You are confusing Amps and Amp Hours
Amps is a rate of flow.. Gallons per minute
Amp hours are Amps times Hours Gallons delivered
I will use "Gallon minutes" for this
If you are flowing 5 GPM you can fill a 5 gallon bucket in 1 minue
The rate is 5 and the use is too.
But let's say you had a variable faucet
IT runs 3-15 Gallon, and you start at oh, say 15 (Quickly filling the bucket) then as it fills you "Throttle" back to 3 GPM till full
Your rate (Amps) is all over the range of 3-15 BUt your AMP HOURS is still 5