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 15 Pro Max with this power bank?

To charge iPhone 15 series and later, an additional USB-C to USB-C cable is required (not included).

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 Power Bank, Foldable AC Plug, 10,000mAh, 30W Two-Way Fast Charging, Built-in Lightning Cable (Not for iPhone 16/15 Series), Compatible with iPhone 14 Series, AirPods, and More

Product ID: 643729584

Details

Battery Capacity
10000
Brand
Anker
Color
Pink
Connector Type
Lightning
Special Feature
Fast Charging

⚡30W two-way fast charge

🔋10,000mAh powerhouse

🔌Foldable AC plug + built-in Lightning cable

Description

⚡ Power up your hustle, anywhere, anytime.

DUAL DEVICE CHARGING - Keep your essential devices ready by charging two gadgets simultaneously—efficiency meets convenience.
ALL IN ONE POWERHOUSE - Seamlessly combines power bank, foldable charger, and built-in Lightning cable for ultimate travel freedom.
COMPACT LIGHTWEIGHT - Sleek design at just 8.82 oz and pocket-friendly dimensions—power on the go without the bulk.
ECO CONSCIOUS CERTIFIED - ClimatePartner certified, so you power up responsibly while staying ahead of the curve.
LIGHTNING FAST CHARGING - Juice your iPhone 14 Pro from 0 to 50% in just 24 minutes with 30W two-way fast charging.

The AnkerNano 3-in-1 Power Bank is a compact 10,000mAh lithium polymer battery with a foldable AC plug and built-in Lightning cable, delivering 30W two-way fast charging. Designed for iPhone 14 series and compatible devices, it charges two devices simultaneously and is ClimatePartner certified for eco-conscious users.

Specifications

ASIN	B0D3DBRF1Y
Antenna Location	Indoor/Outdoor
Battery Capacity	10000 milliamp_hours
Battery Cell Type	Lithium Polymer
Battery Weight	144 g
Best Sellers Rank	#111,204 in Cell Phones & Accessories ( See Top 100 in Cell Phones & Accessories ) #1,986 in Cell Phone Portable Power Banks
Brand	Anker
Color	Pink
Compatible Phone Models	iPhone 14 Series, AirPods, and More
Connector Type	USB-C1+Built-in Lightning Cable1
Customer Reviews	4.5 4.5 out of 5 stars (90)
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
Manufacturer	Anker Innovations Limited
Number of Batteries	1 Unknown batteries required.
Other Special Features of the Product	Fast Charging
Power Source	Battery
Reusability	Rechargeable
UPC	194644039103
Voltage	5 volts

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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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