This guide uses approximate data. Charging speeds, prices, and compatibility depend on your specific vehicle variant, station hardware, and conditions. EVcourse is not affiliated with BYD or Mer. Always check your vehicle manual and the charger screen.
Quick Overview
Step by Step
Find a Mer station
Open the Mer app or use a charging map like PlugShare to find a nearby station. Before you drive there, check that the station has an available CCS2 connector and is currently working.
Start your session
Tap your bank card or phone on the charger's contactless reader to start. You can also use app or RFID.
Plug in the CCS2 connector
Take the CCS2 cable from the charger and connect it to your BYD SEALION 7's charging port. You should hear a click when the connector locks in. Your car's display will confirm the connection.
Charging starts
Once connected, your BYD SEALION 7 can pull up to 230 kW. On Mer chargers (up to 300 kW), your effective maximum is 230 kW. You will see the current power and estimated time on either the charger screen or your car's display.
Charging speed is fastest when your battery is between 10% and 50%. It gradually slows as the battery fills up. This is normal and protects battery health.
When to unplug
For the fastest experience, unplug at 80%. Charging from 80% to 100% takes almost as long as 10% to 80% on most EVs, including the BYD SEALION 7. On a road trip, stopping at 80% and driving to the next charger is usually faster than waiting for 100%. Check your vehicle's manual for charge limit recommendations.
Charging Speed on Mer
Your BYD SEALION 7 peaks at 230 kW DC. Mer chargers go up to 300 kW, but your car's onboard limit caps you at 230 kW.
Charging from 10% to 80% takes about 24 minutes under good conditions.
Actual speed depends on several factors: battery temperature (cold batteries charge slower), your current state of charge (charging slows above 50-60%), and how many other cars are sharing the same station. If other cars are plugged in at the same location, the charger may split power between them.
Payment Options at Mer
- Mer app. Download the app, create an account, and link a payment method. Start and stop sessions from your phone.
- RFID card. Use a charging card from Mer or a roaming provider to tap and start.
- Contactless payment. Tap your bank card or phone on the charger's payment terminal. No account needed.
Approximate ad-hoc price: 0.49 EUR/kWh. Actual prices vary by location and time. Subscriptions or roaming cards may offer lower rates.
Tips for Charging BYD SEALION 7 on Mer
- Charge to 80% for the fastest experience. Charging slows significantly above 80%, so stopping at 80% saves you the most time on road trips. Check your vehicle's manual for charge limit recommendations.
Stuck at the charger?
The free EVcourse app has step-by-step troubleshooting for real charging problems.
Get the free appRelated Guides
Having trouble? If something is not working at the charger, check our troubleshooting guide for BYD SEALION 7 at Mer.
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