Water is the correct thing. There&#x27;s not much lithium, and there&#x27;s a lot of misconceptions around hybrid vehicles, for both firefighting and for extrication:<p><a href="http:&#x2F;&#x2F;www.firerescue1.com&#x2F;fire-products&#x2F;Extrication-Tools-Cutters-and-Spreaders&#x2F;articles&#x2F;1042752-Electric-and-hybrid-vehicle-response-safety-Myths-and-facts&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.firerescue1.com&#x2F;fire-products&#x2F;Extrication-Tools-C...</a><p>There are YouTube videos of consulting companies throwing battery packs into fishtanks with nothing more than a fizzle.<p>It used to be &quot;There are two voltage systems in a hybrid. You can cut the lines on one, but not the other&quot;. Not the case.<p>Really, the most dangerous aspect of a modern vehicle is HID headlights, and leaning in on a bumper where the arcing happens.