With winter months coming, cars tend to suffer, the most general scenario is to have troubles starting your Subaru Legacy in the morning with very low temperatures. Generally speaking this is associated with problems recharging the battery of your Subaru Legacy . There are several causes that can describe why your battery does not recharge effectively anymore, and today we will try to help you to resolve this problem that can prevent you from using your car. To achieve this, first we will describe how recharging your car battery functions, then the different problems of recharging a Subaru Legacy, and at last how to recharge an empty car battery.


How does recharging the battery of a Subaru Legacy work?

Before we summarize the different complications of recharging the battery on a Subaru Legacy , we will describe to you how its recharging system operates so that you can figure out the complications you are facing. A car battery functions like a phone battery, it will store energy to start your Subaru Legacy , turn on your headlights, enjoy 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 handle this problem, the engineers have produced a element called the alternator , this element will use the energy produced by the engine unit of your Subaru Legacy to produce energy thanks to a copper coil and a magnet. This energy will recharge the battery of your car . Nevertheless, consider that this process can only work when your motor vehicle is running, using electrical components of your car when it is stopped will drain the energy reserve of your car. It is considered that a battery of a xxx has a life span of 3 to 5 years.

Problems recharging a Subaru Legacy’s battery

We will now describe the different battery charging complications on a Subaru Legacy 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 Subaru Legacy: My battery is discharging regardless if I am recharging it with a particular charger

In this first circumstance, it is quite possible that your alternator is dead , obviously, if you manage to recharge your battery with a charger and your Subaru Legacy to start, the problem most certainly originates from your alternator which should not be able to produce any more current.

Battery charging problem on Subaru Legacy: My car shuts off and does not start regardless if I have charged the battery

If you have recharged your battery and you have managed to start your Subaru Legacy but it switches off while you are driving and then does not start, the issue with recharging the battery of your Subaru Legacy is that your battery no longer holds the charge .

Battery charging problem on Subaru Legacy: 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 probably originates 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 resolve the problem of battery charging on Subaru Legacy?

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

  • Faulty alternator: You can try with basic mechanics to check it with a pressure gauge to discover if it’s producing power. If it doesn’t, replacing it is the best remedy, 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 only realistic remedy. Obviously, 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 Subaru Legacy 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 car electrician is in this case required.

How to recharge an empty battery of a Subaru Legacy

At last, to recharge the empty battery of a Subaru Legacy there are only few solutions, using a battery charger is the most efficient remedy, 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.

To discover more tips on the Subaru Legacy, take a look at the Subaru Legacy category.