With winter coming, cars often suffer, the most common situation is to have difficulties starting your Porsche 911 in the morning with very low temperatures. In general this is related to problems recharging the battery of your Porsche 911 . There are several reasons that can show you why your battery does not recharge properly anymore, and today we will try to help you to solve this problem that can prevent you from using your motor vehicle. To achieve this, first we will show you how recharging your car battery works, then the different problems of recharging a Porsche 911, and at last how to recharge an empty car battery.


How does recharging the battery of a Porsche 911 work?

Before we describe the different problems of recharging the battery on a Porsche 911 , we will show you to you how its recharging system works so that you can understand the problems you are facing. A motor vehicle battery works like a phone battery, it will store energy to start your Porsche 911 , turn on your headlights, play music, lower your power windows… However all these actions will consume energy and it might 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 produced by the engine unit of your Porsche 911 to produce energy thanks to a copper coil and a magnet. This energy will recharge the battery of your motor vehicle . However, keep in mind that this process can just work when your car is running, using electrical elements 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 Porsche 911’s battery

We will now describe the different battery charging problems on a Porsche 911 you may be victim of. If your battery is not recharging because there is necessarily a problem in your electrical set up, we will now see the different situations.

Battery charging problem on Porsche 911: My battery is discharging regardless if I am recharging it with a specific charger

In this first case, it is quite possible that your alternator is dead , indeed, if you manage to recharge your battery with a charger and your Porsche 911 to start, the problem certainly comes from your alternator which should not be able to produce any more current.

Battery charging problem on Porsche 911: My motor vehicle shuts off and does not start regardless if I have charged the battery

If you have recharged your battery and you have been able to start your Porsche 911 but it switches off while you are driving and then does not start, the trouble with recharging the battery of your Porsche 911 is that your battery no longer holds the charge .

Battery charging problem on Porsche 911: My battery is discharged nevertheless it is new

If you’ve just bought a battery and it discharges while you’re driving, the problem most likely comes from your alternator. It cannot come 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 solve the problem of battery charging on Porsche 911?

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 verify it with a pressure gauge to discover if it’s producing power. If it doesn’t, replacing it is the best solution, based on your motor you will pay a few hundred euros. This fix is feasible in case your alternator is accessible.
  • Battery that no longer holds the charge: In this case, the purchase of a new battery is the just realistic solution. In actual fact, 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 Porsche 911 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 this case required.

How to recharge an empty battery of a Porsche 911

At last, to recharge the empty battery of a Porsche 911 there are just 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 just provide the energy needed to begin.

If you need more tutorials on the Porsche 911, go to our Porsche 911 category.