{"product_id":"ultra-capacitor-car-9781958398470","title":"Ultra Capacitor Car","description":"\u003cb\u003eUltraCapacitor Car\u003c\/b\u003e: \u003cb\u003eBuild a high performance electric car that runs without a battery!\u003c\/b\u003e The kit contains a 7 farad ultracapacitor, motor, wires, car base, car body, decals, wheels, axles, gears, washers and battery band. \u003cp\u003e\u003c\/p\u003eUsing an ultracapacitor instead of a battery, your car can accelerate almost instantly to race-car speeds. Ultra capacitors can be charged very quickly and be recharged 100,000s of times without wearing out. The energy density of \u003cb\u003eultracapacitors, also called supercapacitors\u003c\/b\u003e, may be approaching that of lithium batteries. Stay tuned.\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003eWhen fully charged these cars are high speed and will even bounce off walls\u003c\/b\u003e. To hold them together under such conditions, you might want to apply a strong glue, not provided in the kit.\u003c\/p\u003e\u003cbr\u003e","brand":"Sciencewiz","offers":[{"title":"Default Title","offer_id":50930128683282,"sku":"9781958398470","price":9.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0831\/4771\/8930\/files\/img_26e0092e-4a9b-4cce-a8aa-5399ce2b79ec.jpg?v=1739064080","url":"https:\/\/surprise-castle.myshopify.com\/products\/ultra-capacitor-car-9781958398470","provider":"Surprise Castle","version":"1.0","type":"link"}