You plug in your electric car, check the app, and notice it's charging way slower than last time. No error. No warning. Just… slow. Sound familiar?
You're not alone. This is one of the most common questions EV drivers ask — and the good news is there's always a reason. Your car isn't broken. Once you understand what's happening, it actually makes a lot of sense.
Here are the most common reasons your EV charges slower sometimes.
- Your Battery Is Cold (or Too Hot)
This is the number one reason, especially in winter.
EV batteries don't like extreme temperatures. When it's cold outside, the battery becomes less efficient — like how your phone dies faster in the cold. To protect itself, the car automatically slows down charging until the battery warms up to a safe temperature.
The same thing can happen in very hot weather. If the battery overheats, the car slows charging down to cool things off.
What to do: If you can, park in a garage or shaded area. Some EVs also have a "pre-conditioning" feature that warms the battery before you plug in — check your car's app or settings.
- Your Battery Is Already Almost Full
Here's something most new EV drivers don't expect: the closer your battery gets to 100%, the slower it charges. This is completely normal and done on purpose.
Think of it like filling a glass of water. You can pour fast when the glass is empty, but as it gets full, you slow down to avoid spilling. The car does the same thing to protect the battery from being pushed too hard at the end.
Charging from 20% to 80% is always faster than charging from 80% to 100%.
What to do: For everyday use, try to keep your battery between 20% and 80%. Only charge to 100% when you really need the full range.
- The Charger You're Using Is Slower
Not all chargers are the same speed. There are two main types:
AC chargers (the slow ones) — These are the chargers you find at homes, offices, hotels, and parking lots. They're great for overnight charging but will take several hours to fill your car.
DC fast chargers (the quick ones) — These are the big chargers at dedicated charging stations. They can charge your car to 80% in 30–60 minutes.
If you're used to using a fast charger and suddenly use a regular one, it will feel much slower — because it is.
What to do: Use the iCharge map to filter chargers by speed before you go. You can find the nearest fast charger in just a few seconds.
- Your Car Has a Charging Speed Limit
Every EV model has a maximum charging speed it can accept. If your car can only accept 7kW of AC charging, plugging it into a 22kW charger won't make it charge faster — your car will still only take 7kW. The charger can offer more, but the car only takes what it can handle.
What to do: Check your car's manual or spec sheet to find out its maximum charging speed. This helps you pick the right charger for your needs.
- The Charging Station Is Busy
Some charging stations share power between cars. If several vehicles are charging at the same time, each one gets a smaller slice of the available power. This is more common during peak hours — like early morning or after work.
What to do: Try charging during off-peak hours if you can. Late morning or early afternoon tends to be quieter. The iCharge app shows real-time charger availability so you can see before you arrive.
- Your Car's Settings Are Limiting the Charge
Some EVs let you set a maximum charging speed or schedule charging for off-peak electricity hours. If these settings are active, your car might be throttling itself without you realising it.
What to do: Check your EV's app or dashboard settings. Look for "charging limits," "charge rate," or "scheduled charging."
Bottom Line
Slow charging is almost never a sign something is wrong. Your EV is designed to slow down charging to protect the battery and keep it healthy for longer. Once you know the reasons, you can plan ahead and get the fastest charge possible every time.
Using the iCharge app, you can always find the nearest fast charger, check if it's available, and start your session in seconds — so you spend less time waiting and more time driving.
Your EV charging slower than usual? Learn the real reasons — from battery temperature to charger type — and how to get the fastest charge every time.
Stop Waiting at the Charger
Find out why your EV is charging slowly and how to fix it fast
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