Electric car with a long stop - could anything happen to the battery? [ANSWER]

The current order to stay at home and not leave it unnecessarily led to the fact that the editors began to find out whether a prolonged stop would harm the electric car. There were also problems with the battery level. Let's try to collect everything we know.

Unused electric car - what to take care of

The most important information is as follows: don't worry, nothing bad will happen to cars... This is not an internal combustion vehicle that should be started at least once every two weeks so that the oil is distributed over the cylinder walls and that the first shaft movements are not “dry”.

General recommendation for all electricians: battery charge / discharge up to about 50-70 percent and leaving it at that level. Some cars (eg BMW i3) have large buffers in advance, so in theory they can be fully charged, however we recommend discharging the battery to the above range.

> Why is it charging up to 80 percent, and not up to 100? What does all this mean? [WE WILL EXPLAIN]

We add that there are many recommendations, which indicate values ​​from 40 to 80 percent. Much depends on the specificity of the cells, so we recommend sticking to the 50-70 percent range (compare to this or the video below).

Dlaczego? The large amount of energy stored in cells accelerates cell degradation and can also affect fluctuations in battery management system (BMS) readings. This is directly related to the chemical composition of lithium-ion cells.

We will not let the battery run down to 0 percent and in no case should you leave such a discharged car on the street for a long time. If our car has remote control functions (Tesla, BMW i3, Nissan Leaf) that we like, let's keep the battery in the recommended range.

If the 12-volt battery is already several years old, we can take it home and charge... 12V batteries are charged by the main traction battery while driving (but it also charges when the car is plugged in), so the longer the car is parked, the more likely it is to discharge. This also applies to internal combustion vehicles.

It is worth adding that the best information about when the car is parked for a long time can be found in his manual. For example, Tesla recommends leaving the car on, likely to avoid draining the battery and the 12V battery.

Initial photo: Renault Zoe ZE 40 connected to charger (c) AutoTrader / YouTube

This may interest you: