Joined
·
325 Posts
I've been refining my Bolt EV charging models and, with recent 100kW DCFC data from Norway, I now have a better set. These graphs may help people understand the Bolt EVs DC fast charging performance. It's important to note that these models assume optimal conditions; which are rare for us to normally experience due to factors like battery starting temperature, ambient temperature, and some charging cycles limited to 30 min; so our charging times will be a little bit longer.
For reference:
125A is a typical "50kW" charger and most pervasive
100A is sometimes called a 50kW charger but EVs stop charging around 400V so our cars would never see 50kW from them.
60A is a 24kW charger
Also, the 125A charging model shows that 90 EPA miles are gained in 32 minutes and 160 EPA miles are gained in 59 minutes. Compare this to the GM-stated DCFC performance on Chevy EV Life:
"Up to 90 miles of range in about 30 minutes of charge"
"DC Fast Charging will restore up to 160 miles in about an hour"
It seems that under optimal conditions, those specs can be met with a 125A charger.
For reference:
125A is a typical "50kW" charger and most pervasive
100A is sometimes called a 50kW charger but EVs stop charging around 400V so our cars would never see 50kW from them.
60A is a 24kW charger
Also, the 125A charging model shows that 90 EPA miles are gained in 32 minutes and 160 EPA miles are gained in 59 minutes. Compare this to the GM-stated DCFC performance on Chevy EV Life:
"Up to 90 miles of range in about 30 minutes of charge"
"DC Fast Charging will restore up to 160 miles in about an hour"
It seems that under optimal conditions, those specs can be met with a 125A charger.



