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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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Nano 3-in-1 Portable Charger,10,000mAh 30W Travel Power Bank

Product ID: 627309095

Details

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

⚡30W two-way fast charge

👜Compact & travel-friendly size

🔋10,000mAh capacity

Description

⚡ Power Meets Portability — Never Miss a Beat On the Move!

COMPACT YET MIGHTY - Lightweight 8.82 oz and pocket-sized design fits effortlessly in your daily carry.
POWER UP IN A FLASH - Charge your iPhone 15 Pro from 0 to 50% in just 25 minutes with 30W fast charging.
ALL IN ONE TRAVEL ESSENTIAL - Built-in USB-C cable, foldable wall plug, and power bank combined for ultimate convenience.
TRUSTED DURABILITY SUPPORT - Backed by Anker’s 18-month warranty and top-rated customer service.
DOUBLE THE CHARGE DOUBLE THE EFFICIENCY - Simultaneously power two devices to stay productive on the go.

The Anker Nano 3-in-1 Portable Charger is a sleek, travel-optimized 10,000mAh power bank with a built-in USB-C cable and foldable wall plug. Delivering 30W two-way fast charging, it powers your devices quickly and efficiently, charging an iPhone 15 Pro up to nearly twice on a single charge. Compact and lightweight, it supports simultaneous charging of two devices, making it the perfect companion for busy professionals who demand reliable power anytime, anywhere.

Specifications

ASIN	B0CX4992Z8
Antenna Location	Indoor/Outdoor
Battery Capacity	10000 milliamp_hours
Battery Cell Type	Lithium Polymer
Battery Weight	144 g
Best Sellers Rank	#552 in Cell Phones & Accessories ( See Top 100 in Cell Phones & Accessories ) #43 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 4.6 out of 5 stars (3,102)
Global Trade Identification Number	00194644067458
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
Power Source	Battery
Rapid Charging Performance	50% in 45 minutes
Reusability	Rechargeable
UPC	194644067458
Unit Count	1 Count
Voltage	5 volts
Warranty Description	18
Warranty Type	Limited

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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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