Answer
May 27, 2026 - 06:57 AM
Battery capacity, measured in ampere-hours (Ah), indicates how long a battery can run before needing a recharge. Higher capacities, like 5.0 Ah, provide extended runtime, making them ideal for long projects or high-drain tools, while lower capacities (such as 2.6 Ah or 3.0 Ah) result in lighter batteries, perfect for tasks requiring mobility or overhead work. For example, the Festool 577661 Battery pack BP 18 Li 5,0 ASI is great for endurance, while the Festool 577705 Battery pack BP 18 Li 3,0 Ergo I offers lightweight convenience. With a wide variety of capacities available in batteries & chargers, you can select the right balance between runtime and portability.
