Introducing Portal: the app free solution to track your charging session & redeem offers

EV drivers have a common complaint: too many apps.  

Between navigation, charging networks, and vehicle software, there’s a sea of downloads between you and a successful charge. At Mercedes-Benz High-Power Charging, we take a different approach — one that prioritizes simplicity without sacrificing the experience. 

Tap to Pay and Plug & Charge already handle the basics: pull up, plug in, pay, go.  But even the smoothest session can leave drivers with questions. Why did my car charge slower than expected? How much did that actually cost me? When do idle fees start?  

The Mercedes-Benz High-Power Charging Portal was built to answer them. 

One QR code. No app. No account. 

Here’s how it works: you plug in, scan a QR code at the charger, and a lightweight web experience opens on your phone. No download required. Just a live window into your session. 

What you see in real time: 

• The car’s state of charge when you plug in and throughout the session  

• The amount of energy dispensed throughout the session 

• What your car is actually requesting versus what the charger is delivering 

• Offer redemption at any point during the charge 

• Running cost tracker   

• Session timer including a countdown to when idle fees kick in 

• Easy receipt retrieval  

• Quick links to share feedback or get support  

Information you’ve always deserved, offers you’ll actually want 

The Portal is a direct response to the questions EV drivers ask every time they plug in — questions that, until now, most charging networks couldn’t answer. 

You shouldn’t need to wonder whether your car is charging at full speed, or watch the clock nervously hoping to beat an idle fee. You should be able to see exactly what’s happening, in plain language, on the phone already in your hand. The Portal does that and if you’ve got a promo code, it’s redeemable right there in the session. No app required download. Just a better charging experience.