# Cutting the cost of fast charging: 7 practical tips > Fast charging costs more than charging at home, but the right card, a warm battery, stopping at 80 per cent and a charger that suits your car bring the bill down. Published: 2026-10-27 · Language: en · Source: https://laadpaalvinden.be/en/blog/cut-fast-charging-costs/ Fast charging is the most expensive way to charge, because you pay for speed. There is no need to avoid it. A few habits shrink the bill, and the difference can be bigger than you expect. The amounts below are worked examples based on assumed figures. Real prices differ by operator, card and time of day, so always check them in the app. ## First: do you pay per kWh or per minute? Many of these tips depend on how the charger bills you. With a price per kWh, you pay for the energy that goes into your battery, so a slow session costs no more. With a price per minute, you pay for time at the charger, and every minute saved counts. Check in the app which model the charger uses before you plug in. Some chargers also add a start fee or combine both. ## Compare prices before you start The same fast charger can have a different price depending on the charging card. Open the app or the page for your card and compare it with a second card, if you have one. It takes two minutes. For an overview of the differences, see [comparing charging cards](/en/blog/compare-ev-charging-cards/). ## Does a subscription pay for itself? Some cards charge a monthly fee in return for a lower price at fast chargers. You can work out whether it pays off yourself: 1. Find the monthly fee. 2. Find how much you save per kWh compared with the card without a subscription. 3. Divide the monthly fee by the saving per kWh. Say the subscription costs 5 euro a month and saves you 0.10 euro per kWh. The break-even point is then 50 kWh of fast charging per month. If you comfortably exceed that, you win. If you only fast charge a few times a year, you mostly pay for something you do not use. Prices and terms change regularly, so use today's figures. ## Do not charge further than you need to As the battery fills up, the charging power drops, so the last few per cent take a long time. Take a 60 kWh battery and a price of 0.40 euro per minute, both assumed: - From 10 to 80 per cent you add 42 kWh. At an average of 80 kW that takes just over 31 minutes and costs roughly 12.60 euro. That is 0.30 euro per kWh. - From 80 to 100 per cent you add 12 kWh. At an average of 30 kW that takes 24 minutes and costs 9.60 euro. That is 0.80 euro per kWh. Same car, same charger, almost three times the price per kWh. With a price per kWh those last per cent do not cost more, but you stand there longer and keep a charger occupied. More in [why charge to 80 per cent](/en/blog/why-charge-to-80-percent/) and [the charging curve](/en/blog/charging-curve-fast-charging-slows/). The exception: if a long stretch lies ahead and there is no other fast charger on your route, keep going. ## Arrive with a warm battery A cold battery charges more slowly. With a price per minute, you pay for that straight away. If the average is 50 kW instead of 80 kW, the same 42 kWh takes just over 50 minutes and costs about 20.20 euro instead of 12.60 euro. Many cars can pre-heat the battery when you set the fast charger as your destination in the navigation. Check the manual to see whether yours can and how to switch it on. This matters most in winter, after a short drive or after a night outdoors. More in [winter charging and range](/en/blog/ev-winter-range-and-charging/). ## Pick a fast charger that suits your car A 150 kW charger is only faster if your car can take that much. If yours tops out at 100 kW, the extra capacity does nothing for you. If the pricier charger also costs more per kWh or per minute, you pay for speed you do not use. Look up your car's maximum charging power and pick a charger that roughly matches. Browse the [fast chargers](/en/fast-chargers/) and the [map](/en/map/) to compare. ## Start full from home Charging at home is almost always cheaper than fast charging. If you can, start your trip with a full battery. Take a 300 km trip at 18 kWh per 100 km, assumed: that is 54 kWh. If you leave with 100 per cent instead of 40 per cent of 60 kWh, you charge 36 kWh less at the fast charger. If home electricity is 0.30 euro per kWh and fast charging 0.60 euro, that saves 10.80 euro. Your own consumption and prices will differ, but the reasoning is the same. More on consumption in [how much does a charge cost](/en/blog/how-much-does-charging-cost/). If you have no charge point at home, this works less well. See whether charging at work or at an ordinary AC charger nearby is an alternative. ## Avoid idle fees Many operators charge extra if you stay after the session has finished. Set a reminder in the app or your calendar so you are back in time. See [avoiding idle fees](/en/blog/avoid-idle-fees-charging/).