The 100W refers to the maximum charging output of the power bank - in other words, how much power it can deliver to a compatible device at one time.
The 73Wh refers to the battery capacity - that is, how much total energy the power bank stores.
These are two different measurements:
- W (watts) = charging power or speed
- Wh (watt-hours) = battery capacity
So a power bank can have a 100W output and a 73Wh battery capacity at the same time. This is normal and not a mismatch.
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