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 5500mAh to 7000mAh to power devices.

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

To estimate charges, use this formula: (Power Bank Capacity × 0.7) ÷ Device Battery Capacity. For example, an iPhone 15 with a 3,877mAh battery can receive about 1.92 charges from a 10000mAh power bank (calculated as (10000mAh × 0.7) ÷ 3,877mAh).

How can I charge an iPhone 13 Pro Max with this power bank?

To charge iPhones prior to the iPhone 15 series, an additional USB-C to Lightning cable is required.

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

Slight heating due to efficiency losses in the conversion circuit is normal. The temperature of this Anker Power Bank meets the temperature limits of the IEC62368 certification standard.

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Nano 3-in-1 Portable iPhone Charger, 10,000mAh Power Bank with Built-in USB-C Cable and Foldable Wall Plug, 30W Max Battery Pack, Travel Essentials for iPhone 17/16/15 Series (Blue)

Product ID: 631296151

Details

Battery Capacity
10000 Milliamp
Brand
Anker
Color
Blue
Connector Type
C Cable*1
Special Feature
Fast Charging

⚡30W two-way fast charging

🔋10,000mAh high-capacity power

🧳Compact & travel-friendly design

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MX$1947

Duties & taxes included

In stock

Sold byAmazon MexicoDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Stay powered, stay ahead — the ultimate charger for the unstoppable millennial.

DUAL DEVICE CHARGING - Keep your iPhone and another device powered simultaneously for maximum productivity.
ALL IN ONE CONVENIENCE - Built-in USB-C cable plus foldable wall plug means zero cable clutter and ultimate portability.
TRAVEL READY COMPACTNESS - Slim, lightweight design fits effortlessly in your bag or pocket—your perfect travel companion.
LIGHTNING FAST 30 W OUTPUT - Get from 0 to 50% charge in just 25 minutes—no more waiting around.
POWER UP ANYWHERE ANYTIME - 10,000mAh battery lets you charge your iPhone 15 Pro nearly twice on the go.

The Anker Nano 3-in-1 Portable iPhone Charger combines a 10,000mAh lithium polymer battery with a built-in USB-C cable and foldable wall plug, delivering up to 30W two-way fast charging. Compact and lightweight, it charges an iPhone 15 Pro nearly twice and supports simultaneous charging of two devices, making it an essential travel accessory for professionals on the move.

Specifications

ASIN	B0CX4GPH2D
Antenna Location	Indoor/Outdoor
Battery Capacity	10000 Milliamp Hours
Battery Cell Type	Lithium Polymer
Battery Weight	144 Grams
Best Sellers Rank	#604 in Cell Phones & Accessories ( See Top 100 in Cell Phones & Accessories ) #59 in Cell Phone Portable Power Banks
Brand	Anker
Color	Blue
Compatible Devices	Smartphone
Connector Type	USB-C1+Built-in C Cable1
Customer Reviews	4.6 4.6 out of 5 stars (2,890)
Is Electric	No
Item Dimensions	4.25 x 1.22 x 1.97 inches
Item Dimensions L x W x Thickness	4.25"L x 1.22"W x 1.97"Th
Item Weight	8.82 Ounces
Manufacturer	Anker Innovations Limited
Mfr Part Number	A1637
Model Number	A1637
Number of Batteries	1 Lithium Ion batteries required.
Number of Items	1
Number of Outlets	2
Number of Ports	2
Other Special Features of the Product	Fast Charging
Portable	No
Power Source	Battery
Reusability	Rechargeable
UPC	194644067472
Unit Count	1.0 Count
Voltage	5 Volts
Warranty Description	18

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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MX$1947

Duties & taxes included

In stock

Sold byAmazon MexicoDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Mexico.

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TrustScore 4.5 | 7,300+ reviews

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