Power Drive Alber Smoov is an electric power assist drive unit for active wheelchairs which signifcantly increases the driver‘s mobility and flexibility. General* Weight of the person Max. 140 kg Permissible total weight Max. 170 kg Climbing capability Up to 16 % Drive unit Motor power rating 250 W Max. motor power 450 W Operating voltage 36 V Speed 0–6 km/h (optionally up to 10 km/h) Battery pack (drive unit) Battery cells 36 V; 6.2 Ah Lithium ion cells, leakproof and maintenance-free 24 months guarantee Battery power 224 Wh Safe for air transportation according to IATA Range Up to 20 km, depending on the ground surface, the weight of the person, temperature and terrain Battery charger Input voltage 100–240 V Frequency range 50–60 Hz Output voltage 48 V (DC) Charging current 1 A Charging time Approx. 6 hours Weight Drive unit 7.2 kg Control unit 250 g Battery charger 500 g Control unit bracket Approx. 100 g** Crossbar/camber tube bracket Approx. 230 g** SUPPLIED WITH LITHIUM-