You’ve just pulled up to a charger that’s supposed to support Plug & Charge. Your car is meant to recognise the charger automatically, authenticate your account, and start charging without you touching your phone. Instead, you’re standing in a Tesco car park, rain dripping down your neck, opening yet another app. So what’s gone wrong?
Plug & Charge, also called Autocharge on some networks, promises to eliminate the faff of apps and RFID cards. The technology uses your car’s unique identification to automatically bill your account when you plug in. It sounds brilliant. In practice, it’s become one of the most frustrating gaps between EV promise and reality.
Why Plug & Charge Fails So Often
The technology itself is sound, it’s based on the ISO 15118 standard that allows your car and the charger to exchange encrypted data through the charging cable. Think of it like contactless payment for your car. But getting it to work requires three separate parties to play nicely together: your car manufacturer, the charging network, and often a payment processor in the middle.
The most common failure point is simply that one side hasn’t implemented the technology properly. I’ve tested Plug & Charge across a dozen networks over the past six months, and the success rate hovers around 60%. That’s not good enough when the alternative, tapping your phone, works 95% of the time.
Network issues cause many failures. Some chargers have older software that doesn’t support ISO 15118, even if the network’s newer units do. You might find Plug & Charge works perfectly at a brand new Gridserve forecourt, then fails completely at an older Gridserve hub installed three years ago. The networks don’t always make it clear which specific chargers support the feature.
Car manufacturers share the blame too. Some implementations are half-baked. The car might successfully authenticate but fail to initialise charging, leaving you staring at a “communication error” message. Other times, the car simply doesn’t attempt Plug & Charge at all, despite the feature being enabled in your settings.
Which Networks and Cars Actually Work
Tesla Superchargers remain the gold standard. If you’re driving a Tesla, Plug & Charge works roughly 98% of the time in my experience. You plug in, wait five seconds, and charging starts. It’s genuinely seamless. Tesla controls both the car and the network, which eliminates most of the integration headaches.
For non-Tesla vehicles, Ionity has the most reliable Plug & Charge implementation among the major networks. I’ve had consistent success with Porsche, Mercedes, and BMW models at Ionity sites. bp pulse has rolled out support across many of their 150kW and 300kW chargers, though success rates vary. Expect it to work about 70% of the time at bp pulse locations.
Gridserve supports Autocharge (their branding for the same technology) at their Electric Forecourts and many newer installations. Pod Point has been trialling it but coverage remains patchy. InstaVolt, frustratingly, doesn’t support Plug & Charge at all as of early 2025, despite having one of the most reliable networks otherwise.
On the car side, Porsche Taycan and Mercedes EQS models have the most mature implementations. The Volkswagen ID range supports it in theory but often fails to initiate the handshake. Hyundai Ioniq 5 and 6, and Kia EV6 and EV9, have gradually improved through software updates, but expect mixed results. Many Chinese manufacturers, including BYD and MG, don’t support ISO 15118 Plug & Charge at all yet, though this may change as the technology becomes more standardised.
Common Problems and Actual Solutions
If Plug & Charge isn’t working for you, first check it’s actually enabled. This sounds obvious, but the setting often lives three menus deep in your car’s interface, and some manufacturers disable it by default. You’ll also need to activate it in your car manufacturer’s app and link a payment method.
Many failures happen because your car is registered with one payment account, but you’re trying to use a different roaming agreement. If you set up Plug & Charge through Mercedes me Charge, for example, but you’re trying to use an Octopus Electroverse card at the same charger, the system gets confused. Stick to one method per charging session.
Network apps sometimes cache old data. If you’ve recently updated your payment details or changed vehicles, the charger might still be looking for your old information. The fix, annoyingly, is to manually start a session with the app once, which forces the network to refresh your account. After that, Plug & Charge often starts working again.
Cold weather can cause communication failures. If it’s below freezing and Plug & Charge fails, try unplugging, waiting 30 seconds, and plugging in again. The car and charger will attempt the handshake from scratch, which sometimes succeeds on the second try.
When Will It Actually Get Better
The honest answer is gradually, but not quickly. The technology won’t transform overnight because it requires charging networks to update thousands of individual chargers, not just flip a software switch. Networks are prioritising new installations, so older chargers might never get upgraded.
There’s some reason for optimism. The EU is mandating ISO 15118 support for new public chargers, which will push UK networks to adopt the standard more thoroughly. Car manufacturers are also improving their implementations through over-the-air updates. The Ioniq 5 I tested in 2024 failed Plug & Charge constantly. The same model in 2025, after several updates, succeeds far more often.
Realistically, expect reliable Plug & Charge at maybe 70 to 80% of compatible chargers by the end of 2026, assuming you’re driving a car with decent implementation. That’s good enough to try it first, but not good enough to ditch your charging apps entirely.
Should You Bother With It?
Yes, but keep your backup plan ready. When Plug & Charge works, it’s genuinely lovely. You plug in, pop into the services for a coffee, and come back to a charged car without once touching your phone. It’s the experience EVs should always have offered.
But carry your charging apps and make sure you’ve got mobile signal. Check Zapmap before you arrive to see if other users report Plug & Charge working at that specific location. And don’t be surprised when you still end up tapping your phone more often than you’d like. The technology is real and improving, but it’s not yet the effortless experience that gets advertised. For now, treat it as a nice bonus when it works rather than something you can actually depend on.