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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Anker 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, Galaxy, MacBook

Product ID: 627309095

Details

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

⚡30W two-way fast charge

🔋10,000mAh powerhouse

🧳Compact travel-ready design

€ 108.30

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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

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Description

⚡ Power Up Anywhere, Anytime — Because Your Hustle Never Stops

TRUSTED RELIABILITY - Backed by Anker’s 18-month warranty and stellar 4.6-star rating from over 2,900 users worldwide.
ALL IN ONE POWERHOUSE - Seamlessly combines power bank, foldable wall plug, and built-in USB-C cable for ultimate convenience on the go.
DUAL DEVICE EFFICIENCY - Charge two devices simultaneously without compromise—perfect for multitasking pros and digital nomads.
LIGHTNING FAST CHARGING - 30W max output fuels your iPhone 15 Pro from 0 to 50% in just 25 minutes—because every minute counts.
TRAVEL LIGHT CHARGE HEAVY - Slim, lightweight (8.82 oz) design fits effortlessly in your bag, powering your devices nearly twice on a single charge.

The Anker Nano 3-in-1 Portable Charger is a sleek, travel-optimized 10,000mAh power bank featuring a built-in USB-C cable and foldable wall plug. Delivering up to 30W two-way fast charging, it powers iPhone 15/16/17 series, Samsung Galaxy, and MacBook devices efficiently. Compact and lightweight, it supports simultaneous charging of two devices, making it an essential companion for busy professionals on the move.

Specifications

ASIN	B0CX4992Z8
Antenna Location	Indoor/Outdoor
Battery Capacity	10000 Milliamp Hours
Battery Cell Type	Lithium Polymer
Battery Weight	144 Grams
Best Sellers Rank	#1,138 in Cell Phones & Accessories ( See Top 100 in Cell Phones & Accessories ) #109 in Cell Phone Portable Power Banks
Brand	Anker
Color	Black
Compatible Cellular Phone Models	Apple iPhone 15, Apple iPhone 15 Pro, Samsung Galaxy S24
Compatible Devices	Smartphone
Compatible Phone Models	iPhone 16/15 Series, Galaxy, MacBook
Connector Type	USB-C1+Built-in C Cable1
Customer Reviews	4.6 out of 5 stars 2,922 Reviews
Global Trade Identification Number	00194644067458
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 C batteries required.
Number of Items	1
Number of Ports	2
Other Special Features of the Product	Fast Charging
Output Wattage	30 Watts
Portable	Yes
Power Source	Battery
Rapid Charging Performance	50% in 45 minutes
Reusability	Rechargeable
Special Feature	Fast Charging
UPC	194644067458
Unit Count	1.0 Count
Voltage	5 Volts
Warranty Description	18
Warranty Type	Limited

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How is product pricing calculated?+

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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€ 108.30

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered 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 Croatia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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