How long does it take to charge the BYD Song Plus DM-i?
3 Answers
The BYD Song Plus DM-i takes 30 minutes to charge from 30% to 80%, and only 40 minutes to charge from 15% to 80%. Portable car charger: When purchasing the car, the 4S dealership will provide a 10A plug-in portable charger that can be directly connected to a standard household socket for charging. However, the charging speed is relatively slow, with an actual charging power of around 1.5KW, meaning it charges 1.5 kWh per hour. Home charging station: When purchasing the car, some 4S dealerships also provide a 16A 3.3KW home charging station. The actual charging power for the Song Plus DM-i ranges between 2.6KW and 3.2KW. Taking the median value of 3KW, it charges 3 kWh per hour, which is twice as fast as the provided portable charger.
I've been driving the BYD Song PLUS DM-i for a while now, and the charging time depends on the charger used and the battery size. The standard small battery version has about an 8.3kWh capacity and takes 4-6 hours to charge using a 1.5kW household socket. If you upgrade to a wall-mounted 3.3kW charger, it takes about 1.5-2 hours. The large battery version with 18.3kWh takes longer to charge, possibly up to 8 hours with home charging, but switching to a fast charging station supporting 7kW can charge most of the battery in about half an hour. I usually plug it in at night and unplug it in the morning to drive in pure electric mode, which can cover over 50 kilometers and save on fuel costs. Temperature changes also affect the speed, like being slightly slower in winter, but the difference isn't significant. In short, planning your charging habits makes driving smoother and more convenient. I recommend not skimping on charging equipment—safety and quality should come first.
Charging time calculation is quite simple: divide the battery capacity by the input power to get an approximate duration. For the BYD Song PLUS DM-i, the small 8.3kWh battery takes about 5 hours with a 1.5kW home charger, while the larger 18.3kWh battery extends to 9 hours. Switching to an efficient 3.3kW charger can reduce this to 2-4 hours, and certain versions support 7kW fast charging, replenishing most of the battery in 20-30 minutes. Don’t be intimidated by the kilowatt unit—it simply means faster charging equals shorter times. In practice, efficiency losses and temperature variations (e.g., a 10% drop in efficiency in cold weather) may slightly prolong charging. Proper charging management protects battery lifespan: occasional slow charging, avoiding full charges every time, preventing overheating, and regularly checking for wire aging ensure safety.
