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Retractable 3-in-1 30W GaN Power Bank & Charger
Retractable 3-in-1 30W GaN Power Bank & Charger
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Retractable 3-in-1 30W GaN Power Bank & Charger
Braun Audio 300 Homage • Built-in Auto-Retractable Type-C Cable • 10000mAh Lishen 21700 Cells • Dot-Matrix Display
Key Selling Points
3-in-1 Monolithic Travel Consolidation:
Combines a 10000mAh power bank, a 30W wall-plug fast charger with foldable prongs, and an integrated auto-retractable USB-C cable into one pocketable form factor, streamlining business trips and daily carry.
Automotive-Grade Tianjin Lishen 21700 Battery Cells:
Powered by premium EV-grade 21700 lithium-ion cells manufactured by state-enterprise Tianjin Lishen. Offers elevated energy density, reliable thermal stability, and an efficient ≥79% conversion rate with 5600mAh rated real-world delivery.
Braun Audio 300 Inspired Transparent Industrial Aesthetic:
Pays homage to Dieter Rams' iconic Braun Audio 300 design ethos with a clear optical window showcasing the white-and-red central cable spool, clean geometric framing, and a carrying strap lanyard.
Sub-Surface Dot-Matrix Digital Display:
Features an integrated retro dot-matrix LED panel glowing through the matte casing, presenting exact battery percentages and real-time charging status at a glance.
Safe Overnight Charging & Flight-Approved Certification:
Equipped with an intelligent chip supporting trickle-down overnight charging to protect smartphone battery cycles. Fully compliant with 3C safety certifications and international aviation standards (36Wh), making it approved for carry-on baggage.
Technical Specifications
| Product & Model | Retractable 3-in-1 Power Bank (Model: P7 / P7U) |
| Battery Cell Architecture | Automotive-Grade Tianjin Lishen 21700 Li-ion Core |
| Nominal Battery Capacity | 10000 mAh / 36 Wh (Rated Output Capacity: 5600 mAh) |
| Energy Conversion Rate | ≥ 79% High-Efficiency Output |
| Wall Charger Output | 30W Max High-Speed Fast Charge (Integrated Foldable AC Prongs) |
| Interface Configuration | 1 × Bidirectional USB Type-C Port + 1 × Built-in Retractable USB-C Cable |
| Display Technology | Integrated Sub-Surface Dot-Matrix Digital Power Indicator |
| Dimensions & Weight | 110 × 52 × 40 mm (4.3 × 2.0 × 1.6 in) | Approx. 300 g (10.58 oz) |
| Safety Certifications | 3C Certified, Airline Carry-On Approved Standard (<100Wh) |
Operational Modes & Functional Behavior
| Operational State | Hardware Activation | Functional Value |
|---|---|---|
| Wall Charger Mode | AC prongs unfolded into wall outlet | Functions as a 30W GaN adapter to power devices while automatically replenishing internal cells |
| Power Bank Mode | Unplugged mobile battery operation | Outputs up to 30W fast charge via the built-in retractable line or secondary Type-C port |
| Overnight Pass-Through | Continuous AC connection | Prioritizes full device charging before topping off the power bank, shifting into safe trickle mode |
Recommended For
- Ultralight Business & Flight Travelers: Combines adapter, cords, and 10000mAh battery reserve into a single 36Wh flight-safe block.
- Industrial Design & Retro Aesthetics Lovers: The clear Braun-inspired spool window and clean white casing add curated elegance to EDC kits.
- Commuters Seeking Zero Cable Clutter: The self-contained retractable cord eliminates loose, tangled cables from bags and desk surfaces.
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