●Lithium Ion for long battery life and outstanding performance. Always ready holds a charge for up to 18 months ●Long life, Lightweight, and no memory effect.Suction Power 15.2 AW; Dustbowl Capacity: 20.6 oz. ●Replacement Filter for models: CHV1410L, CHV1410, CHV9610, CHV1210, CHV1410B, CHV1510 ●Replacing filters regularly helps improve the suction power of your vacuum