Plug it into the wall. Fully recharges in about 6 hours. Recharge from your car 12V adapter in about 4-6 hours. Once the Yeti 150 is fully charged it stores enough power to charge your phone 15 times over; your digital camera, 12 times; your GoPro, 25 times; your laptop, 2 times...
They keep your ice for about 12-15 hours max. These aren't the Yeti style coolers that you take on a weekend trip. And if you need ice on the golf course for 12 hours, then you aren't drinking your beers fast enough...and that calls for a totally different discussion! Cobra ...