onn 20,000 mAh Portable Power Bank, 20 W Output, Two USB-C and One USB-A Ports, Black
onn 20,000 mAh Portable Power Bank, 20 W Output, Two USB-C and One USB-A Ports, Black
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onn 20,000 mAh Portable Power Bank, 20 W Output, Two USB-C and One USB-A Ports, Black

1,157 ratings
onn 20,000 mAh Portable Power Bank, 20 W Output, Two USB-C and One USB-A Ports, Blackonn 20 000 mAh Portable Power Bank Fast Charging Output 20W Dual USB C ports USB port LED Digital Display Black Compatible iPhone iPad AirPods Samsun2 pack onn 20 000 mAh Portable Power Bank Fast Charging Output 20W Dual USB C ports USB port LED Digital Display Black Compatible iPhone iPad AirPods5 pack onn 20 000 mAh Portable Power Bank Fast Charging Output 20W Dual USB C ports USB port LED Digital Display Black Compatible iPhone iPad AirPods
Pack SizeSingle

Key item features

  • Powerful Performance: Delivers 20,000 mAh capacity with 20 W output, perfect for keeping USB-powered devices charged during busy days and travel.
  • Versatile Charging: Equipped with two USB-C ports and one USB-A port, allowing simultaneous charging for up to three smartphones, tablets, or earbuds.
  • Clear Battery Display: An LED digital display instantly shows the remaining battery level, enabling easy power management before heading out.
  • Robust Protection: Features a lithium-ion battery with short-circuit and overcharge protection, ensuring safe and reliable charging for connected gadgets.
  • Compact Design: Measures 4.52 in x 2.75 in x 1.42 in and weighs 0.81 lb, making this black power bank highly portable for daily use.
  • Included Cable: A 1 ft USB-C to USB-C charging cable comes in the box, providing ready-to-use connectivity for compatible USB-C devices.
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Specs

Battery capacity, 20000 mAhWatts, 20 WFeatures, Short Circuit Protection, Overcharge ProtectionWeight, 0.81 lbAccessories, 1ft USB C to C charging cableVolts, 5 V

About this item

Product details

The onn portable power bank keeps your USB-powered devices running on busy days, during travel, and anytime you're away from an outlet. With 20,000 mAh of capacity, it holds backup power to draw on when you need it. Its 20 W output works across two USB-C ports and one USB-A port, so you can charge up to three devices at the same time. An LED digital display lets you check the remaining battery level at a glance, so you know how much power you have left before you head out. A 1 ft USB-C to USB-C charging cable comes in the box, giving you a ready-to-use charging accessory from the start. It's designed for smartphones, tablets, earbuds, and other USB-powered devices.
  • 20,000 mAh capacity with 20 W output
  • Two USB-C ports and one USB-A port for charging up to three devices at the same time
  • LED digital display shows the remaining battery level
  • Includes a 1 ft USB-C to USB-C charging cable in the box
  • Lithium-ion battery with short-circuit protection and overcharge protection
  • Measures 4.52 in x 2.75 in x 1.42 in and weighs 0.81 lb
  • Compatible with smartphones, tablets, earbuds, and other USB-powered devices
  • Color: Black
info:
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.Β Β 

Specifications

Battery capacity

20000 mAh

Watts

20 W

Features

Short Circuit Protection, Overcharge Protection

Weight

0.81 lb

Warnings

Customer ratings & reviews

4.6 out of 5 stars
stars
1,157 ratings215 reviews
Includes global ratings and reviews
How item rating is calculated
  1. 5 stars81% (941)
  2. 4 stars8% (96)
  3. 3 stars4% (44)
  4. 2 stars2% (25)
  5. 1 star4% (51)

Reviews summary

Pros

  • : It charges multiple devices fast and retains charge.
  • : Made of durable materials that can withstand wear and tear.
  • : Holds a substantial amount of power.
  • : Offers high storage at a reasonable cost.
  • : The power bank replenishes devices multiple times and powers accessories.

Cons

  • : May not securely connect to phone or box, affecting charging performance.
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Showing 1-3 of 215 reviews

Oct 18, 2026
Reviewer name: Walmart customer
Top Reviewer
Item details
Multipack quantity: 1
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Love onn charging banks!

so i got this for outtings when my phone or my sons phone is dying and need emergency charge. it didn't disappoint, its powerful, fast charging and can last a long time on multiple charges. sometimes what i do is charge my devices at home using this bc of how much faster it is, or if my wall chargers are just slower than usual. its super convenient, it is a little heavy and bulky but not a problem. highly recommend

Helpful?2SSX9QDITZ4014816903566
Oct 20, 2026
Reviewer name: anonymous
Item details
Multipack quantity: 1
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Great portable charger for everyday use

I just got this portable charger, and I really like it so far. I'm mainly going to use it for work and to keep with me when I'm out, and it's already been really convenient. It charges my phone well, and I like that it's not as big or as heavy as I expected. It's easy to hold and carry around, which is exactly what I wanted. It's also very compact, so I think it'll work really well for charging my phone throughout the day. This would be especially useful for commuters, travelers, students, or anyone who spends a lot of time away from an outlet and wants a lightweight charger that's easy to carry. So far, I'm really happy with it and would definitely recommend it.

Helpful?2SSX9QDITZ4014816903566
Oct 23, 2026
Reviewer name: Michael
Top Reviewer
Item details
Multipack quantity: 1
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Great for travel

This arrived fully charged. I traveled international and kept this in my carry on so I never had to worry about a charge or finding an outlet to plug into. Seems to last long. Never fully drained it.

Helpful?2SSX9QDITZ4014816903566
Current price is $17.88
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