Anker 621 MagGo Power Bank, 5,000mAh Magnetic Portable Charger

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 the power bank to reach temperatures between 98-118°F when the ambient temperature is 77°F. Rest assured, this device meets international safety standards for safe operation.

Why is wireless charging slower than wired charging?

Wireless charging uses coil coupling technology, which is less efficient under the same power conditions. For faster charging, use a wired connection. To improve wireless charging speeds, minimize phone usage and close high-power apps while charging.