The 900H Power is a 24V, Lithium-Ion battery operated, motorised evacuation chair. Designed for one-person operation, its Powered Belt Track System reduces manual handling and facilitates a smooth, safe and quick method of upward or downward evacuation. One full charge provides enough power to last for 150 flights of stairs, giving you complete peace of mind that you can evacuate the mobility impaired, upwards or downwards in an emergency. POWER your emergency evacuation with the 900H Power.