB-C port and will also fast-charge any older iPhone 6, 6s, 7, 7 Plus, etc. through the other port at its fastest supported charging speed.
Pros
- One of the most lightweight power banks with a weight of just 6.8 oz (200 grams)
- Premium build quality
- Gives iPhone 8 Plus two full charges
- Charges iPhone 8 Plus from zero to 50% in about 30 minutes
- Supports 18-watt USB-C PD, as well as 2.4 amp charging
- 2 charging ports – USB-C and regular USB which enables the power bank to fast charge two devices at once
- Takes 3.5 hours to get recharged by a 18-watt USB-C PD charger
Cons
- No USB-A to USB-C cable provided for charging the power bank directly with iPhone 8 Plus charger.
Best Fast-charging Power Bank for iPhone 8 Plus with Lightning Input (Runner-Up)
Aukey 10000 PD with Lightning + micro-USB + USB-C Input
Aukey 10000 PD with USB-C input (Usually Better Priced and a better choice if you also get a USB-C fast-charger for fast-charging iPhone 8 Plus)
Aukey 10000 PD is Aukey’s a compact future-proof PD portable charger for iPhone 8 Plus that comes with Lightning input, USB-C input, and micro-USB input. This means you can charge it directly with your Apple iPhone 8 Plus phone adapter as well as old micro-USB Android adapters or new USB-C adapters.
The power bank will charge the iPhone 8 Plus from zero to 50% in about 30 minutes. Besides fast-charging the iPhone 8 Plus, Aukey 10000 PD will also fast-charge the other latest iPhones such as iPhone 11, 11 Pro/Max, 8, X, XR, XS, XS Max etc. It will also fast-charge almost all the latest Android phones including the latest Samsung S10, S9, etc. It can fully charge the big-screen iPhones and latest Androids a minimum of two times.
Aukey 10000 PD‘s 10000 mAh battery capacity will charge your iPhone 8 Plus almost three times. The power bank will itself get recharged in just 4 hours from any 18+ watt USB-C fast-charger.

There are three input ports in the Aukey 10000 PD – Lightning port, USB-C port, and micro-USB port and hence it can be charged by either of the three cables- Lightning cable, USB-C cable, or a micro-USB cable. The portable charger also has an inbuilt ‘low current charging mode’ which delivers current less than 60 mA to low battery capacity devices.
Pros
- Charges iPhone 8 Plus almost three times
- 18w USB-C PD fast-charge will give the iPhone 8 Plus zero to 50% charge in about 30 minutes
- Fast charges all the latest iPhones (11, 11 Pro/Max, , 8, X, XR, XS, XS Max etc.)
- Fast charges almost all the latest Android phones (Samsung S10, S9, etc.)
- Supports both 18-watt USB-C PD and QuickCharge 3.0
- Pocket-friendly
- Reasonably priced
- Can be charged by- Lightning cable, micro-USB cable, or USB-C cable
- Low current charging mode
- A USB-A to USB-C cable
- 24-month warranty
Cons
- No USB-C to USB-C cable included in Lightning input version. Aukey 10000 PD with USB-C input comes with a USB-C/USB-C cable.
Best High Capacity Fast-Charging Portable Charger for iPhone 8 Plus & iPads
Aukey 20000 PD is an excellent high capacity fast-charging portable charger for the iPhone 8 Plus. It is an all-rounder power bank as it supports both 18-watt USB-C PD for latest iPhones and QuickCharge 3.0 for latest Android Phones.
It supports 18-watt USB-C PD charging which fast-charges the iPhone 8 Plus from zero to 50% in about 30 minutes. 20000 mAh battery capacity of the Aukey 20000 PD allows it to give the iPhone 8 Plus five full charges!
The power bank has three ports through which it can be charged- Lightning port, USB-C port, and micro-USB port. It will take about 6 hours to get recharged by any 18-watt USB-C PD wall charger. You can also use Macbook USB-C charger or iPad Pro 2020/2018 chargers to fast-charge it.

Aukey 20000 PD has a weight of 14 oz (390 grams) and dimensions of 6.98 x 2.71 x 0.97 inches (17.7 x 6.9 x 2.5 cm). It also has an in-built ‘low current charging mode’ which lowers the current supply when attached to a device that requires current lower than 60 mA.
Pros
- Supports 18-watt USB-C PD, QuickCharge 3.0, as well as 2.4 amp charging
- High battery capacity will give the iPhone 8 Plus five full charges
- Gives zero to 50% charge to the 8 Plus in about 30 minutes
- Fast charges all the latest iPhones (11, 11 Pro/Max, , 8, X, XR, XS, XS Max etc.)
- Also fast-charges all latest Android phones from Samsung S20, S20+ to latest Pixel 4/3
- Three ports to charge the power bank- Lightning Port, USB-C Port, micro-USB port
- Gets recharged in just 6 hours by 18-watt USB-C PD charger and in about 12 hours by the Apple charger for the 8 Plus
- Light at about 14 oz weight
- Low current charging mode for wireless earbuds etc.
- 24-month product replacement warranty
Cons
- No USB-C to USB-C cable included
Best High Capacity Fast-Charging Power Bank for iPhone 8 Plus and Macbooks
RAVPower 20000 45-watt PD is one of the most high-output power banks for iPhone 8 Plus with a maximum PD output of 45-watts. This enables it to charge not just the latest iPhones (11, 11 Pro/Max, 8 Plus, XS, XR, etc.) and Android phones (Samsung S10, S10 Plus, S9, etc.), but Macbook Pro or Macbook Air as well at high charging speeds.
The power bank fast-charges the iPhone 8 Plus via 18-watt USB-C PD at speed of zero to 50% in about 30 minutes. RAVPower 20000 45-watt PD will fully charge your iPhone 8 Plus five times. On full charge, it charges Macbook Air 2018 almost once.
RAVPower 20000 45-watt PD will get fully recharged in about 4 hours by a 30-watt USB-C PD wall charger including Macbook Air or Macbook Pro chargers. It can also be charged via micro-USB port as well.

The two output ports – one USB-C and one regular USB – of RAVPower 20000 45-watt PD allow it to charge two devices at once.
RAVPower 20000 45-watt PD weighs around 14.1 oz (398 grams) and has dimensions of 6.3 x 3.0 x 0.9 inches, which is quite reasonable such a high-capacity portable charger.
Pros
- Upto 45-watt USB-PD fast-charging for Macbooks
- zero to 50% charge for the iPhone 8 Plus (and other latest iPhones) in about 30 minutes.
- 20000 mAh battery capacity will charge the iPhone 8 Plus from zero to 100% five times
- Fast-charges most latest Android phones including Samsung S10, S9, etc. with 18-watt USB-C PD
- Gets fully charged in about 4 hours by any 30-watt USB-C PD wall charger
- Can also be charged by micro-USB
Cons
- Cannot be charged by Apple Lightning cable