EV Battery packs are generally recycled (or stored in a breakers yard) instead of repurposed, even though they have a lot of life left in them. Thankfully, there is a thriving open-source project by DalaTheGreat called Battery-Emulator which aims to allow enthusiasts to connect these used EV battery packs to off-the-shelf solar inverters, enabling cost-effective home battery storage systems to be created all while keeping users safe from the high-voltage energy contained inside the packs.

As of now, the project supports 23 different EV battery protocols from various manufacturers and 14 different inverter protocols. You can connect your choice of battery to your choice of inverter!

In this talk I will introduce the Battery-Emulator project and share the story of how I reverse engineered a 90kWh battery pack from a Jaguar i-Pace, using open-source tools such as SavvyCAN and the Canable USB-CAN adaptor to implement support for the battery in the project for everyone to enjoy !