People are rightly worried about their car batteries going flat because they aren’t driving as much as normal. The battery may lose power and ultimately become flat resulting in the engine not starting. Simply starting a car occasionally isn’t likely to help, in fact this may end up draining a weak battery.
There have been some major developments in Renault battery technology and the charging system over recent years, primarily due to the introduction of stop start technology and emission control which has driven this progress. Our more recent vehicles only charge when necessary to reduce emissions. When a vehicle is switched off they will all enter various levels of sleep mode to reduce current consumption, some of our vehicles have the added ability to cut circuits if the system detects poor battery levels.
As the government advice is only to drive when essential, drivers will have to rely on these trips to keep their batteries healthy. Ideally drive the vehicle for 20 minutes.
If you have more than one car it’s probably best to alternate between them for your essential journeys so they both get used. You should also consider driving the one with the older or weaker battery more often. These essential journeys will not only help the condition of the battery but will help keep the brakes clean and tyres in good condition.
If you keep your car in a garage, you may want to consider using a battery charger to maintain the battery at the correct charge level.
Information Correct at 7 April 2020.