You pull up to an ultrafast charging station, plug in the cable, and the charging power crawls up only sluggishly. Often the culprit isn’t the station, but the temperature of your battery. This is exactly where EV preconditioning comes into play.
It makes sure your battery is at operating temperature at the right moment, so you can tap into the full charging speed!
Preconditioning describes the targeted temperature management of your drive battery before you charge or set off. Your vehicle actively brings the battery into its ideal temperature window. Depending on the outside temperature, it either preheats the battery or cools it down. In winter, preheating your EV battery clearly takes centre stage, because a cold power pack drags down both your range and your charging speed.
In short: prepping your battery for fast charging means putting it into the state where it can absorb the most power in the shortest time.
Lithium-ion batteries work best in a narrow temperature range of roughly 68°F to 104°F (20–40°C). Within this window, the lithium ions move easily, the internal resistance stays low, and the cells take on energy quickly.
As the temperature drops, that changes noticeably. The electrolyte gets thicker, the ions migrate more slowly, and the internal resistance rises. The battery management system (BMS) responds and throttles the charging power as a protective measure. Charge a cold battery at full power, and you risk so-called lithium plating: metallic lithium deposits on the anode, which permanently reduces capacity. So the throttling isn’t a defect, it’s a safeguard for a long battery life.
Modern EVs use several ways to bring the battery up to temperature:
You can kick it off in two ways. Either preconditioning runs automatically as soon as you enter a fast charging station as your destination in the navigation system: the vehicle calculates the arrival time and starts heating in good time. Or you activate it manually at the push of a button or through the manufacturer’s app.
The effect is clearly measurable. An ice-cold battery often takes on only a fraction of its maximum power. At a 300 kW station, you might end up with a meager 50 kW. A preconditioned battery, on the other hand, taps the full potential of the charging station and reaches a multiple of those values. Concretely, that brings the following benefits:
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=> Find them in our charging guide!
A few simple habits get the most out of it. Plan your route through the navigation system and select the charging station as your destination. That way the vehicle handles EV preconditioning on its own. If no automatic process is available, start preheating your EV battery manually about 20 to 40 minutes before the charging stop.
A practical tip: preheat the battery while the car is still connected to your home wall charger. Then you draw the energy from the grid instead of from the battery and start the day with full range and a perfectly tempered pack.
Smart preconditioning only unfolds its strength where the infrastructure keeps up. That’s exactly what JOLT delivers: ultrafast charging with up to 320 kW, right downtown! You top up as much as 200 km of range in just ten minutes. So it pays off for everyone who wants to turn a tempered battery into real speed.
Thanks to integrated battery storage, we connect our charging stations to the standard low voltage grid without costly grid extensions, bringing peak performance straight into the city center. You prep your battery, we deliver the power.
Find a JOLT charging station near you now and experience how EV preconditioning turns into real charging speed!
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