[Oleg Orel]

I wonder maybe somebody was doing a simple math - how log it takes to charge, I think I miss something:

My settings are that it charges only between midnight and 3PM, I have EV rate,

My plug is 240V, charger say 40 amp, here on forum someone wriote that Bolt 2019 does not take more than 32 AMP with Level 2 Charger.

At evening time I had 28 miles left, I plug it to charge.

How much I need time to charge for 240-28 = 212 miles?

Batary is 60 kWh, so what I need is 60/240*(240-28)=53 kWh.

Ok, time is 53000/(240*32)=6.9 hours after midnight, means at 7AM it shell be fully charged.

Well, at 8:32 am I found that current range is 202 miles.

 

[XJ12]

What's missing is your efficiency history. EPA rating uses 3.97 miles/kWh. If you're driving fast and/or it's cold out, you might be below the EPA efficiency assumption. Also, your charging isn't 100% efficient so you'll be getting about 95% of your 240*32.

 

[redpoint5]

Don't forget the taper too. I'm assuming the Bolt has a taper like my Prius does...

Then there could have been battery heating/cooling happening sapping even more energy from the charge.

 

[The Other Tom]

Forget the range estimate. It's only an estimate based on your past driving. What's important is how many kWh were added to your battery. What you do with those kWh will determine your range. So, What was your battery % at 8:32am?

 

[micantony]

was the battery 100% charged at 8:32am? that’s all that matters. miles is a factor of how you drive and conditions.

 

[Oleg Orel]

It was not 100%, it displayed if I remember correctly "Full charge will be at 9:30AM". When I disconnected my car it has 202 miles. How much percents it was.... When I add up miles remained and miles drove since last charge it is 226.

 

[p7wang]

As mentioned, use your app to get exact % of battery capacity.

At 32A, you should be charging about 6KW rate, so it will take about 10 hrs to go from 0% to 100%. For the last 5%, it tapers, so probably add another 30 min to the estimate.