Description

Price: $69.99 - $44.99
(as of Nov 21, 2025 16:25:30 UTC – Details)

Product description

1 High-Speed 87W

2 65W Fast Recharge

3 20K Power

1 Built-In USB-C

2 Huge Compatibility

1 For Busy Professionals

2 For Every Device

3 For Vacation Charging

Why is my power bank providing fewer charges than expected?

The capacity reduction during charging is due to a 30% to 45% energy loss in the battery cells and conversion circuitry. Therefore, a fully charged Anker A1383 Power Bank (PowerCore 20K) offers an estimated 11,000mAh to14000mAh to power devices.

How can I estimate the number of charges for my device?

To estimate charging cycles, use this formula:

(Power Bank Capacity x 0.65) + Device Battery Capacity ≈ Numberof Charges

For instance, charging a 3,500mAh device using a 20,000mAh povver bank would offer approximately 3.8 charges

How long does it take for the power bank to recharge?

It depends on the charger’s power and the ambient temperature. The A1383 model, when using a 30W PD charger at 77°F (25°C), takes about 4.5 hours to recharge.

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Customer Reviews

4.6 out of 5 stars 4,449

4.6 out of 5 stars 5,158

4.7 out of 5 stars 163

4.6 out of 5 stars 17,914

4.6 out of 5 stars 17,914

4.4 out of 5 stars 15,538

4.1 out of 5 stars 4,165

Price

$44.99$44.99

$87.99$87.99

$159.99$159.99

$29.99$29.99

$19.99$19.99

$74.99$74.99

$139.99$139.99

Main Feature

87W Max Fast Charging

Built-in + Retractable Cables

300W,TurboBoost,AppControl

Built-In C Cable

Built-In C Cable

PD 3.1, Max 140W

GaNPrime PowerCore 200W

Charging Ports

Built-In C Cable + 1C1A

Built-in C Cable*2 + 1C1A

2 USB-C+1 USB-A

Built-in C Cable + 1C

Built-in C Cable + 1C

2 USB-C, 1 USB-A

2xUSB-C, 1xUSB-A

Compatible Devices

iPhone 16/iPhone Serie

iPhone 16/iPhone Serie

MacBook Pro/iPhone 17/and More

iPhone 16/iPhone Serie

iPhone 16/iPhone Serie

iPhone 16/iPhone Serie

iPhone 16/iPhone Serie

Recharging Time

~1.5 Hours

~2 Hours(100w)

～1.06 Hours(134W)

～5.25Hours(20W)

~2.5 Hours(20w)

~1 Hour (140W)

~1.3 Hours (100W)

capacity

20000mAh

25000mAh

26250mAh

20000mAh

10000mAh

24000mAh

20000mAh

Size

6.2 x 2.89 x 1.02 in

6.18 x 1.93 x 2.12 in

6.29×1.49×2.47 in

4.72 × 2.90 × 1.24 in

4.32 × 2.58 × 0.98 in

6.13 x 2.15 x 1.95 in

5.00 × 2.15 × 1.96 in

Weight

0.97lb

1.31lb

1.32lb

0.78lb

0.47lb

1.39lb

1.19lb

87W Power to Share: Distribute 87W across three devices, with a single device receiving up to 65W, to rapidly charge iPhones, Samsung phones. Quickly charge a 14″ MacBook Pro to 50% in under 40 minutes.
Speedy Cable Charging: Utilize the built-in cable to elevate your iPhone 15 Pro to 58% or a MacBook Air to 52% in 30 minutes. You can also fully recharge this power bank in 1.5 hours with a 65W charger.
20,000mAh for Extended Use: Eliminate concerns about battery depletion with a 20,000mAh power bank that ensures consistent, reliable charging for all your devices, also approved for airline travel.
Lasts Longer, Charges Faster: The integrated USB-C cable is designed to endure, withstanding over 10,000 bends for dependable charging and convenient storage.
What You Get: Anker Power Bank (20K, 87W, Built-In USB-C Cable), welcome guide, 18-month warranty, our friendly customer service.