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

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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: 640881033

Details

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

⚡30W Two-Way Fast Charging

🔋10,000mAh High-Capacity Battery

🔌Foldable AC Plug for Ultimate Portability

Description

⚡ Power Meets Portability — Stay Charged, Stay Ahead!

COMPACT YET MIGHTY - Sleek, lightweight design (4.25 x 2.01 x 1.22 inches, 8.82 oz) fits perfectly in your bag or pocket 🔋
DUAL DEVICE DYNAMO - Simultaneously charge two devices—stay connected without the wait 🔌
ECO CONSCIOUS POWER - ClimatePartner certified for guilt-free charging that aligns with your values 🌍
POWER UP IN A FLASH - Charge your iPhone 14 Pro from 0 to 50% in just 24 minutes with 30W fast charging ⚡
BUILT IN LIGHTNING CABLE - No more tangled cords—integrated Lightning cable keeps your setup clean and ready

The AnkerNano 3-in-1 Power Bank combines a 10,000mAh lithium polymer battery with a foldable AC plug and 30W two-way fast charging to deliver rapid, reliable power on the go. Designed for iPhone 14 Series and compatible devices, it features a built-in Lightning cable and dual-device charging capability, all in a compact, lightweight form factor certified for environmental responsibility.

Specifications

ASIN	B0D3DC39J1
Antenna Location	Indoor/Outdoor
Battery Capacity	10000 milliamp_hours
Battery Cell Type	Lithium Polymer
Battery Weight	144 g
Best Sellers Rank	#91,134 in Cell Phones & Accessories ( See Top 100 in Cell Phones & Accessories ) #1,677 in Cell Phone Portable Power Banks
Brand	Anker
Color	White
Compatible Phone Models	iPhone 14 Series, AirPods, and More
Connector Type	USB-C1+Built-in Lightning Cable1
Customer Reviews	4.3 out of 5 stars 108 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
Manufacturer	Anker Innovations Limited
Model Number	A1637
Number of Batteries	1 Unknown batteries required.
Other Special Features of the Product	Fast Charging
Power Source	Battery
Reusability	Rechargeable
Special Feature	Fast Charging
UPC	194644039141
Voltage	5 volts

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