AP 500 S battery compatible with the STIHL AP system With 8.8 Ah, 337 Wh of energy and 1.9 Kg. It is STIHL’s most powerful battery and also doubles the useful life and number of charge cycles compared to the AP 300 S battery. It has Bluetooth to integrate with the STIHL Connected system. With powerful lithium-ion technology and reduced weight. With LED charge status indicator with 4 green lights. It can be used in the rain. Due to its characteristics, it is ideal for landscaping and professional maintenance of green spaces and trees. As it is very quiet, it is perfect for working in urban environments.