There have been some studies, but they are a couple years old and I think the technology has changed to the point that it's worth looking at again. I have too little of an understanding of the technology to weigh in. I did find a few articles at sites like Energy.Gov, CNET and others. The government study was with the Leaf, which doesn't have liquid cooling. The CNET article says; ""When you charge at five times the rate, you get 25 times the heating," explained Gow. And heat is the enemy of lithium ion batteries." And a couple other studies posted tables that shows what I would call a slight degradation in battery life, capacity, etc. However, again, they were not Bolt's. Here's what I would recommend; Charge it anyway you want. After 3 years, dump it. I for one, have things to do, so sitting for 15 minutes at a remote charge location, even if it's at the mall, my favorite restaurant, a strip club or the Lego Store is not what I want to do. Time is finite, don't squander it charging away from home. If you're worried about cost, trench a power line from the neighbor or install meter jumpers. They sell the jumpers on Amazon, I kid you not. When we colonize your area, you can always apply for subsidies.