How Many Times Can a 5000mAh Rated Power Bank Charge a Phone?

The Brick power bank is 5000 mAh, which is the unit of charge, not the unit of energy. Two electronic gadgets with lithium-ion batteries can have the same battery mAh, but their energy levels can vary.

Several factors affect the charging efficiency of a power bank, including various efficiency factors related to the battery itself and the quality of the device being charged:
- The charging efficiency
- The charging efficiency is a measure of how effectively the energy is transferred from the power bank to the phone battery during the charging process. It is determined by the ratio between the energy consumed by the charging process and the energy actually stored in -- the phone battery.

Cable length can have an impact on charging efficiency, but in the case of power banks like Brick, it is not a significant factor. Voltage drop, which affects charging efficiency, typically occurs over longer cable lengths, usually around 15 meters or more. The cable efficiency of Brick power banks is 100%

Rechargeable lithium-ion batteries undergo degradation over time, which can be influenced by various factors, including usage patterns and environmental conditions. One such factor is temperature, as extreme temperatures can harm battery performance and lifespan. Speaking of temperatures, being headquartered in Sweden, where it can get pretty chilly, we've had our fair share of experiences with low temperatures!

A Brick power bank can fully charge an iPhone 12 approximately 1.3 times.