Up for sale is a gently-used Spinergy ZX-1 add-on power unit for a manual wheelchair.  This unit was recently factory serviced, and a new controller was installed at that time.  This is a one-owner unit, and has been well-maintained.  This unit will need new batteries however; due to extended storage during which time the batteries were not routinely charged.  This unit will run on either lithium-ion batteries in order to get extended range, or it will run on standard sealed lead acid batteries.  A new battery charger is included with this unit as well.  This unit is setup for a manual wheelchair with 24” wheels.  Please note, the manual wheelchair must be a rigid-frame wheelchair with a straight-axle camber tube in order for the power unit to attach properly.  The unit comes with a deluxe travel case on wheels.  Asking $3,000 or best offer.  Buyer to pay shipping charges,