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You are halfway through a journey, and it is time to think about charging. One station offers 350 kW, but getting there means leaving the motorway. Another offers 150 kW at the next services, where you could also grab lunch.
The bigger number looks tempting. But will it actually get you to your destination sooner?
Choosing a public charger is less about finding the most powerful hardware and more about finding the right stop. Your car, your route and your passengers all have a say. Including whoever needed the toilet ten minutes ago.
Start with the next leg, not a full battery
Before comparing chargers, ask what you need the stop to achieve. Enough energy to reach your hotel? A short top-up before home? Or a substantial charge before another long stretch?
Your current battery percentage is useful, but the predicted charge level on arrival matters too. Speed, weather and driving conditions affect consumption, so treat the range estimate as guidance rather than a promise.
Leave a margin that gives you options, including reaching an alternative charger.
Also check what happens at your destination. Confirmed overnight charging can change what you need en route. A charger icon beside a hotel is not the same as confirmation that you can use it.
There is no need to chase 100% at every stop. Charging generally slows as the battery fills, and the upper part of the charge can take disproportionately long.
But 80% is not a universal finishing line either. Charge further when the next leg requires it; leave earlier when you already have enough, with a sensible reserve.
Match the charger to what your car can actually use
The power shown on a charger is its advertised maximum, not a guaranteed rate for your session. Your car has its own limits, and its charging rate also depends on battery level and temperature. A brief peak is not the same as power sustained throughout the stop.
Check AC and DC capability separately. A car limited to 11 kW on AC cannot take 22 kW simply because the charging post offers it. Broadly, DC suits a quick top-up, while AC can work well when you are parked for several hours.
Where supported, battery preconditioning helps prepare the battery for DC charging. Follow your vehicle’s instructions: some cars require you to select the charger in the built-in navigation to activate this automatically.
Some sites also share available power between charging points, so another vehicle plugging in can affect the rate. Compare estimated charging time for your car and your intended charge level, rather than ranking stations by headline power alone.
Low battery, a long stretch ahead and little time to spare? When your car can use the available power, a high-power charger can absolutely be the right choice.
Count the whole stop
“Nearest” and “quickest to reach” are not necessarily the same. A station just across the motorway might require another junction and a loop back.
Likewise, five minutes saved while charging can disappear in a fifteen-minute detour. Think in terms of:
Extra driving + queueing + getting the session started + charging.
Include the return to your route in that extra driving. Charging during lunch also beats charging first and stopping again for food.
For a quick coffee, prioritise a short, straightforward stop. For a longer break, ask whether a suitably located charger can provide the energy you need before you would leave anyway.
Compare the bill, not just the unit rate
A price per kWh tells you the cost per unit of energy. Depending on the tariff and location, time-based charges or parking costs may also apply. Some time-based fees start after a set connection period, even while charging continues. The app, card or payment arrangement you use can also change the price at the same charger.
Check the terms for the payment method you actually intend to use. A lower energy price may not justify a long detour, while a higher-powered charger is not automatically more expensive.
Check that the stop works in practice
Look beyond the map pin. Check compatible connectors, current availability, access hours and how you will start the session. Live maps and station details can help you narrow the options.
Treat “available now” as a snapshot, not a reservation for your arrival. A site with several compatible charging points gives you more options than a single-point location, but neither removes the need for a reachable backup.
Check the human details too. Is the café actually open? Can you walk safely to the toilets? Will you need to move the car before you have finished your meal?
Three trips, three different answers
These are illustrative scenarios, not claims about particular stations.
The quick top-up on the way to the coast
You only need enough energy to finish the journey with a comfortable reserve. Your car accepts a maximum of 100 kW on DC, and you are comparing compatible 150 kW and 350 kW chargers.
Neither can make the car exceed its own limit. With access, available power and waiting time otherwise comparable, there is no automatic speed advantage in choosing the 350 kW option. Location and price may settle the decision instead.
The family lunch stop
Everyone is ready for a 45-minute break. One charger is estimated to provide the energy you need in 30 minutes; another could do it in 20, but has nowhere suitable to eat nearby.
The second option wins the charging race, not necessarily the journey. Choosing the first could combine both jobs in one stop. Check the charging and parking terms, and be ready to move the car when appropriate.
The weekend city break
You will not need the car again until tomorrow, and your accommodation has confirmed that you can charge there.
Provided you can arrive with a sensible reserve, a separate rapid-charging stop may be unnecessary. Check whether the available charging time and your car’s AC capability will cover tomorrow’s needs. Sometimes the smartest stop is one you do not add.
Let software help with the shortlist
This is the sort of decision software can simplify. EV.app’s best.match, for example, helps find a charger suited to your car and preferences. The useful part is not another long list of locations, but help finding one that fits your situation.
Your before-you-turn-off checklist
- Energy: Will this cover the next leg, with a reserve?
- Time: What is the total detour and expected stop?
- Compatibility: Can your car use the connector and available power?
- Cost: Have you checked all applicable charges?
- Access: Is it usable, and is there a reachable backup?
- Your plans: Can charging happen during a break you already need?
The best public charger might be the fastest one. It might also be the convenient one beside lunch, or the slower one where you are staying overnight.
Choose the stop that improves the journey, not just the number that looks best on a map.