With winter weather coming, automobiles tend to suffer, the most basic situation is to have troubles starting your Lexus RX in the morning with very low temperatures. Generally speaking this is associated with problems recharging the battery of your Lexus RX . There are several causes that can explain why your battery does not recharge effectively anymore, and today 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 explain how recharging your car battery functions, then the different problems of recharging a Lexus RX, and at last how to recharge an empty car battery.

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How does recharging the battery of a Lexus RX function?

Before we summarize the different problems of recharging the battery on a Lexus RX , we will explain to you how its recharging system operates so that you can understand the problems you are struggling with. A motor vehicle battery functions like a phone battery, it will store energy to start your Lexus RX , turn on your headlights, enjoy 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 overcome this issue, the engineers have produced a element called the alternator , this element will use the energy produced by the engine unit of your Lexus RX to produce 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 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 Lexus RX’s battery

We will now describe the different battery charging problems on a Lexus RX you might be victim of. If your battery is not recharging because there is actually a issue in your electrical set up, we will now see the different situations.

Battery charging problem on Lexus RX: 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 , obviously, if you manage to recharge your battery with a charger and your Lexus RX to start, the problem most certainly originates from your alternator which should not be able to produce any more current.

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

Battery charging issue on Lexus RX: 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 issue most probably originates from your alternator. It cannot result from your battery, which is new and consequently holds the charge. The second opportunity is that you have a ground somewhere in your electrical system.

How to resolve the issue of battery charging on Lexus RX?

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

  • Faulty 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 solution, depending 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 such a 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 depending on your engine.
  • Ground in the electrical circuit: If you cannot start your Lexus RX 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 such a case required.

How to recharge an empty battery of a Lexus RX

At last, to recharge the empty battery of a Lexus RX there are only few solutions, using a battery charger is the most efficient solution, you can locate some for 50 to 100 euros at vendors like Oscaro. Otherwise you can use cables that will only provide the energy needed to begin.

If perhaps you have any additional questions about the Lexus RX, do not hesitate to consult our Lexus RX category.