Expanding a bit on what others have posted ... If you do a lot of longer-range driving using DC fast charging, I suggest that you get a Tesla NACS adapter and pre-plan your route using plugshare or similar apps to select charge locations with best prices, fastest charging speeds, best reliability and least crowded, etc.
I last DC fast charged while traveled 600 miles (roundtrip) during Thanksgiving weekend. I chose a gas station/coffee-shop that was halfway to my destination as my a place to charge. Unfortunately, it was a busy and expensive place to charge. I paid 80-cents a KWH to charge (EvGo charge stalls); plus on my return trip, I had to wait 30-minutes for an available charger. In hindsight, with better planning there were better and cheaper DC fast chargers on my route, plus available Tesla NACS stations.
I bought a Tesla CCS to NACS adapter, they are plentiful and available on Amazon or eBay. If you do buy a Tesla adapter, I suggest you use the Tesla app to locate charge stations. Not all Tesla charge stations are available to non-Tesla owners and plugshare doesn't accurately report which Tesla stations are available to Bolt owners. Additionally, the Tesla app seems to do a good job of reporting in real-time what charging stalls are available, their charging speed and reporting accurate prices. Additionally, where I mostly travel (from upstate NY to NJ or downstate NY), Tesla's own Supecharger stations usually have 12+ (working) charging stalls while locations with DC fast charging stalls often have only 4 to 6 charging stalls and too often 1 or 2 of them are not working.
Note also, that many DC fast charging stalls are located in gas-stations, shopping malls, hotel parking lots, coffee-shops or restaurants (Dunkin Donuts, Seven-Eleven, WaWa, etc. ) and these establishments often sharing in the charging revenue and have input into setting the charging kwh rates (plus the initial hookup fee, the idle fee, the upcharge for busy times and the upcharge (or limit) for charging above 80% . Charging stalls in shopping malls or in hotel parking lots are often cheaper as they are more interested in you shopping in the mall or staying at their hotel and less needful of making money on your charging your car.
When looking at the time involved in DC fast charging,, I prefer to look at the big picture ...
1. - Charging at home (weekly), saves me 5 to 10 minutes a week as opposed to time spent going to a gas station. That's a lot of time saved, plus not needing to stand out in 10-degree weather while filling up on gas.
2. - Near instant heat. Having the Bolt heat up in 45 seconds every trip, as opposed to 5 to 10 minutes in a gas car is about 200 more toasty hours a year where my hands and testicles don't have to freeze.
3. - My Bolt saves me 20 - 30 hours a years of routine maintenance, most of which I did myself, so no oil-changes, spark-pugs, coil-packs, air-filters, serpentine belts, mufflers, flex-pipes, o2 sensors, catalytic-converters, annual brake work or trips to repair shops.
4. - Lastly, while on road trips, I usually charge from 20% to 80%. This takes me about 45 minutes. I'm 68 years old, so while on road trips, I too require a pit-stop every 2-3 hours to re-charge, so this actually ties in fairly well with the Bolt's range. So every 2-3 hours when I stop to charge, I use the bathroom, walk around a bit to loosen up my stiff bones and then buy a snack/coffee or a quick meal; so this usually consumes about 25 to 30 minutes of my 45 minute charging stop, so barely any bother at all.
When I add up all the time saved by owning a Bolt and I then compare it to the 10 times a year when I give back 3-4 hours in total time by DC fast charging, it certainly works out for me in a significant overall time savings, plus much added warmth, plus the $2000+ a year in cost savings.
In closing, as far as the high cost of DC fast charging, the more congested the area, the higher the charging rates. With a little advance planning, stopping 10-15 miles earlier or later, along the same planned highway route, will usually yield a a Tesla or DC fast charging station that is 20% to 40% cheaper and less crowded.
In a year or two, this problem will lessen and soon disappear. Charging stalls are being installed at a rapid rate. Soon many gas-stations, shopping malls, major retailer (Costco, etc.) will have fast charging stations. Plus, as another commenter pointed out above, many cities, states and municipalities are installing charging stalls. I live in upstate NY, NY state has installed roughly 60 charging stations (perhaps 500 charging stalls total) under the moniker of EvolveNY. Most EvovleNY charging stalls were placed in smaller cities and towns. Most states, counties and towns are doing likewise. The "welcome center" of my county has free DC fast chargers (which don't appear on regular PlugShare searches). Many local colleges (within 3-4 miles of me), have low-priced (10-15 cent per KWH) or free chargers. Tesla just lowered their prices in many locations, citing competition as one of their reasons. I have no perfect crystal ball, but it seems that many more available, cheaper and faster charging locations are coming online rapidly, even in more rural areas.
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