Slickdeals is community-supported.  We may get paid by brands for deals, including promoted items.
Heads up, this deal has expired. Want to create a deal alert for this item?
expiredNavy-Wife | Staff posted Jan 13, 2026 03:39 PM
  1. Deal Image
Item 1 of 7
  1. Deal Image
  2. Deal Image
  3. Deal Image
  4. Deal Image
Item 1 of 7
expiredNavy-Wife | Staff posted Jan 13, 2026 03:39 PM

CUKTECH 20000mAh 45W Power Bank w/ Built-in USB-C Cable (Black)

$16

$30

46% off
Amazon
146 Comments 73,646 Views
Visit Amazon
Good Deal
Save
Share
Deal Details
Update: This popular deal is still available.

CUKTECH Direct via Amazon has Cuktech 20000mAh 45W Power Bank w/ Built-In USB-C Cable (Black) on sale for $20.39 - 20% off when you apply promo code CUKTECH20 at checkout = $16.31. Shipping is free with Prime or on $35+ orders.

Thanks to Deal Hunter Navy-Wife for finding this deal.
  • Note: Promo codes are typically for one-time use and don't always apply seamlessly. If you run into this issue, refresh the page, re-enter the code, or revisit the cart page.
About this Item:
  • 45W Max Super Fast Charging: Delivers up to 45W output; charges Galaxy S24 Ultra to 50% in ~20 minutes; compatible with iPhone 16/15 Pro Max, MacBook Air, etc.
  • Built-in Durable USB-C Cable: Integrated 45W fast-charging cable (10,000+ bend tested) doubles as a carrying strap – no extra cables needed
  • Massive 20,000mAh Capacity: Charges iPhone 15 ~3.9×, Galaxy S24 Ultra ~2.9×, iPad Air ~1.9× – ideal for travel and emergencies
  • Charge 3 Devices at Once: 3 outputs (including built-in cable) + 2 inputs; UL/CE/FCC certified for safety
  • Compact & Lightweight: High-density premium cells deliver full 20,000mAh in a lighter, more portable design
  • Trickle Charging Mode: Double-click to activate 2-hour low-power mode for earbuds, smartwatches, etc.; single-click to exit

Editor's Notes

Written by powerfuldoppler | Staff

Original Post

Written by Navy-Wife | Staff
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Update: This popular deal is still available.

CUKTECH Direct via Amazon has Cuktech 20000mAh 45W Power Bank w/ Built-In USB-C Cable (Black) on sale for $20.39 - 20% off when you apply promo code CUKTECH20 at checkout = $16.31. Shipping is free with Prime or on $35+ orders.

Thanks to Deal Hunter Navy-Wife for finding this deal.
  • Note: Promo codes are typically for one-time use and don't always apply seamlessly. If you run into this issue, refresh the page, re-enter the code, or revisit the cart page.
About this Item:
  • 45W Max Super Fast Charging: Delivers up to 45W output; charges Galaxy S24 Ultra to 50% in ~20 minutes; compatible with iPhone 16/15 Pro Max, MacBook Air, etc.
  • Built-in Durable USB-C Cable: Integrated 45W fast-charging cable (10,000+ bend tested) doubles as a carrying strap – no extra cables needed
  • Massive 20,000mAh Capacity: Charges iPhone 15 ~3.9×, Galaxy S24 Ultra ~2.9×, iPad Air ~1.9× – ideal for travel and emergencies
  • Charge 3 Devices at Once: 3 outputs (including built-in cable) + 2 inputs; UL/CE/FCC certified for safety
  • Compact & Lightweight: High-density premium cells deliver full 20,000mAh in a lighter, more portable design
  • Trickle Charging Mode: Double-click to activate 2-hour low-power mode for earbuds, smartwatches, etc.; single-click to exit

Editor's Notes

Written by powerfuldoppler | Staff

Original Post

Written by Navy-Wife | Staff

Community Voting

Deal Score
+373
Good Deal
Visit Amazon

Leave a Comment

Unregistered (You)

Top Comments

str8flexed
668 Posts
164 Reputation
Cuktech is a subsidiary of Xiaomi and one of the largest charging accessories brand from China.
Although, the English name they've chosen is a bit unfortunate.
ooiman92
206 Posts
22 Reputation
Got one of these the last time they showed up here. I did a charge discharge on it and it comes up a bit short on the capacity. 70wh in, 56wh out. It's larger and heavier than other 20k battery banks that I've used if that matters to you.
Poro
159 Posts
129 Reputation
The name CUKTECH comes from the "Ćuk Converter," a type of efficient DC-DC power circuit, honoring engineer Slobodan Ćuk.

Heard their products are decent.

146 Comments

Sign up for a Slickdeals account to remove this ad.

Jan 13, 2026 07:29 PM
711 Posts
Joined Nov 2008
BlitzmobJan 13, 2026 07:29 PM
711 Posts

Our community has rated this post as helpful. If you agree, why not thank Blitzmob

Came here for all the original big brain takes on the name. Already got a winner.
1
32
23
Jan 13, 2026 07:33 PM
3,024 Posts
Joined Dec 2010
radarsJan 13, 2026 07:33 PM
3,024 Posts
Bulky
1
Jan 13, 2026 07:52 PM
73 Posts
Joined Mar 2016
AssailantJan 13, 2026 07:52 PM
73 Posts

Our community has rated this post as helpful. If you agree, why not thank Assailant

I thought this was for something else.....Returning.
3
25
8
Jan 13, 2026 07:53 PM
3,867 Posts
Joined Dec 2008
konoplyaJan 13, 2026 07:53 PM
3,867 Posts

Our community has rated this post as helpful. If you agree, why not thank konoplya

Quote from Blitzmob :
Came here for all the original big brain takes on the name. Already got a winner.

Found the guy this is made for
4
31
12
Jan 13, 2026 08:21 PM
173 Posts
Joined Feb 2024
CalmHose482Jan 13, 2026 08:21 PM
173 Posts
Is this reputable? Naming aside.
2
1
Jan 13, 2026 08:32 PM
1,036 Posts
Joined Oct 2012

This comment has been rated as unhelpful by Slickdeals users.

Jan 13, 2026 08:33 PM
386 Posts
Joined Sep 2011
pennywizeJan 13, 2026 08:33 PM
386 Posts

Our community has rated this post as helpful. If you agree, why not thank pennywize

This charger powerful enough to top up a laptop that takes a 65 W charger. Heavy well made. charges at fast charging standard on Samsung. Simple display is very useful.
6

Sign up for a Slickdeals account to remove this ad.

Jan 13, 2026 08:38 PM
871 Posts
Joined May 2013

This comment has been rated as unhelpful by Slickdeals users.

Jan 13, 2026 08:54 PM
668 Posts
Joined Aug 2005
str8flexedJan 13, 2026 08:54 PM
668 Posts

Our community has rated this post as helpful. If you agree, why not thank str8flexed

Cuktech is a subsidiary of Xiaomi and one of the largest charging accessories brand from China.
Although, the English name they've chosen is a bit unfortunate.
22
9
3
Jan 13, 2026 09:41 PM
6,005 Posts
Joined Jan 2007
Evan55Jan 13, 2026 09:41 PM
6,005 Posts
Quote from SamirPD :
Do you think that a company that doesn't even take the time to understand the impact of naming their product will give two Fs about their product itself? This is the way I look at all this chinesium that's dumped on our shores...
Its a large Chinese brand named after an electrical engineer who made some breakthroughs in charging tech.
It would be really easy to just print a different company name on the same chargers for export though........
1
1
Jan 13, 2026 09:59 PM
149 Posts
Joined Jul 2016
rkibbeJan 13, 2026 09:59 PM
149 Posts
Quote from CalmHose482 :
Is this reputable? Naming aside.
It's owned by Xiaomi, a $50 billion ARR company and the 3rd-largest cellphone manufacturer globally. I have the same legit question about many brands and their reputation. This is a legit and very large company.
1
Jan 13, 2026 10:30 PM
49 Posts
Joined May 2022
HilariousCrib3277Jan 13, 2026 10:30 PM
49 Posts
I thumbed my nose at this last time it came up but here I come crawling back after my Anker failed and I'm fighting CS tooth and nail for a warranty replacement.
Pro
Jan 13, 2026 11:51 PM
2,199 Posts
Joined Mar 2011
toastedwhitebread
Pro
Jan 13, 2026 11:51 PM
2,199 Posts
Got one, feels well made and works as expected. It's heavy, but in a "Are they heavy? Then they're expensive" sort of way. It might be a bit heavy to want to carry all day, but to stuff in a stroller it should be fine.
1
1
Jan 14, 2026 12:50 AM
206 Posts
Joined Nov 2011
ooiman92Jan 14, 2026 12:50 AM
206 Posts

Our community has rated this post as helpful. If you agree, why not thank ooiman92

Got one of these the last time they showed up here. I did a charge discharge on it and it comes up a bit short on the capacity. 70wh in, 56wh out. It's larger and heavier than other 20k battery banks that I've used if that matters to you.
10
1
1

Sign up for a Slickdeals account to remove this ad.

Jan 14, 2026 01:03 AM
262 Posts
Joined Aug 2024
AmadiohaJan 14, 2026 01:03 AM
262 Posts

Our community has rated this post as helpful. If you agree, why not thank Amadioha

Quote from ooiman92 :
Got one of these the last time they showed up here. I did a charge discharge on it and it comes up a bit short on the capacity. 70wh in, 56wh out. It's larger and heavier than other 20k battery banks that I've used if that matters to you.
Based on your measurements, the honest, usable capacity is closer to 15,000 mAh, not 20,000.
3

Leave a Comment

Unregistered (You)

Related Searches

Tech & ElectronicsPhonesPhone AccessoriesTech AccessoriesChargers & Power BanksAmazon

Popular Deals

See All
Found by Navy-Wife
Today 07:19 PM
$2.99$9.9970% offPrime Members: Lifewit Expandable Silverware / Utensil Kitchen Drawer Organizer (Black, Medium) $2.99 + Free Shipping
0
Found by phoinix
Today 12:05 PM
$48$6526% off$47.99* | Aidoly Adjustable Foldable Weight Bench (795-lbs Capacity) at Amazon
0
Found by phoinix
Today 12:02 PM
$20$4050% off$20* | 20L Eddie Bauer Stowaway Ripstop Polyester Packable Backpack (Onyx Black) at Amazon
3
Found by nolf66
Today 07:26 PM
$9.99Cloudeck SSD Enclosure, USB C External, 10Gbps M.2 NVMe $9.99 AMAZON
1
Found by ppxyz1
Today 07:40 PM
$21$7572% offAmazon Essentials Mens Wrinkle Resistant Chino (Various) 3 for $21 ($6.99 each) + Free Shipping w/ Prime
2

Trending Deals

See All
Found by SUCHaDEAL
Today 03:42 PM
Two Dozen Red Roses in a custom Photo Vase $53 free delivery between 2/13-14 or $10 more for 2/14
6
Found by riffdex
Today 04:28 PM
$240$29919% off22TB Seagate Expansion External HDD $240
6
Found by daisybeetle
Today 08:46 PM
$50$10050% offBrooks Men's Trace 3 Running Shoes (2 colors) $49.97 + Free Shipping
3
Found by Navy-Wife
Today 04:55 PM
$20$3339% offObla Men’s Golf Quarter Zip Pullover Lightweight Long Sleeve Shirt (size S-3XL, various colors) $19.79 + Free Shipping w/ Prime or on $35+
3
Found by phoinix
Today 03:00 PM
$37$6038% off$36.93 | My Arcade Street Fighter II Pocket Player Bundle: 2 Classic Games at Amazon
5