The batteries of an electric car must be looked after well. They are the heart of the entire system, and must be recharged on a regular basis, daily if needed. Following just a few rules makes it possible to protect the battery, extend its service life and minimise the loss of capacity.
The lithium-ion batteries installed in electric cars should not be discharged completely, nor should they be charged to 100 per cent. Both can damage the battery cells. The battery level should ideally always be between 20 and 80 per cent of maximum capacity. The battery will also be protected if you charge it at home using a wall box or at a public charging station without too much power. Fast charging with a lot of power is not good for the battery over the long term. Ideally, the battery should be charged at night when electricity is cheaper.
If an electric vehicle is not used for a longer period of time and is not driven for weeks or even months, the battery should still be charged. The ideal battery level is between 50 and 60 per cent.
In winter when it is cold, the battery should be charged immediately after use, while the system is still warm.
