Our Long-Term Cadillac Escalade IQ Changed the Way We Think About EV Charging

There’s no one right way to drive an EV or to charge it, but with most of them offering similar range, you end up falling into a predictable habit. There’s a number on the battery gauge that starts to worry you, so you plug in as soon as possible. Our yearlong review 2026 Cadillac Escalade IQ’s enormous battery means your comfort number gets completely reset.

We Have the Receipts

We’ve had several long-term test EVs over the years, and in the past, we kept extremely detailed charging logs in order to understand how our editors used them. We’ve since simplified them significantly because we learned that every one was behaving the same way. Regardless of the vehicle, regardless of who was driving it, the data kept coming back the same. When the battery dropped under 50 percent, someone would plug it in and charge it to at least 80 percent. No matter how the vehicle was used, the averages would always come out the same. (48 percent, more often than not, was the magic number.)

The Cadillac Escalade IQ, though, breaks the equation. Whereas 50 percent battery in our long-term Tesla Model Y means around 150 miles of range, in the Cadillac it’s about 225 miles. By the time the Tesla is down to 20 percent and the warning light comes on, it has just over 60 miles of range left. The Escalade at 20 percent is still looking at nearly 100 miles.

As a result, I’ve had to relearn my charging schedule. I used to do a double take when I’d see the gauge drop below 50 percent and then see more than 200 miles left. Now I’m perfectly comfortable letting the battery run down below before I start thinking about plugging in. With so much range to work with and a decent commute, I can go weeks without charging. Or at least I could, in theory, if I weren’t doing so many road trips.

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More Power Means More Time

For all the Escalade IQ’s range and charging speed, it’s not a particularly efficient vehicle. GM didn’t solve the range problem with super-efficient motors, incredible feats of aerodynamics, or futuristic battery technology. The engineers just stacked two big battery packs on top of each other and wired them together. It’s not an elegant solution, but it is effective. I’ve taken to calling it brute-force engineering.

At 205 kilowatt-hours, it’s way bigger than any other passenger-car battery on the market (save the identical ones in other big GM electric trucks and SUVs). All that stored power means efficiency doesn’t matter all that much, which is good because so far, it’s averaging 1.9 miles per kWh. That’s only a little better than our long-term 2022 Rivian R1T pickup truck, which had twice as many motors and averaged 1.8.

The clever bit of engineering was wiring the two 400-volt batteries so that the system can run at 400 volts but accept 800 volts split between the two packs, allowing it to take as much power as a charging station can dispense. Still, as impressive as the Escalade IQ’s 350-kW peak charging speed is on paper, it doesn’t translate to super-quick charges in the real world because there’s so much battery to fill.

In our testing, it adds 137 miles of range in 15 minutes, which is a lot but also works out to about 29 percent of the vehicle’s estimated range. If you plug in at 20 percent and add 30 percent, you’re still only at 50 percent. After 30 minutes, the Escalade adds 220 miles of range, or 47 percent of its estimated range. Starting at 20 percent, that gets you to 68 percent. A 5 to 80 percent charge takes 42 minutes. In our Escalade IQ, I’ve quickly learned to start thinking in terms of miles, not percentages.

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More than 40 minutes to go from 5 percent to 80 percent battery is not at all quick by today’s standards, but it plays out better in the real world. If you started your trip with 100 percent battery and drove until it was nearly empty, you’ve gone nearly 400 miles in our experience. Another 220 miles is 620 total, or nearly eight hours of driving at 80 mph, not including stops. Rarely are we doing more than 600 miles in a day, so it’s less of a problem than it sounds like. And really, after 400 miles, a 30-minute break sounds nice, and it probably won’t even be that long because you rarely need another 220-plus miles of range to reach your destination.

That’s all assuming you’re fast-charging, of course. On a Level 2 charger like you might have at home or the office, charging the Escalade IQ takes forever if you go by battery percentages. An older 6.6-kW charger only adds 53 kWh of electricity to the 205-kWh battery after eight hours of charging, while a newer 7.2-kW charger nets 58 kWh in the same time period (newer, higher-power 9.6-kW or 11.2-kW chargers can bump those numbers to 77 kWh and 90 kWh, respectively, but those are uncommon, especially in public).

With most EVs, you can plug in at home the night before a road trip and be reasonably sure you’ll be at 100 percent before you leave in the morning. Not the Cadillac. Depending on how low it is, you might need to charge the whole day before or charge two nights in a row if you’re on a time-of-use billing plan like I am and it’s cheaper overnight. Likewise, it means sticking the car on the Level 2 charger at the hotel when you arrive doesn’t necessarily mean it’ll be full when you come out in the morning. As easy as it is to plug into a fast charger mid-road trip and add hundreds of miles of range while you use the bathroom, buy a soda, and check your notifications, getting fully juiced up before you get on the road, coming or going, still takes a little forethought.

It becomes a bigger challenge if you don’t have a charger at home like I do. Most people who have Escalade IQ money also have a house and the means to install one, but condo owners and apartment renters will either spend a lot of time at public L2 chargers or a lot of money at public fast chargers. I always charge to 100 percent before a road trip (even if it takes more planning than in other EVs), but not everyone has that luxury.

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More Power Means More Money

Then, there’s the matter of cost. So far, our Escalade IQ is averaging $0.28 per mile, nearly 60 percent more than our R1T. Part of that is increased prices at public fast-charging stations, public Level 2 stations, and in residential electricity rates in the last four years, but a big part is having to buy 50 percent more electricity to fill it.

Still, it’s better than paying for gas. According to the EPA, a four-wheel-drive Escalade V-8 costs $0.32 per mile and a more comparable all-wheel-drive Escalade V, which sports 682 hp and 653 lb-ft to better match the all-wheel-drive Escalade IQ’s 750 hp and 785 lb-ft, costs $0.40 per mile. Those figures are calculated using the national average price of premium gas, which means they’d be even higher for us here in California.

While the math checks out, it can still be jarring. If you’re used to seeing fast charging bills of less than $30 per session in a Tesla Model Y, bills approaching $90 when fast-charging the Escalade are tough to swallow. If you’re coming out of a gas-powered Escalade, though, you might be more than happy with double-digit fuel bills when a full tank currently runs about $120 for 24 gallons of premium (based on the current national average of $4.98 per gallon).

Thankfully, residential electricity prices are way, way lower than public fast charging stations. Even in California where prices are elevated, our average home and office charging bills generally come in under $30. Even stringing together a couple home or office charges to get from a low state of charge to a full battery doesn’t exceed $65 at the $0.35 per kWh I pay.

Note 9/25: This story has been updated with corrected figures following the discovery of a data error.

More on Our Long-Term 2026 Cadillac Escalade IQ:

• We're Testing a Cadillac Escalade IQ For a Year: Is It Cadillac’s Actual Halo Car?
• Our Long-Term Cadillac Escalade IQ Is the Ultimate Road Trip EV

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