Ampere-hours (Ah) represent a unit of electrical charge, quantifying the amount of current a battery can deliver over a specific period. Determining this value is critical when selecting a battery for a particular application. As an example, a 10 Ah battery can theoretically supply 1 ampere of current for 10 hours, or 2 amperes for 5 hours, assuming a constant discharge rate and ideal conditions.
Understanding battery capacity is essential for effective power management in various systems, from portable electronics to electric vehicles. Accurate assessment prevents premature battery depletion, prolongs equipment lifespan, and ensures reliable operation. Historically, determining battery capacity often involved complex calculations and specialized equipment. Modern methods, however, offer simpler approaches, accessible to a wider range of users.