Can You Jump A Car In The Rain

A dead battery will leave you stranded anywhere; there is no way around it. If this happens while it is raining, you may have concerns about electrocution if you use jump cables, but that is nothing to worry about. The electrical currents in your car are not enough to put you in any danger. 

A dead battery can occur anytime. It can be because your car battery is old, did not get properly charged because of corrosion at the terminals, or maybe you left your car accessories running without the engine working alongside. All these factors can drain and kill your battery, and they will not be cautious of the rain. 

Jump starting a car is an almost immediate way to give your battery the juice it needs to get turned on and go into charge mode. Jump starting provides the electric current the battery needs to power the engine, but it will not sustain it if you do not keep charging afterward. 

The alternator needs enough time to charge the dead battery, which means you will have to keep driving for at least thirty minutes after jump starting your car. We all know jump starting a car is a common method of supplying just enough electric current to get the battery running, but can it be done in the rain? 

Well, if there is a willing car and a pair of jumper cables, you can jump a car in the rain, and we will show you how to do it safely, so stay with us. 

Is it safe to jump a car in the rain? 

Essentially, jump starting a car requires another vehicle, which will supply electric current to the dead battery through a pair of jumper cables. It is not uncommon to wonder if it is safe to jump start a car in the rain, particularly because you will be dealing with electricity. 

The short answer is yes, it is safe to jump a car in the rain. Most people worry about getting electrocuted because jump starting a vehicle entails a significant amount of electricity. However, it is not so different from doing it in the absence of the rain, but you will have to take some precautions. 

The voltage in a car battery is 12v, which is far too low to create any spark that could hurt anyone. The cables, too, will not hurt you, but you will have to keep them as dry as possible. 

A car battery has been designed to keep water out with its plastic body. So, there is no need to worry about it, but the same cannot be said about the other parts of the engine. They will have to be kept dry too. 

car driving in the rain

Why is it safe to jump start a car in the rain?

It is no myth that water and electricity do not mix. Therefore, most people are skeptical about doing anything related to electricity when water is involved, like jump starting a car battery in the rain. 

However, aside from the relative safety of the jump cable, there is no need for concern about getting electrocuted. This is because the human body is a fairly good conductor of electricity – a significant amount will have to pass through to do any damage. 

We have to be exposed to a high number of milliamps before electrocution is possible, as explained by ohm’s law. A car battery contains 12v, which will not do much damage when brought in contact with a human’s 1,000-ohm resistance when wet. 

But again, you can ensure maximum safety by keeping your hands and the jump cables completely dry. Additionally, avoid touching the two battery terminals at the same time, as this would result in a mild shock even when it is not raining. 

How does jump starting a car work?

The process of jump starting a car involves connecting two automobiles together – one with a dead battery and the other without. The jumper cables are responsible for creating the connection, which will conduct the passage of electricity from the full car battery to the dead one. 

Afterward, you will start your car and keep it running. Then, remove the cables carefully. To ensure the battery gets a significant charge, the alternator needs to keep working for at least thirty minutes. 

The currents are passed between the vehicles through a protective casing that will not electrocute you even when it is wet. 

a car engine in cold weather

How to jump-start a car in the rain

Jump starting a car in the rain is no different from doing it under any other weather. 

Step 1: close the distance between the cars. 

The cables are not usually lengthy, so you will have to bring the two cars closer. 

Ensure that the jumper cables are still in good shape. If their casing is damaged at any point, rainwater can enter, causing a short circuit. 

Finally, turn off all the accessories in the car that has a dead battery. A car battery needs about 400 to 600 amps to start, while some multimedia systems consume 20 to 25 when it comes on. You do not want anything that will eat into the currents that your battery is receiving from the other vehicle. 

Step 2: Secure the clamps 

There is an order when you are connecting the clamps – the red cable always goes first. It is the positive cable, which you will connect to the positive terminal of the other vehicle. 

Then, the black cable comes next. Secure it to the negative terminal of the dead battery. The other part of the clamp should be attached to something metallic that is farthest from the battery. The car with a good battery should be turned on and left running to give the other vehicle ample time to charge. 

Step 3: Disconnect the cables 

After charging the battery for a while, you can disconnect the cables, but ensure it is done in order. The negative or black cable should be removed first and carefully placed somewhere without touching any metal. Do the same for the red or positive jumper cable. 

Is it safe to jump start a car in a thunderstorm?

It is not safe to jump start your car in a thunderstorm. Lightning can strike anytime and finding a way to the ground is how it does damage. As such, standing near a metallic object as large as your vehicle is not a great idea. 

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