Question

Why the capacity of batteries are measured in `Ah` (Ampere hour) and not `A/h` (Ampere per hour) ?

Answer 1

Think about what the units represent, ampere represents current, and hour represents time.

`1Ah = 1A*1h`.

An equation which uses current and time is `I\Deltat=\DeltaQ`.

So, `1Ah` represents `3,600C` or how much charge is needed to move 1 ampere of current around a circuit for 1 hour.