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 Nano Power Bank offers an estimated 2,750mAh to 3,500mAh to power devices.

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

To estimate the number of charges: (Power Bank Capacity × 0.65) ÷ Device Battery Capacity. For example, a 5,000mAh power bank gives an iPhone 15 (3,877mAh) about 0.8 charges, and an iPhone 15 Pro Max (4,852mAh) about 0.64 charges.

How can I charge an iPhone 14 Pro Max with this power bank?

To charge iPhones prior to the iPhone 15 series, an additional USB-C to Lightning cable is required (not included).

Is it normal for the power bank to get slightly warm during use?

Yes, it is normal. The product meets safety standards with a maximum temperature rise of 118°F (48°C).

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⚡ Power up fast, stay ahead always.

ALL DAY ENERGY - 5,000mAh capacity ensures your devices stay powered through meetings, commutes, and adventures.
TANGLE FREE TECH - Built-in foldable USB-C connector keeps cables neat and ready—effortless charging anytime.
SWIFT POWER BOOST - Charge your iPhone 16/15 or Samsung S22/23 at blazing 22.5W speeds—never miss a moment.
COMPACT POWERHOUSE - Sleek, pocket-friendly design that fits your on-the-go lifestyle without bulk or fuss.
TRUSTED RELIABILITY - Backed by a 24-month warranty and Anker’s renowned customer service for peace of mind.

The Anker iPhone 16 Portable Charger is a sleek, ultra-portable 5,000mAh power bank delivering rapid 22.5W charging via a built-in foldable USB-C connector. Compatible with iPhone 16/15, Samsung S22/23, iPad Pro/Air, and more, it combines convenience and power in a compact design, backed by a 24-month warranty and trusted Anker support.

$51

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

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Item Dimensions L x W x Thickness	5.16"L x 3.98"W x 1.42"Th
Item Weight	3.5 Ounces
Battery Cell Type	Lithium Ion
Color	Black Stone
Warranty Type	Limited
Recommended Uses For Product	Phone
Compatible Devices	Smartphone
Is Electric	No
Portable	No
Voltage	5 Volts
Power Source	Corded Electric
Number of Ports	1
Connector Type Used on Cable	USB Type C
Battery Capacity	5000
Additional Features	Portable

Anker iPhone 16 Portable Charger, Nano Power Bank with Built-in USB C Connector, 5,000mAh Portable Charger 22.5W, for iPhone 16/15 Series, Samsung S22/23 Series, iPad Pro/Air, AirPods, and MoreECOLOGO

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