Analyze how much energy and money are lost as heat and fixed consumption during your Blade battery charging process.
51.8
kWh45.6
kWh6.22 €
0.74 €
During the charging process of an electric car, not all energy paid at the socket actually ends up stored in the battery. There are three sources of unavoidable thermal and electrical losses:
The Atto 3 OBC converts alternating current (AC) from your home into direct current (DC). This process has an optimal physical efficiency of up to 92%. At low power levels (e.g., 6A), conversion is much more inefficient because of the ratio between useful power and the car's baseline consumption.
While the car is charging, the BMS, internal displays, and control units are active, consuming a permanent 200W to 300W. The slower the charge, the more hours the car will remain powered on and the more kWh will be wasted maintaining this baseline consumption.
The flow of current generates heat due to atomic friction both in the installation wiring and in the internal resistance of the Blade cells. This heat dissipation ($I^2 \cdot R$) increases as current rises, although it is more than compensated for by drastically shortening the total charging time.
The BYD Blade battery has a high-efficiency climatization system. If you charge below 5°C or above 35°C, the car will use thousands of watts to heat or cool the cells using its internal heat pump to ensure safe charging without degradation.