Which term is used to express the rating of a storage battery?

The term used to express the rating of a storage battery is "Ampere-hour." This measurement indicates the capacity of the battery, specifically how much charge it can deliver over a set period of time. For instance, if a battery is rated at 10 ampere-hours, it can theoretically supply 10 amperes of current for one hour, or 1 ampere for ten hours, before it is fully discharged.

Understanding ampere-hours is crucial in selecting the right battery for an application, as it helps in assessing how long a battery can power a device or system before needing a recharge. A higher ampere-hour rating typically suggests a larger capacity or longer duration of energy output under specified load conditions, making it a key specification when evaluating batteries for various uses, including those involved in sewage treatment systems.

Other measurement terms like wattage, voltage, and resistance rating serve different purposes in electrical systems and do not directly correlate to the overall capacity of the battery. wattage reflects power consumption, voltage rating pertains to the electrical potential difference, and resistance rating indicates how much a material opposes the flow of electric current, but none of these specify how long a battery can provide power.