What rating indicates the maximum amps a battery can continuously deliver for up to 60 minutes?

The amp hour (Ah) rating is the correct choice as it defines the capacity of a battery to deliver a specified amount of current over a period of time, specifically one hour. This measurement indicates how many amps can be drawn from the battery continuously for an hour before it is depleted. When you see a battery rated at a certain number of amp hours, it signifies that the battery can sustain that level of current without dropping below its usable voltage for up to 60 minutes.

In practical applications, this rating is crucial for understanding how long a battery can power a device that draws a specific amount of current. It is especially relevant in power tools and other battery-operated equipment, where knowing the run time is important for effective use.

The voltage rating, while important for understanding the potential of a battery to perform work, does not directly indicate the duration of the current delivery. The watt hour (Wh) rating combines both voltage and current to provide energy storage information, but it does not specify the continuous delivery of amps over time. Lastly, the power factor relates to the efficiency of electrical systems in converting input power to output power, and it is not a measure of battery capacity.