The rechargeable battery kit is a new addition to the ConSet range and is compatible with all ConSet desks except 501-11 and 501-23.When using battery kits on height adjustable desks on wheels you'll achieve flexibility without compromising on ergonomics. The battery can also be used for desks where wires would simply just be in the way and is easily mounted on existing desks. The battery kit includes a charger and resembles that of a battery drill. Used in a conventional office setting, the battery will only need to be charged for approximately 2 hours every 2-4 weeks. This is an environmentally friendly type of battery. Additional batteries can be purchased.