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 A1610 Battery (PowerCore 5K) offers an estimated 2,750mAh~3,250mAh to power devices.

How can I estimate the number of charges for my device?

To estimate charging cycles, use these formula (Power Bank Capacity × 0.5) ÷ Device Battery Capacity ≈ Number of Charges. For instance, charging a 3,000mAh device using a 5,000mAh Wireless power bank would offer approximately 0.83 charges.

Why does charging stop at 80%?

Your iPhone may automatically stop charging at 80% to protect its battery from overheating, as part of iOS 17's thermal management strategy. Charging will resume once the device cools down. Moving it to a cooler spot can help speed up this process.

Why is my phone overheating?

It's normal for devices to warm up slightly during wireless charging, particularly with heavy use like extensive gaming or streaming. Rest assured, this device meets international safety standards for safe operation.

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Anker 621 Magnetic Portable Charger (MagGo), 5,000mAh Wireless Power Bank with USB-C Cable, Magsafe-Compatible Battery Pack for iPhone 16/15/14/13/12 Series

Anker 621 Magnetic Portable Charger (MagGo), 5,000mAh Wireless Power Bank with USB-C Cable, Magsafe-Compatible Battery Pack for iPhone 16/15/14/13/12 Series

Product ID: 467591434

Details

Battery Capacity
5000 Milliamp
Brand
Anker
Color
Blue
Connector Type
USB Type C
Special Feature
Wireless

📏Ultra-slim 0.45" thickness

🔋5000mAh capacity

🧲Strong MagSafe magnetic attachment

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VT12211

Duties & taxes included

In stock

Sold byAmazon VanuatuDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Details

Battery Capacity
5000 Milliamp
Brand
Anker
Color
Blue

Description

⚡ Snap, Charge, Go — Power that sticks with you!

POCKET SIZED POWERHOUSE - Slim, lightweight design fits seamlessly in your daily carry without bulk.
TRUSTED ANKER RELIABILITY - Backed by a 24-month warranty and renowned customer service for peace of mind.
MAGNETIC SNAP ON CONVENIENCE - Ultra-strong magnets ensure perfect alignment and secure attachment for hassle-free wireless charging.
EFFORTLESS ON THE GO CHARGING - Wireless power bank frees you from cables, letting you charge while taking calls or selfies.
UNIVERSAL USB C COMPATIBILITY - Includes USB-C cable for fast wired charging and versatile device support beyond iPhone.

The Anker 621 Magnetic Portable Charger (MagGo) is a compact 5000mAh wireless power bank designed for iPhone 12 through 16 series. Featuring Anker’s MiniCell tech, it delivers efficient charging in a slim 0.45-inch profile with ultra-strong MagSafe magnets for secure, cable-free power on the move. Includes a USB-C cable for wired charging versatility and comes with a 24-month warranty, making it the perfect blend of convenience and trusted performance for busy professionals.

Specifications

ASIN	B099VV9Z98
Antenna Location	Outdoor
Battery Capacity	5000 Milliamp Hours
Battery Cell Type	Lithium Polymer
Battery Weight	75 Grams
Best Sellers Rank	#57 in Cell Phones & Accessories ( See Top 100 in Cell Phones & Accessories ) #4 in Cell Phone Portable Power Banks
Brand	Anker
Color	Blue
Compatible Devices	iPhone 16/15/15 Plus/15 Pro/15 Pro Max/14/14 pro/13 Series, iPad, Samsung
Compatible Phone Models	iPhone
Connector Type	USB Type C
Customer Reviews	4.3 out of 5 stars 18,973 Reviews
Item Dimensions	4.33 x 4.33 x 2.56 inches
Item Dimensions L x W x Thickness	4.13"L x 2.62"W x 0.45"Th
Item Weight	0.28 Pounds
Manufacturer	Anker Innovations Limited
Mfr Part Number	A1610031
Model Name	A1610
Model Number	A1610031
Number of Batteries	1 C batteries required.
Number of Ports	1
Other Special Features of the Product	Wireless Charging
Portable	No
Power Source	Battery
Reusability	Rechargeable
Special Feature	Wireless Charging
UPC	194644078584
Unit Count	1.0 Count
Voltage	5 Volts
Warranty Type	Limited
Wireless Charging Standard	MagSafe

Reviews

S**E

19.06.2025

M**S

6.03.2026

K**O

2.04.2026

V**9

2.04.2026

D**N

14.04.2026

B**.

17.04.2026

C**Y

11.03.2026

K**A

21.09.2025

M**W

22.03.2026

V**H

27.07.2023

E**W

4.11.2025

B**0

13.10.2025

A**O

23.04.2026

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