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  6. Item#: 9SIACCUKAV0867

  • $69.99
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    Top Rated
    4.6 (4,066 seller ratings)

    Shipped by Direct from manufacturerAnker Official Store

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    Anker Power Bank, 20,000mAh Portable Charger with Built-in USB-C Cable, 87W Max Fast Charging Battery Pack for Laptop, 2 USB-C and 1 USB-A, for MacBook, iPhone 15 Series, Samsung, Switch, and More

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    • The capacity reduction during charging is due to a 30% to 45% energy loss in the battery cells and conversion circuitry. Therefore, a fully charged Anker A1383 Power Bank (PowerCore 20K) offers an estimated 11,000mAh to14000mAh to power devices.
    • To estimate charging cycles, use this formula:
    • (Power Bank Capacity × 0.65) ÷ Device Battery Capacity Number of Charges.
    • For instance, charging a 3,000mAh device using a 20,000mAh power bank would offer approximately 4.33 charges.
    • It depends on the charger's power and the ambient temperature. The A1383 model, when using a 30W PD charger at 77°F (25°C), takes about 4.5 hours to recharge.
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    Why is my power bank providing fewer charges than expected?

    The capacity reduction during charging is due to a 30% to 45% energy loss in the battery cells and conversion circuitry. Therefore, a fully charged Anker A1383 Power Bank (PowerCore 20K) offers an estimated 11000 mAh to 14000 mAh to power devices.

    How can I estimate the number of charges for my device?

    To estimate charging cycles, use this formula:

    (Power Bank Capacity × 0.65) /Device Battery Capacity is approximately equal to Number of Charges.

    For instance, charging a 3000 mAh device using a 20000 mAh power bank would offer approximately 4.33 charges.

    How long does it take for the power bank to recharge?

    It depends on the charger's power and the ambient temperature. The A1383 model, when using a 30W PD charger at 77°F (25°C), takes about 4.5 hours to recharge.

    Product information
    Specification
    Product Dimensions 6.2 x 2.89 x 1.02 inches
    Item Weight 15.5 ounces
    Item model number A1383
    Batteries 1 Lithium Metal batteries required. (included)
    Special features Fast Charging
    Other display features Wireless
    Color Black
    The capacity reduction during charging is due to a 30% to 45% energy loss in the battery cells and conversion circuitry. Therefore, a fully charged Anker A1383 Power Bank (PowerCore 20K) offers an estimated 11, 000mAh to14000mAh to power devices.

    Warranty & Returns

    Warranty, Returns, And Additional Information

    Warranty

    • Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
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    The Anker A1383 is a 20,000mAh portable power bank with up to 87W total output, a built-in USB-C cable, two USB-C connections, and one USB-A port. It suits travelers and mobile professionals who want to recharge phones, tablets, or compatible laptops without carrying a separate USB-C cable.

    Recommended For

    • USB-C laptop users who work or travel away from outlets and want a portable top-up: its built-in cable or USB-C port can supply up to 65W, enough for many laptops.
    • Frequent travelers who want to carry fewer charging accessories: the built-in USB-C cable can charge a laptop or phone without packing a separate cable.
    • People carrying a laptop and phone who want to top up more than one device during a workday or trip: it has two USB-C charging options and a USB-A port, with up to 87W total output shared across devices.
    • Travelers or hikers who prefer a higher-capacity bank and can make room in a backpack: a community user reported using it on multi-week trips and highlighted its fast recharge when paired with a 65W charger.

    Spec Summary

    AttributeValue
    Best ForPortable charging for compatible phones, MacBook and other laptops, and Nintendo Switch, with a built-in USB-C cable and three charging connections
    Capacity And Battery20,000 mAh rechargeable lithium-polymer battery, rated at 72 Wh
    Charging And ConnectivityUp to 87W output with fast charging; three connections: built-in USB-C cable, one additional USB-C port, and one USB-A port. Listed rapid-charge performance is 52% in 30 minutes
    Dimensions And Weight6.2 × 2.89 × 1.02 inches; 15.5 ounces
    ColorBlack
    Model IdentifiersAnker model A1383