Quote:
Originally Posted by broski499
I registered every fill-up with my 2008 Prius for 10 years on this site.
I recently switched to a Chevy Bolt and am trying to figure out how I can register the energy use.
Do you calculate how far you went and then how much energy you used on the odomoter trips? Charging up resets it. So each fill up with whenever you charge?
Curious how some of you are going about this.
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I have a 2017 Bolt. Charging does not reset my trip meter or efficiency ratings. I record trip meter mileage, efficiency (miles / kWh), and overall odometer reading the 1st of the month and then manually reset Trip A and the efficiency.
For actual kWh consumed I get that from my WallBox charger each month.
I don't track the charging I do at work for free but that has dwindled to almost nothing now that we have about 175 EVs and 24 free chargers. I don't use paid DC fast charging enough to bother and the ones near work are no longer free so I don't use them.
I have found that charging efficiency can vary wildly based on temperature, charger rate, and SOC when starting and finishing charging. I generally charge to 90% as that last 10% is very slow and inefficient.
In general:
- Charging with the 120V EVSE that came with the Bolt is inefficient - about 20% charge losses
- Just topping off after driving 5-10 miles is VERY inefficient. 42% charging loss
- Best efficiency (6% losses) comes when I charge from about 30% to 80% with my 240V WallBox.
- Colder ambient temp = more charging losses