onn. 20000mAh Dual-Port Portable Battery $7.14 Free Shipping w/ Walmart+ (2025)

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forum thread Posted by kun • 12h ago

Item 1 of 4

  1. onn. 20000mAh Dual-Port Portable Battery $7.14 Free Shipping w/ Walmart+ (5)
  2. onn. 20000mAh Dual-Port Portable Battery $7.14 Free Shipping w/ Walmart+ (6)
  3. onn. 20000mAh Dual-Port Portable Battery $7.14 Free Shipping w/ Walmart+ (7)
  4. onn. 20000mAh Dual-Port Portable Battery $7.14 Free Shipping w/ Walmart+ (8)

Item 1 of 4

forum thread Posted by kun • 12h ago

$7.14

$31

76% off

Walmart

10 Comments 1,013 Views

Get Deal at Walmart

Deal Details

https://www.walmart.com/ip/seort/458863902

onn. Dual-Port Portable Battery, 6x Charge, 20000 mAh - Black:

6 Extra charges
20000 mAh capacity
Charge 2 devices at the same time
For Smartphones, Tablets, and other USB-charged devices
Digital charging indicator
Rated capacity: 20000 mAh/3.7V; Actual capacity: 12000 mAh/5V
Over-charge/discharge/voltage/current/ heat and short circuit protection
2 USB charging ports
Input: DC 5V/2A
Output: DC USB 5V/2.4A x2, total 4.8A shared
What's in the box? 1 Dual-Port Portable Battery, 1 Micro-USB charging cable 1 ft (30.5 cm)

Product Info

Community Notes

About the Poster

Deal Details

Product Info

Community Notes

About the Poster

https://www.walmart.com/ip/seort/458863902

onn. Dual-Port Portable Battery, 6x Charge, 20000 mAh - Black:

6 Extra charges
20000 mAh capacity
Charge 2 devices at the same time
For Smartphones, Tablets, and other USB-charged devices
Digital charging indicator
Rated capacity: 20000 mAh/3.7V; Actual capacity: 12000 mAh/5V
Over-charge/discharge/voltage/current/ heat and short circuit protection
2 USB charging ports
Input: DC 5V/2A
Output: DC USB 5V/2.4A x2, total 4.8A shared
What's in the box? 1 Dual-Port Portable Battery, 1 Micro-USB charging cable 1 ft (30.5 cm)

Community Voting

Deal Score

-1

Good Deal

Get Deal at Walmart

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Model: Onn. 20k Blk

Deal History

Deal History includes data from multiple reputable stores, such as Best Buy, Target, and Walmart. The lowest price among stores for a given day is selected as the "Sale Price".

Sale Price does not include sale prices at Amazon unless a deal was posted by a community member.

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      Sort: Lowest to Highest | Last Updated 1/14/2025, 08:28 PM

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      onn. 20000mAh Dual-Port Portable Battery $7.14 Free Shipping w/ Walmart+ (9)Walmart$7.14

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      10 Comments

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      about 13 hours ago

      2,163 Posts

      Joined Oct 2021

      about 13 hours ago

      StrongMoney163

      about 13 hours ago

      2,163 Posts

      lots of happy campers in the reviews

      Pro

      about 13 hours ago

      6,823 Posts

      Joined Jun 2010

      about 13 hours ago

      dep411

      Pro

      about 13 hours ago

      6,823 Posts

      Reviews state it takes days for ut to charge, lol

      about 13 hours ago

      1,725 Posts

      Joined Feb 2021

      about 13 hours ago

      nyc10036

      about 13 hours ago

      1,725 Posts

      Quote from dep411 :

      Reviews state it takes days for ut to charge, lol

      Days is probably an exaggeration, but it is 10W so definitely not "fast" charging.

      2

      Pro

      about 13 hours ago

      3,121 Posts

      Joined Mar 2006

      about 13 hours ago

      eduardmc

      Pro

      about 13 hours ago

      3,121 Posts

      For $7 we can do much worse. Ordered thanx

      about 12 hours ago

      510 Posts

      Joined Jan 2006

      about 12 hours ago

      jericoholics

      about 12 hours ago

      510 Posts

      Was looking for a powerbank to power my travel router for Asia. Probably cheaper to get it delivered to me than getting it there.

      about 10 hours ago

      645 Posts

      Joined Aug 2023

      about 10 hours ago

      PowerfulName4771

      about 10 hours ago

      645 Posts

      Quote from StrongMoney163 :

      lots of happy campers in the reviews


      Is that serious or an exaggeration? I saw many poor reviews.

      1

      Pro

      about 10 hours ago

      252 Posts

      Joined Dec 2023

      about 10 hours ago

      FrugalForever

      Pro

      about 10 hours ago

      252 Posts

      This has been dropping in price constantly since last couple of weeks ($9.xx -> $8.24 -> $7.14 now). This is not the fastest and latest (micro USB seems like another era now) powerbanks out there but for this price point, it can fit some of the use cases like powering on a RPi for a portable IOT device or as a UPS for a router (if it supports pass through charging - I have ordered it myself to test this) etc.

      Sign up for a Slickdeals account to remove this ad.

      about 10 hours ago

      645 Posts

      Joined Aug 2023

      about 10 hours ago

      PowerfulName4771

      about 10 hours ago

      645 Posts

      Quote from FrugalForever :

      This has been dropping in price constantly since last couple of weeks ($9.xx -> $8.24 -> $7.14 now). This is not the fastest and latest (micro USB seems like another era now) powerbanks out there but for this price point, it can fit some of the use cases like powering on a RPi for a portable IOT device or as a UPS for a router (if it supports pass through charging - I have ordered it myself to test this) etc.

      How would this be connected to a router to supply power? Most routers have their own DC based power plug.

      1

      Pro

      about 9 hours ago

      252 Posts

      Joined Dec 2023

      about 9 hours ago

      FrugalForever

      Pro

      about 9 hours ago

      252 Posts

      Quote from PowerfulName4771 :

      How would this be connected to a router to supply power? Most routers have their own DC based power plug.


      If it allows for pass through charging, then the router can be powered using this powerbank with the help of a USB to DC port cable if you have one or can be bought separately.

      That is definitely an added cost but in my case I already have a couple of those which I use for making my Amazon Echo devices portable (also being powered by a powerbank but a larger wattage one). So YMMV.

      An example of such cable is this: https://a.co/d/gclYUfO

      Fun fact: The Amazon listing for the above cable says that it cannot power an Amazon device but I am using it for the same from last one year without any issues.

      Last edited by FrugalForever January 14, 2025 at 04:51 PM.

      about 3 hours ago

      645 Posts

      Joined Aug 2023

      about 3 hours ago

      PowerfulName4771

      about 3 hours ago

      645 Posts

      Quote from FrugalForever :

      If it allows for pass through charging, then the router can be powered using this powerbank with the help of a USB to DC port cable if you have one or can be bought separately.

      That is definitely an added cost but in my case I already have a couple of those which I use for making my Amazon Echo devices portable (also being powered by a powerbank but a larger wattage one). So YMMV.

      An example of such cable is this: https://a.co/d/gclYUfO

      Fun fact: The Amazon listing for the above cable says that it cannot power an Amazon device but I am using it for the same from last one year without any issues.

      Thanks for the reply. Makes sense.
      However, the USB ports of this powerbank are 5V Maximum. Won't a router need at least 10V DC? In that case how will these ports supply enough power?

      Finally what is the reason for powering with a power bank? Is it only because doing so would result in usage if power goes out?

      1

      onn. 20000mAh Dual-Port Portable Battery $7.14 Free Shipping w/ Walmart+ (2025)
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