With winter season coming, cars often suffer, the most common situation is to have troubles starting your Tesla Model S early in the day with very low temperatures. Generally speaking this is associated with problems recharging the battery of your Tesla Model S . There are some causes that can describe why your battery does not recharge correctly anymore, and in this article we will try to help you to resolve this issue that can prevent you from using your motor vehicle. To get this done, first we will describe how recharging your car battery functions, then the different problems of recharging a Tesla Model S, and at last how to recharge an empty car battery.

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How does recharging the battery of a Tesla Model S work?

Before we describe the different problems of recharging the battery on a Tesla Model S , we will describe to you how its recharging system operates so that you can understand the problems you are facing. A motor vehicle battery functions like a phone battery, it will store energy to start your Tesla Model S , turn on your headlights, enjoy music, lower your power windows… Nevertheless all these actions will consume energy and it might deplete the energy reserve that your battery can store. To overcome this issue, the engineers have developed a component called the alternator , this component will use the energy created by the engine of your Tesla Model S to generate energy thanks to a copper coil and a magnet. This energy will recharge the battery of your motor vehicle . Nevertheless, bear in mind that this process can only work when your motor vehicle 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 Tesla Model S’s battery

We will now describe the different battery charging problems on a Tesla Model S you may be victim of. If your battery is not recharging because there is actually a issue in your electrical installation, we will now see the different situations.

Battery charging problem on Tesla Model S: My battery is discharging even if I am recharging it with a specific charger

In this first circumstance, it is quite possible that your alternator is dead , indeed, if you control to recharge your battery with a charger and your Tesla Model S to start, the problem most certainly originates from your alternator which should not be able to generate any more current.

Battery charging issue on Tesla Model S: 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 Tesla Model S but it switches off although you are driving and then does not start, the issue with recharging the battery of your Tesla Model S is that your battery no longer holds the charge .

Battery charging issue on Tesla Model S: My battery is discharged although it is new

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

How to resolve the issue of battery charging on Tesla Model S?

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

  • Defective alternator: You can try with basic mechanics to verify it with a pressure gauge to discover if it’s producing power. If it doesn’t, changing it is the best solution, based on your motor you will pay a few hundred euros. This repair 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. In truth, if you have already recharged it but it is still empty because it is good to be replaced, count between 60 and 100 euros based on your engine.
  • Ground in the electrical circuit: If you cannot start your Tesla Model S 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 verify by a motor vehicle electrician is in such a case required.

How to recharge an empty battery of a Tesla Model S

At last, to recharge the empty battery of a Tesla Model S there are only few solutions, using a battery charger is the most efficient solution, you can find 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 start.

If you have any additional questions about the Tesla Model S, do not hesitate to consult our Tesla Model S category.