Sovereign Power Assist SKU: 43428 The Power Assist for use with the Sovereign Wheelchair is available in two sizes: 180W (43428) and 320W (43429). It features a durable aluminium frame with PU grey wheels and comes complete with a mounting kit, controller, battery, and charger for easy installation and use. Log in to see price Quantity discounts available QuantityPrice Quantity -+ Details Product FeaturesTwo sizes available: 180W (43428) and 320W (43429). Aluminium frame with PU grey wheels. Includes controller, battery and charger. Details Back DetailsProduct FeaturesTwo sizes available: 180W (43428) and 320W (43429). Aluminium frame with PU grey wheels. Includes controller, battery and charger.