Use your Power Furniture free from the constrictions of power cables with this Lithium-Ion Battery Pack Power Supply. Up to 150 Cycles on single Charge. **Please Note powered cup holders or handsets with touch sensors, backlit display, LED light or USB function will draw additional power and will drastically reduce the life of the battery pack to as low as 3 days between charges. The complete open and close of chairlift mechanism is one cycle. This Battery Pack Will Charge from any 2 Pin Style Power Supply.This does NOT come with a charger. This will charge from existing power supply that has this 2 pin style connector. Contact Customer Service For Additional Information and Bulk Pricing.