Month: March 2025

Old Bolt, new tricks: Making an EV into a backup power station with an inverter

Using a custom kit to make a budget EV offer some emergency power.

Back when EV enthusiasm was higher, there were fits and starts of vehicle-to-home concepts and products. If EVs and their ginormous batteries are expensive, resource-intensive purchases, the thinking went, maybe we should get something more out of them than just groceries and school pick-ups. Maybe we could find other things for that huge battery to do during the 95 percent of time it spends parked in or near our homes.

An EV powering your whole home, or even pushing power back to the grid, is something higher-end EVs might do at some point with some utilities. I have a Chevy Bolt, an EV that does not have even a three-prong 110 V plug on it, let alone power-your-home potential. If I wanted to keep the essentials running during an outage, it seemed like I needed to buy a fuel-based generator—or one of those big portable power stations.

Or so I thought, until I came across inverter kits. Inverters take the direct current available from your vehicle's 12V battery—the lead-acid brick inside almost every car—and turns it into alternating current suitable for standard plugs. Inverters designed for car batteries have been around a long time (technically, the "cigarette lighter" port on a car is an inverter), opening up both novel and emergency uses. The catch is that you have to start the car's gas engine often enough to keep the battery charged.

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