The symbol “Ah” stands for Ampere-hour, a unit of electric charge. It is used to indicate the capacity of a battery, including the amount of current a battery can deliver over a certain period.

When a battery is rated with a capacity of 100Ah, it means that the battery can theoretically deliver 100 amperes for one hour before it is fully discharged. In other words, it indicates the total charge the battery can contain and the current it can deliver over a certain period.

The Ah rating is an important specification when choosing a battery because it indicates how much current a battery can deliver before it needs to be recharged. A battery with a higher Ah value generally has a larger capacity and can deliver power longer before it needs to be recharged.

It is important to know that the actual usable capacity of a battery may depend on several factors, such as load, environmental conditions, and the age of the battery. Therefore, it is advisable to consult the manufacturer's specific recommendations for optimal usage conditions and expected performance of the battery.