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 Charger,10,000mAh 30W Travel Power Bank

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

Product ID: 628792075

Details

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

⚡30W two-way fast charging

👜Compact & travel-friendly size

🔋10,000mAh capacity

R2226

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Power meets portability — never run out, never slow down.

ALL IN ONE FREEDOM - Built-in USB-C cable + foldable wall plug + power bank = zero clutter, max convenience.
POWER UP IN A FLASH - 30W fast charge fuels your iPhone 15 Pro to 50% in just 25 minutes—because waiting is so last decade.
TRUSTED BY THOUSANDS - 4.6-star rating from 3,000+ users proves this is the power bank professionals swear by.
TRAVEL LIGHT CHARGE HEAVY - Weighing under 9 oz and pocket-sized, it’s your ultimate on-the-go power companion.
DOUBLE THE JUICE DOUBLE THE EFFICIENCY - Charge two devices simultaneously and stay ahead of your busy day.

The Anker Nano 3-in-1 Portable Charger combines a 10,000mAh lithium polymer battery with a foldable wall plug and built-in USB-C cable, delivering 30W two-way fast charging. Compact and lightweight, it charges an iPhone 15 Pro nearly twice on a single charge and supports simultaneous charging of two devices. Perfectly designed for busy professionals and travelers seeking sleek, efficient power solutions backed by an 18-month warranty and stellar user reviews.

Specifications

ASIN	B0CXDTNJST
Antenna Location	Indoor/Outdoor
Battery Capacity	10000 milliamp_hours
Battery Cell Type	Lithium Polymer
Battery Weight	144 g
Best Sellers Rank	#921 in Cell Phones & Accessories ( See Top 100 in Cell Phones & Accessories ) #73 in Cell Phone Portable Power Banks
Brand	Anker
Color	Pink
Compatible Devices	Smartphone
Connector Type	USB-C1+Built-in C Cable1
Customer Reviews	4.6 out of 5 stars 3,080 Reviews
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 Ports	2
Other Special Features of the Product	Fast Charging
Power Source	Battery
Reusability	Rechargeable
Special Feature	Fast Charging
UPC	194644067489
Unit Count	1 Count
Voltage	5 volts
Warranty Description	18
Warranty Type	Limited

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