The right tools will maximize your efficiency. The AP 200 lithium-ion battery pack by Stihl features a lightweight design, allowing you to work freely with ample agility. High-quality cells used in STIHL batteries can handle more than 1,500 charge cycles, delivering superior run time and long battery life. The water-resistant battery casing protects cells from humidity and allows use of STIHL AP 200 batteries in a broad variety of weather conditions.