Anker Power Bank (20K, 87W, Built-in USB-C Cable) Black
The Anker Power Bank (20K, 87W, Built-in USB-C Cable) is a high-output portable charger built for travellers, remote workers, and anyone charging phones, tablets, and laptops away from a wall outlet. Its 20,000mAh cell pairs with an integrated USB-C cable, so there’s no separate cord to pack for daily charging. This power bank suits people who need laptop-level output in addition to standard phone charging.
Technical Specifications
Capacity & Power
- Battery capacity: 20,000mAh. For instance, this typically supports 3 to 4 smartphone charges depending on device battery size.
- Total output: 87W combined. Specifically, this splits into 65W max through the built-in USB-C cable or USB-C port, and 22W max through the USB-A port.
- Single-device maximum: 65W, available through either the built-in cable or the separate USB-C port.
- USB-A output: Up to 12V/1.5A. Additionally, this port suits accessories and older devices without USB-C.
Physical Design
- Weight: 430.91g (approximately 15.5 oz). Consequently, this size suits a bag rather than a pocket.
- Dimensions: 15.75 x 7.35 x 2.6 cm.
- Cable: Built-in USB-C cable, rated to withstand over 10,000 bend cycles for daily use.
Charging Behaviour
- Recharge time: Approximately 1.5 hours using a 65W charger; slower chargers extend this, with a 30W charger taking around 4.5 hours.
- Device compatibility: Works with USB-C laptops, phones, and tablets, plus USB-A accessories through the third port.
- Warranty: 18-month manufacturer warranty included.
- Travel note: The 20,000mAh capacity stays within common airline carry-on limits for lithium-ion power banks.
Use Cases
Will this charge a laptop?
Yes. The 65W single-device output charges many USB-C laptops, including a 14-inch MacBook Pro to 50% in under 40 minutes. However, laptops with higher power requirements may charge more slowly.
Can it charge three devices at the same time?
The built-in USB-C cable, a separate USB-C port, and a USB-A port allow simultaneous charging. Additionally, total output stays capped at 87W combined, so each device charges a bit slower when all three are active.
How long does a full charge last?
A 20,000mAh capacity typically covers several phone charges or one to two laptop top-ups before needing a recharge. Consequently, this power bank suits multi-day trips without regular access to an outlet.
Internal link: Anker power banks


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