Black FridayDealsBuying guidesBrandsStoresTermsPrivacydeal.ai apps

© Deal.ai Inc.

Deal.ai › Jiumess
Jiumess
Jiumess 20000mAh Power Bank Portable Charger with Cables

Jiumess 20000mAh Power Bank Portable Charger with Cables

3.7· 884 ratings

Best price now

$15.85at WalmartObserved at 8:52 AM

Compared across 4 stores. Prices are checked against each store and labelled with when.

Visit Walmart

Ask our agent about this product

It checks today's price at every store, compares the alternatives and answers in about a minute.

Enter to send, Shift+Enter for a new line

Our take on the Jiumess 20000mAh Power Bank Portable Charger with Cables

The Jiumess 20000mAh Power Bank is a plastic portable charger with four built-in cables (USB-C, Lightning, Micro USB and USB-A) and an LED display that shows remaining charge. It tops out at 5V/2.1A, so it charges phones at standard speed rather than the higher wattages fast-charging phones can take. It weighs about 0.5 lbs and measures roughly 4.6 x 2.2 x 0.6 inches. At $15.85 at Walmart as of November 5, 2026, it sits at the low end of its recent range, which is typical for a budget 20,000mAh pack.

Best forShoppers who want one cheap pack for a mixed iPhone and Android householdTravelers who would rather not pack separate cablesStudents and commuters topping up a phone on the goEmergency backup for a phone or earbuds
Pros
  • Four built-in cables cover USB-C, Lightning, Micro USB and USB-A
  • 20,000mAh capacity is enough for several phone charges
  • LED display shows remaining battery instead of four vague dots
  • Around 0.5 lbs, light for its capacity
  • Low price at $15.85 at Walmart as of November 5, 2026
Cons
  • 5V/2.1A output is slow by current standards; no USB-C Power Delivery
  • Built-in cables are short and can't be replaced if one breaks
  • Plastic body with no water resistance rating
  • No wireless charging and no pass-through charging station
  • No wall charger included, only the built-in cables

Jiumess 20000mAh Power Bank Portable Charger with Cables prices at every store

  • MercariPre-owned

    In stock

    $10.45Observed at 8:52 AM
    Visit store
  • PoshmarkPre-owned

    In stock

    $11.00Observed at 8:52 AM
    Visit store
  • WalmartNew

    In stockSold by JIUMESS

    $15.85Observed at 8:52 AM
    Visit store
  • eBayPre-owned

    In stock

    $18.90Observed at 8:52 AM
    Visit store
  • eBayNew

    In stock

    $28.95Observed at 8:52 AM
    Visit store

Also available at

  • Brands For Less USACheck price at Brands For Less USA

Jiumess 20000mAh Power Bank Portable Charger with Cables price history

Lowest price we've seen: $15.85 on Nov 5 at Walmart. Tracked across 3 stores since Nov 5.

What reviewers say

With 3.7 out of 5 from 884 ratings, owners see it as a cheap, convenient backup pack rather than a fast charger. The built-in cables and LED display draw the most praise; slow charging and cable durability draw the most complaints.

Pros
  • Convenience of never needing to bring a cable
  • LED percentage display is easy to read
  • Holds enough charge for multiple phone top-ups
  • Good value for the price
Cons
  • Charges phones slowly, especially larger phones
  • Built-in cables feel flimsy and one failing limits the pack
  • Heavier and bulkier than expected in a pocket
  • Some units report lower real capacity than 20,000mAh

Specifications

Compatible Brand
iPhone, Android
Compatible Device Type
Tablets, Bluetooth headsets, Cell Phone, Smartphones
Connector Type
USB C, IOS Cable, Micro USB
With Battery Pack
Yes
Charging Technology
Fast Charging
Maximum Output
5V/2.1A
Output Voltage
5 V
USB Port
1 micro USB input port
Power Cord Included
No (You don't need to carry charging cables)
Cable Included
Yes (with 4 cables), Yes (built-in 4 charging cables)
Cable Type
USB C, IOS Cable, Micro USB
Cable Highlights
Built-in
Dimensions
4.62.20.6 in
Material
Plastic
Weight
0.5 lbs
Design Highlights
Portable charger, LED power display
Theme
Travel
Fast Charging
Yes
Wireless Charging
No
Charging Station
No
Solar Charging
No
With USB Port
Yes
With Stand
No
With Belt Clip
No

Questions and answers

Is the Jiumess 20000mAh power bank worth it?
At $15.85 at Walmart as of November 5, 2026, it is a reasonable buy if you want a cheap backup pack with cables built in. If you need fast charging for a modern phone, spend more on a USB-C Power Delivery pack.
How fast does it charge a phone?
Output is capped at 5V/2.1A, roughly 10.5W. That is standard charging speed, not fast charging, so a large phone will take a couple of hours or more.
Which cables are built in?
It has four built-in cables: USB-C, Lightning for iPhone, Micro USB and USB-A. You do not need to carry separate cables, but the cables are short and cannot be swapped out.
Can it charge a tablet or laptop?
It can charge tablets and other USB devices slowly at 5V/2.1A. It will not power a USB-C laptop that needs higher voltage.
How many times can it recharge a phone?
A 20,000mAh pack typically gives a phone three to five full charges, depending on the phone's battery size and charging losses. Expect fewer if you charge two devices at once.
When is it cheapest?
Budget power banks like this one usually dip during Black Friday and back-to-school sales. The current $15.85 at Walmart is already near the bottom of its recent range.
Where is the Jiumess 20000mAh Power Bank Portable Charger with Cables cheapest?
At Walmart, for $15.85, as of our latest check.
What do buyers say about the Jiumess 20000mAh Power Bank Portable Charger with Cables?
Rated 3.7 out of 5 from 884 ratings.
Where can I buy the Jiumess 20000mAh Power Bank Portable Charger with Cables?
5 stores we checked sell it, including Mercari, Poshmark, eBay, Walmart, Brands For Less USA.

More from Jiumess

  • J
    JIUMESS Motion Video Game Console for TV
    JIUMESS Motion Video Game Console for TV
  • J
    Jiumess 42800mAh Solar Power Bank
    Jiumess 42800mAh Solar Power Bank
  • J
    Jiumess 42800mAh Solar Power Bank 15W Fast Charging
    Jiumess 42800mAh Solar Power Bank 15W Fast Charging
All Jiumess deals and products →