Accessories / buying guide
Best Power Banks for Different Needs
Find a power bank for laptop headroom, a built-in cable, magnetic iPhone charging, or a charger-and-battery combo.
Anker Nano Power Bank (10K, 45W, Built-In Retractable USB-C Cable)
A 10,000mAh power bank with a retractable USB-C cable for charging without packing a separate lead.
Official documentation ↗Compare this productQuick verdict
For people who want phone backup power without remembering a separate USB-C cable. Look elsewhere if sustained high-power laptop charging matters more.
Read the analysis and buying limitsCurrent US price snapshot
$59.99Checked Oct 1, 2026
Anker US direct-store price for A1638, in stock; Amazon ASIN B0DGKWTQQC offer price may differ.
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Charging & Power
Analysis and comparisons
Accessories / buying guide
Best Power Banks with Built-In Cables
See where retractable and built-in cables help, and when added output means carrying a heavier power bank.
Accessories / product analysis
Anker Nano 10K 45W: A Power Bank for People Who Forget the Cable
The A1638 puts a retractable USB-C cable on a 10,000mAh power bank. It simplifies everyday charging, with shared-output and sustained-power limits to know.
Full specifications
Documented facts
Key specifications
- Rated capacity
- 10,000mAhAnker
- Built-in cable
- Retractable USB-C, approximately 2.3 ftAnker
- Display
- Light-sensitive TFT display shows battery status and USB-C/USB-A charging power flowAnkerAnker Support
- Charging connections
- Built-in USB-C cable, one USB-C port, one USB-A portAnker
- Single USB-C output
- Up to 45W from built-in cable or USB-C port when used aloneAnker
- Shared output
- Cable + USB-C port: 22.5W max total; all three outputs: 22.5W max totalAnker
- USB-C input
- Up to 30W via cable or portAnker
- Dimensions
- 3.21 × 1.99 × 1.42 inAnker
- Weight
- 0.51 lbAnker
Sources (4)
Trace the evidence
Sources
Linked sources are the underlying evidence. Fit judgments and explanations marked “Our analysis” are our interpretation.
- Official specification
Anker · Anker Nano Power Bank (10K, 45W, Built-In Retractable USB-C Cable) ↗
Accessed
- Official specification
Anker Support · Anker Nano Power Bank (10K, 45W, Built-In Retractable USB-C Cable) product description ↗
Accessed
- Official specification
Amazon · Anker Nano Power Bank A1638 Amazon US listing ↗
Accessed
- Reviewer observation
TechRadar · Anker Nano Power Bank 10K 45W Built-In Retractable USB-C Cable review ↗
Accessed