The AP 300 S is a high capacity battery that will power any tool within the Stihl PRO Cordless system. With an energy capacity of 281 Watt-hours (which relates to run time), this battery produces an impressive 25% increase in capacity compared to the AP 300, and with an Amp-hour capacity of 7.8, this battery will consistantly power PRO Cordless tools for longer. This high capacity battery also has 20% more power compared to the AP 300. The 2.1kW power delivered by this battery will lend itself perfectly to the future launch of the PRO MSA 220 C -B cordless chainsaw that will be launched later in 2019. The extra battery output is needed to provide more power for a faster cutting speed and consistent performance. The AP 300 S in conjunction with the MSA 220 C-B will be ideal for harvesting smaller stands of timber and perfect to have alongside the chipper to trim up large branches. The AP 300 S can be used in conjunction with the battery belt and harness and will power any of the current Stihl PRO Cordless tools.