In an electric vehicle, there are two battery systems: a high-voltage battery that provides the power to drive the car down the road, and a traditional 12-volt system that powers the accessories when you initially turn the vehicle on. The high-voltage battery cannot be jump-started: don’t try, you could be hurt or killed. The 12-volt battery, on the other hand, can be! The process is identical to a regular car, except that it can only be done to “jump” the EV, and should not be used to export power to another vehicle. They typically have a pair of posts you can hook the jumper cables up to, which can be found by looking through the owner’s manual.