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Rapid Charging: Why Charging Your Electric Car May Not be as Rapid as You Think

Two of the fundamental pieces of knowledge anyone has with their electric car is how quickly it can charge and what types of connections it can use.

Drivers know that if they plug into, say, a CHAdeMO rapid charge station their car will take around 20 minutes to charge from 0 – 80 per cent but how true is this? More and more we are hearing about cases where this isn’t what happened and people have been plugged in much longer than they thought they would be.

We run down the most common reasons why below.
Battery temperature
The nearer the optimum your battery temperature the less throttling of power you’ll see.

The nearer the optimum your battery temperature the less throttling of power you’ll see.

The temperature of your car’s battery plays a big role in how fast it can be changed. Too cold and the charger will restrict the power flowing to it, too hot and it will do the same. It is true that on a 22C day in the middle of the UK summer a car may be able to charge from 0 – 80% in twenty minutes. But when the external temperature is 2C and was sub-zero over night, the charger just simply can’t put energy into the battery as fast.

Simply put, when it is too cold, your battery will take longer to fill up.
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