Get extra time to clean that final patch of floor or just replace a worn-out battery with this Tineco replacement lithium-ion battery for S11 Series vacuums. It can be used as a fresh replacement while the included battery charges to gain up to 30 minutes of extra vacuuming time to tackle the last bits of a job, while a handy LED shows you its current charge status. | Tineco Replacement Lithium-Ion Vacuum Battery for S11 (9VSPT111300)