Currently in progress
MyElectricCar
Having an Electric Car is beautiful, the BMW i3 is actually my first car. I love that it runs on electricity but I also hate that ChargePoint charges per hour. For the i3, it charges 6 kwatts/hour. But during the end of the charge, it decreases exponentially to like 1 kwatt/hour.
Lets say I pay $1 per hour to charge, and my BMW accepts around 20 kwatts. It will take around 3 hours to get a full charge. But with chargepoint tries to charge for 6 hours. Paying double the money. The extra 3 hours of charge was for the last 10%.
I created this Windows 10 app so that I can spend 50% less money on charging. The way it works is pretty simple, when it decreases charging output, I stop charging right away, so I can maximize the amount of energy going in for my money. It ends up charging 90%-95% of the vehicle.
How it is done
I currently reverse engineered the ChargePoint app to get access to the private APIs. It is technically not reverse engineering, I just man in the middled the ChargePoint iOS app to get acccess to the underlying APIs.
Then I used these APIs to crawl my charge status for my profile. Then after I rech the maximum charge for my money, I terminate the charge ASAP before I get charged more.
Future work
- Create a nicer interface. I am just coding for proof of concept, then I will make it pretty.
- Integrate into Cortana, so I can tell it, "Hey Cortana, whats my charge?"
- Get nice stats out of the charging.