STIHL AP 500 S Lithium-Ion Battery stands as the most potent in the AP battery line, empowering professionals to handle larger-scale tasks with robust power. Leveraging STIHL's exclusive power laminate cell technology, it boasts an extended life cycle of up to 2,500 charges. With a 40% increase in power output and 20% more capacity than its predecessor, it leads the AP System in power-to-weight ratio, ensuring maximum power while reducing user fatigue. This high-performance battery is compatible with most tools in the AP System, providing versatility and seamless transitions between different tasks. Notably, the AP 500 S incorporates STIHL SMART Power, an innovative feature that allows the motor's electronic control system to adapt to voltage reduction by increasing amperage, ensuring consistent power throughout its entire runtime. This top-tier professional-grade battery is designed to efficiency and productivity in demanding job environments. Model Number: AP 500 S