The ES 1300 is designed with lithium batteries that allow the machine to run for up to 3 hours of operating time on a fresh/fully charged pack. With our Speed Load battery system, the user can easily swap out battery packs within seconds which allows them to continue operating with minimal downtime. As a result of the fast charge cycle of the Lithium batteries, if a user starts the day with two fully charged battery packs, they can expect around 8 hours of runtime by changing out battery packs when needed. With three battery packs, this machine could operate continuously with no downtime. Each additional battery pack ordered includes a 110V charger, so multiple packs can be charged simultaneously throughout the workday. Additional battery packs can be purchased when ordering an ES 1300, or they can be purchased separately.