PWR
Blackbox // PWR
IllustrationPortable charger
Price range · approx.
$35–$70
Not personally tested. Specs and claims are drawn from public research and manufacturer listings, and can vary by model and change over time.
PowerPortable chargerNot tested
High-Capacity 20,000mAh USB-C PD Power Bank
Multi-day or two-person charging off-grid.
The failure moment
Day two of travel, three dead devices, one wall plug.
Best forTravelers / multi-device days
Key features
- ~20,000mAh marketed
- multi-port USB-C + USB-A
- 30–100W PD
- digital % display on some
Honest trade-offs
- Heavier/bulkier than 10k
- near airline 100Wh limit (verify)
- slower to recharge itself
What we’ll say
The only claims we make about this product. Specs vary by model — verify on the source listing. We don’t publish ratings, testimonials, or guarantees.
- Marketed at ~20,000mAh
- multi-port simultaneous charging
- USB-C Power Delivery
Related film concept
“Two phones. One outlet. A 9-hour layover.”
DROP 001 · Dead Phone, Bad Timing · In production
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