With winter months coming, cars often suffer, the most common case is to have troubles starting your Renault Laguna 3 early in the day with very low temperatures. Generally this is associated with problems recharging the battery of your Renault Laguna 3 . There are several reasons that can describe why your battery does not recharge effectively anymore, and in this article we will try to help you to solve this problem that can prevent you from using your motor vehicle. To get this done, first we will describe how recharging your car battery works, then the different problems of recharging a Renault Laguna 3, and at last how to recharge an empty car battery.

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How does recharging the battery of a Renault Laguna 3 function?

Before we describe the different problems of recharging the battery on a Renault Laguna 3 , we will describe to you how its recharging system operates so that you can figure out the problems you are facing. A motor vehicle battery works like a phone battery, it will store energy to start your Renault Laguna 3 , turn on your headlights, play music, lower your power windows… Nevertheless all these actions will consume energy and it may deplete the energy reserve that your battery can store. To get over this problem, the engineers have designed a component called the alternator , this component will use the energy generated by the engine unit of your Renault Laguna 3 to create energy thanks to a copper coil and a magnet. This energy will recharge the battery of your motor vehicle . Nevertheless, keep in mind that this process can only work when your car is running, using electrical components of your motor vehicle when it is stopped will drain the energy reserve of your motor vehicle. It is considered that a battery of a xxx has a life span of 3 to 5 years.

Problems recharging a Renault Laguna 3’s battery

We will now describe the different battery charging problems on a Renault Laguna 3 you might be victim of. If your battery is not recharging because there is necessarily a problem in your electrical installation, we will now see the different cases.

Battery charging problem on Renault Laguna 3: My battery is discharging even if I am recharging it with a particular charger

In this first case, it is quite possible that your alternator is dead , in fact, if you control to recharge your battery with a charger and your Renault Laguna 3 to start, the problem most certainly comes from your alternator which should not be able to create any more current.

Battery charging problem on Renault Laguna 3: My motor vehicle shuts off and does not start even if I have charged the battery

If you have recharged your battery and you have managed to start your Renault Laguna 3 but it switches off although you are driving and then does not start, the trouble with recharging the battery of your Renault Laguna 3 is that your battery no longer holds the charge .

Battery charging problem on Renault Laguna 3: My battery is discharged nevertheless it is new

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If you’ve just bought a battery and it discharges although you’re driving, the problem most likely comes from your alternator. It cannot result from your battery, which is new and therefore holds the charge. The second possibility is that you have a ground somewhere in your electrical system.

How to solve the problem of battery charging on Renault Laguna 3?

We will now give you the solutions according to the problem you are facing. Here are the different problems and their solutions:

  • Faulty alternator: You can try with basic mechanics to check it with a pressure gauge to find out if it’s producing power. If it doesn’t, replacing it is the best solution, depending on your motor you will pay a few hundred euros. This fix is feasible in the event that your alternator is accessible.
  • Battery that no longer holds the charge: In this case, the purchase of a new battery is the only realistic solution. Obviously, if you have already recharged it but it is still empty because it is good to be changed, count between 60 and 100 euros depending on your engine.
  • Ground in the electrical circuit: If you cannot start your Renault Laguna 3 but your alternator and battery are in good condition, it is possible that you have a ground on your wiring harness and that you lose energy, a check by a motor vehicle electrician is in this case necessary.

How to recharge an empty battery of a Renault Laguna 3

At last, to recharge the empty battery of a Renault Laguna 3 there are only few solutions, using a battery charger is the most efficient solution, you can discover some for 50 to 100 euros at vendors like Oscaro. In any other case you can use cables that will only provide the energy needed to begin.

If you need more tutorials on the Renault Laguna 3, go to our Renault Laguna 3 category.