How to Recharge the Air Conditioner in a Car - wikiHow
Do-it-yourself auto air conditioning recharging requires eye protection, a charging kit, refrigerant, and some practical knowledge.Build a DIY Portable Air Conditioner - Summer - Lifehacker
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Instructables user CameronSS has a guide to building a portable air conditioner out of materials that you may already have in your garage (if you don't, he lists the average cost for each part and where it can be purchased), including a portable cooler, 12V battery, fans, and a generous helping of ice. Plenty of pictures and sage advice from his father guide you through the building process, and CameronSS ends the instructions with a list of potential modifications to improve the already great gadget.