With cold months coming, cars often suffer, the most common case is to have difficulties starting your Lexus ES in the morning with very low temperatures. Generally this is related to problems recharging the battery of your Lexus ES . There are some factors that can explain why your battery does not recharge properly anymore, and in this article we will try to help you to fix this problem that can prevent you from using your car. To do this, first we will explain how recharging your car battery works, then the different problems of recharging a Lexus ES, and finally how to recharge an empty car battery.


How does recharging the battery of a Lexus ES work?

Before we detail the different problems of recharging the battery on a Lexus ES , we will explain to you how its recharging system works so that you can discover the problems you are facing. A car battery works like a phone battery, it will store energy to start your Lexus ES , turn on your headlights, listen to music, lower your power windows… Nevertheless all these actions will consume energy and it may possibly deplete the energy reserve that your battery can store. To handle this problem, the engineers have designed a component called the alternator , this component will use the energy generated by the engine unit of your Lexus ES to create energy thanks to a copper coil and a magnet. This energy will recharge the battery of your car . Nevertheless, bear in mind that this process can only work when your car is running, using electrical components of your car when it is stopped will decrease 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 Lexus ES’s battery

We will now describe the different battery charging problems on a Lexus ES 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 situations.

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

In this first circumstance, it is quite possible that your alternator is dead , in truth, if you control to recharge your battery with a charger and your Lexus ES to start, the problem obviously originates from your alternator which should not be able to create any more current.

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

Battery charging problem on Lexus ES: My battery is discharged although it is new

If you’ve just bought a battery and it discharges although you’re driving, the problem 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 fix the problem of battery charging on Lexus ES?

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

  • Defective alternator: You can try with simple 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, depending on your motor you will pay a few hundred euros. This repair is feasible in case your alternator is accessible.
  • Battery that no longer holds the charge: In such a 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 depending on your engine.
  • Ground in the electrical circuit: If you cannot start your Lexus ES 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 necessary.

How to recharge an empty battery of a Lexus ES

At last, to recharge the empty battery of a Lexus ES there are only few solutions, using a battery charger is the most efficient remedy, you can locate 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.

In the event that you have any additional questions about the Lexus ES, do not hesitate to consult our Lexus ES category.