Bolts are 100% electric w/ 60 KW battery. The 2020 Bolts have a 66 KW Battery.
It charges up about 4 miles/ hour. Slow I agree, but 4 x 24 hours = 96 .... almost 100 miles/ 24 hours. This charging rate is just fine for me and I find no need to install a 220 volt/ faster charging station. I have had the car 2 years and purchased new. Ball park $'s, the car was 40k, discounted about 10k, minus $7500 tax credit, minus $2500 cash back from the state of Oregon = 20K TOTAL. The 7500 tax credit has expired, the State cash back still exists.
I really love this car and is my main mode of travel and everyday of use. Wave of the future.😀. There has been a recall on my car regarding the battery. But the 2020's have no recall if you are tempted to buy one.