3Rank 03 of 10 · Power Banks
BlueBuilt Power Bank 20.000 mAh 45 W (BBPB4520PR)
Coolblue's own-brand bank is the lightest 20,000 mAh model we could document at 314 g, with three ports (45 W, 30 W, 22.5 W) and a display that shows remaining charge and live wattage.
7.1BPR score
- €55Price
- Not published (20,000 mAh only); weight 314 g published by CoolblueEnergy in Wh and rated capacity at 5 V
- 3 of 10in Power Banks
- 7.1BPR score 0–10
Review
What this product is
Written after the analysis, from the same sources the score is built on: the manufacturer's documentation, available studies and verified owner feedback.
BlueBuilt is Coolblue's house brand, sold in the Netherlands and Belgium, so this suits buyers in those markets who want a compact all-rounder with a long warranty. Coolblue lists a three-year standard warranty, extended to five years when bought there.
The specification table is reasonably complete for a retailer brand: USB-C at 45 W, a second USB-C at 30 W, USB-A at 22.5 W, USB Power Delivery 3.0 and Quick Charge 3.0, 12 × 6.9 × 3.26 cm and 314 g. That is the lowest weight we found for a 20,000 mAh bank in this ranking, and the display reporting real-time wattage is useful for checking whether a device is actually fast-charging.
Owners rate it 8.8 out of 10 from 13 reviews on the product page we opened. At €55.00 it costs more than the Samsung or the budget Varta and Intenso units, but less than the high-wattage UGREEN and Anker models.
What is missing: no watt-hour figure and no rated capacity at 5 V, so the 314 g cannot be converted into a weight-per-Wh figure, and PPS support is not mentioned. Availability outside Coolblue's markets is limited. We found no independent test.
Technical data
Specification
Figures from the manufacturer's documentation, verified against available outside sources. Values we could not confirm are marked as declared.
- Manufacturer code
- BBPB4520PR
- Capacity
- 20,000 mAh
- USB-C port 1
- 45 W
- USB-C port 2
- 30 W
- USB-A
- 22.5 W
- Protocols
- USB PD 3.0, Quick Charge 3.0
- Weight
- 314 g
- Dimensions
- 12 × 6.9 × 3.26 cm
- Display
- Charge level and real-time wattage
- Warranty
- 3 years (5 years via Coolblue)
- Price seen
- €55.00, Coolblue
Component scores
Where the score
comes from.
Four components, equal weight, each on a 0–10 scale and each resting on a named source. The overall score is their mean — the full procedure is in the methodology.
What we liked
- 314 g — lightest documented here
- 45 W + 30 W + 22.5 W ports
- Display shows charge level and live wattage
- 3-year warranty, 5 years via Coolblue
- 8.8/10 from 13 Coolblue reviews
Worth knowing
- Wh not published
- Rated capacity at 5 V not published
- PPS not mentioned
- Sold essentially only through Coolblue
Comparison
How it compares
within the category
All values come from the same analysis and are comparable only within the category Power Banks.
| Product | Score | Energy in Wh and rated capacity at 5 V | Price |
|---|---|---|---|
| Battery Pack 20,000 mAh 45W EB-P4520Top score | 7.7 | 74 Wh at 14.8 V (four cells in series) — published in the retailer datasheet; rated capacity at 5 V not published | €34 |
| Power Bank 20.000 mAh 45 W (BBPB4520PR)This product | 7.1 | Not published (20,000 mAh only); weight 314 g published by Coolblue | €55 |
| Category average10 products analysed | 6.7 | — | — |
FAQ
Frequently asked questions
Who makes BlueBuilt power banks?
BlueBuilt is the own brand of the Dutch retailer Coolblue, and the product page and warranty terms are Coolblue's.
Is 45 W enough for a laptop?
For small USB-C laptops and tablets, yes; laptops that expect 65 W or more will charge more slowly.
From the same ranking
Other products in Power Banks.
The same protocol, the same key parameter, the same set of sources.
-
No. 017.7/ 10
Battery Pack 20,000 mAh 45W EB-P4520
The only bank in this list whose energy in watt-hours, cell voltage and weight all appear in…
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No. 027.2/ 10
Nexode Power Bank 20000mAh 100W (25188)
The most completely documented bank here: UGREEN publishes 72 Wh, a rated capacity of 11,300…
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No. 046.9/ 10
Powerbank 20.000 mAh FS5201
The most-reviewed bank in our Coolblue sample, 8.9/10 from 51 owners. Two bidirectional 35 W…
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No. 056.6/ 10
Powerbank F20000 PD (7332054)
The cheapest bank here at €28.66, with a clearly stated input (5 V 3 A / 9 V 2 A, 18 W max)…