For input power, the power conversion rate of a power bank is about 80% to 90%, which means that the device can receive about 90W from a 100W charger, and about 126W from a 140W charger.

It is normal for the 737 Charger (GaNPrime 120W) to charge the 737 Power Bank (PowerCore 24K) at around 90W since the 737 Charger (GaNPrime 120W) has a maximum output of 120W, but the maximum output of a single USB-C port is 100W. However, the 737 Charger (GaNPrime 120W) can support up to 100W if it is being used to charge another device that supports 100 Watts, such as a laptop.

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