# CUKTECH 30 Power Bank (40 000 mAh, 300 W)

- Source: https://stierproducts.com/products/cuktech-30-power-bank-40-000mah-300w
- Category board: https://stierproducts.com/categories/power-banks
- Placement: #15 of 18 in Power Banks, F tier
- Brand: CUKTECH
- LP on this board: 124
- Last researched: 2026-09-10T13:01:34.821Z
- Method: https://stierproducts.com/methodology
- Dataset: https://doi.org/10.5281/zenodo.22062813 - every board at once, one dated snapshot per release, same licence, prices and photographs left out
- Reuse: Text, rankings, tier assignments, LP values and verdicts are free to quote and reuse with attribution to stierproducts and a link to the source URL (CC BY 4.0: https://creativecommons.org/licenses/by/4.0/). Product photographs are not covered: they belong to their respective owners and are reproduced to illustrate the product being reviewed. Do not redistribute them under this licence.

## Verdict

The 300-W output is advertised, but real-world tests show it delivers only ~200 W and the price is far above comparable Anker Prime models.

## For

- Very high capacity
- 40,000mAh capacity
- 300W output
- Costs the price of a mid-range Anker
- Enormous capacity per dollar for road trips and home backup

## Against

- Real-world output ~200 W
- Price far above comparable models
- Excessive weight
- Lack of safety certifications
- Roughly 148Wh, over the 100Wh airline carry-on limit

## Flagged as one to avoid

This product entered 3 of 7 runs as one buyers cross-shop but should not buy, rather than as a pick. It is published here rather than dropped.

## Evidence

Consolidated from 18 cited sources across 15 outlets

| Outlet | Said by | Stance | Link | Link status |
| --- | --- | --- | --- | --- |
| iVadim | iVadim | B | https://www.youtube.com/watch?v=6wjXEPdv2G0&vl=en | fetched and confirmed |
| 𝖩.𝖥𝗈𝗋𝖼𝖾 𝖦𝖺𝗆𝗂𝗇𝗀 | 𝖩.𝖥𝗈𝗋𝖼𝖾 𝖦𝖺𝗆𝗂𝗇𝗀 | B | https://www.youtube.com/watch?v=qqKGQqk05vM | fetched and confirmed |
| Ryan Adapts | Ryan Adapts | B | https://www.youtube.com/watch?v=asAvp759dQo | fetched and confirmed |
| 9to5Mac | 9to5Mac | B | https://www.youtube.com/watch?v=4320GRtYiGE | fetched and confirmed |
| Coolsmartphone | Ian Furlong | B | https://www.coolsmartphone.com/2026/06/02/the-cuktech-30-ultra-is-this-the-end-of-your-cable-nightmare/ | fetched and confirmed |
| Marc The Geek | Marc The Geek | B | https://www.youtube.com/watch?v=2CdFWUg8eng&vl=en | fetched and confirmed |
| 9to5Mac | Fernando Silva | B | https://9to5mac.com/2026/05/12/hands-on-cuktech-30-ultra-delivers-300w-charging-real-time-power-monitoring-more/ | fetched and confirmed |
| EBPMAN Tech Reviews | EBPMAN Tech Reviews | B | https://www.youtube.com/watch?v=1A2okIHPqhA | fetched and confirmed |
| Instagram | - | B | https://www.instagram.com/p/DY4YLlFsS-A/?__d=11 | fetched and confirmed |
| 📦 Unboxing a true desktop powerhouse — | - | B | https://www.facebook.com/61554807840870/videos/-unboxing-a-true-desktop-powerhouse-cuktech-30-ultra-power-station-300w-max-dc-5/1923198035260604/ | fetched and confirmed |
| Notebookcheck | Marcus Schwarten | - | https://www.notebookcheck.net/Charges-laptops-with-up-to-300-W-Cuktech-30-Ultra-Charging-Station-review.1333609.0.html | fetched and confirmed |
| Whirly Bloke | Whirly Bloke | B | https://www.youtube.com/watch?v=u-IWC6dibDg | fetched and confirmed |
| Oleg Litvin | Oleg Litvin | B | https://www.youtube.com/watch?v=5M2eHclSZ2A | fetched and confirmed |
| Notebookcheck | David Chien | B | https://www.notebookcheck.net/Powerful-300W-Cuktech-30-Ultra-desktop-charging-station-now-available-in-EU-UK-and-US.1275462.0.html | fetched and confirmed |
| GameRevolution | Mack Ashworth | B | https://www.gamerevolution.com/review/984721-cuktech-30-ultra-desktop-charging-station-review-worth-buying | fetched and confirmed |
| Trail & Kale | Alastair Dixon | B | https://trailandkale.com/cuktech-30-ultra-charging-station-review/ | fetched and confirmed |
| Instagram | - | B | https://www.instagram.com/reel/DZsoCcIJ9XP/ | fetched and confirmed |
| Indiegogo | indiegogo.com | B | https://www.indiegogo.com/en/projects/cuktech/cuktech-world-s-most-powerful-portable-powerbank | fetched and confirmed |

## Nearest alternatives on this board

| Rank | Product | Tier | Page |
| --- | --- | --- | --- |
| 1 | Anker Laptop Power Bank | S | https://stierproducts.com/products/anker-laptop-power-bank-25k-165w |
| 2 | Anker Prime Power Bank (27 650 mAh, 250 W) | S | https://stierproducts.com/products/anker-prime-power-bank-27-650mah-250w |
| 10 | Anker Nano Power Bank (Built-In USB-C Cable) | C | https://stierproducts.com/products/anker-nano-power-bank-10k-30w-built-in-usb-c-cable |
| 11 | Nitecore NB10000 Gen 3 | D | https://stierproducts.com/products/nitecore-nb10000-gen-3 |
| 12 | Anker Nano Power Bank | D | https://stierproducts.com/products/anker-nano-power-bank |
| 13 | Belkin BoostCharge Power Bank 20K with Integrated Cable | D | https://stierproducts.com/products/belkin-boostcharge-power-bank-20k-with-integrated-cable |
| 14 | Nimble Champ Pro (20 000 mAh, 65 W) | D | https://stierproducts.com/products/nimble-champ-pro-20-000mah-65w |
| 16 | Anker PowerCore 10000 | F | https://stierproducts.com/products/anker-powercore-10000 |
| 17 | Anker 313 Power Bank (PowerCore 10K) | F | https://stierproducts.com/products/anker-313-power-bank-powercore-10k |
| 18 | iWALK Portable Charger (4 500 mAh) | F | https://stierproducts.com/products/iwalk-portable-charger-4-500mah-linkpod |

The full board is at https://stierproducts.com/categories/power-banks.

## What this tier means

- F: Avoid. The evidence points you elsewhere.

## How to read this

- Each category is researched in four independent runs, one per lens (expert consensus, value, reliability, community pulse). Every run ranks a board of candidates that deliberately includes products buyers cross-shop but should avoid. Placements score on a ranked ladder (LP), and tiers are derived from LP, so no tier is ever assigned by hand.
- LP is this product's points on its own category ladder. It is comparable within a category and not across categories.
- Link status reports what our pre-publication link check found when it fetched the cited URL. It says nothing about the quality of the review.
- A citation with no usable link is listed rather than dropped, and is excluded from the counted total above.

## Image

https://stspimgdevmfyk46r5vwkay.blob.core.windows.net/images/products/cuktech-30-power-bank-40-000mah-300w.webp

Product photographs are not covered: they belong to their respective owners and are reproduced to illustrate the product being reviewed. Do not redistribute them under this licence.