Walmart is moving quickly to make electric vehicle charging feel less like a special trip and more like just another item to tick off. As InsideEVs reports, the retailer now has more than 300 fast-charging ports at 50 stores in the United States, meaning some drivers can top off while grocery shopping, picking up prescriptions, or running regular household errands. What's happening? Walmart expanded its EV fast-charging network by about half in …