36 V, 7.2 Ah Lithium-Ion battery. The AP 300 S is a high capacity battery that powers tools within the STIHL AP System. With an energy capacity of 281 Wh, this battery offers an impressive 25% increase in capacity compared to the AP 300, meaning this battery will consistently power AP System tools for longer. The battery has an integrated LED charge indicator, clearly displaying as and when the battery needs charging. Plus, the AP 300 S battery comes equipped with the latest version of STIHL Connected, allowing users to keep track of data such as total discharge time and the total number of charge cycles. This data is then made available in the STIHL Connected App, a fleet management tool capable of giving an insightful overview of all tools in your fleet. Durable and suitable for all weather conditions, the new AP 300 S delivers the same long working times as the previous version and is the powerhouse behind the vast majority of AP System tools. This battery has a cold start feature, which protects the cells by warming them up in a controlled way before delivering full power and allows them to work down to -20° Celsius - delivering full power within as little as 2 minutes! AP System batteries feature intelligent battery management system - this clever technology gives a constant level of power whether the battery is 100% charged or 1% charged. Compatible with the AL 101, AL 301, AL 301-4 and AL 501 charger unit.