Battery jump reverse connectors

I went out to my car today and tried to start it and realized I had a dead battery. I got a jump from a friend, but he made the mistake of putting the connectors on in the reverse direction, so now my radio won’t work. I thought if I swapped out my fuses it would help but they blew. It doesn’t look like any of my wires burned under my hood and my cigarette lighter is working OK. Do you know how I can get my radio to work again? I hope it isn't fried.
Experienced mechanics share their insights in answering this question :
Hey there, thanks for writing in about your 2013 Kia Fote Koup. Fuses are in place to protect wiring and components from failure. By connecting the cables in reverse direction you created a surge in amperage, and the flow of electrical current in the opposite direction could have harmed wiring to the radio as well as the battery. Consider yourself lucky that nothing else has been damaged. When a fuse opens, the circuit, or in this case, the radio is shorted. This may require replacement of the radio. If you would like to have this looked at, a certified technician from YourMechanic diagnose your electrical problem and advise you on repair.

How to Identify and Fix Common car Problems ?

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Open the positive terminal cap inside the engine room fuse box and the negative terminal cap close to the vehicle body. Connect one end of a jumper cable (red, positive clamp) to the positive end of the discharged battery. Connect the other end (red, positive clamp) to the positive end of the booster battery.
The Kia Roadside Assistance Kit includes a Kia small duffle bag that contains some of the following items: Jumper Cables.
Jumper wires are electrical wires with connector pins at each end. They are used to connect two points in a circuit without soldering. You can use jumper wires to modify a circuit or diagnose problems in a circuit.
Attach one red jumper cable clamp to the positive terminal on the dead battery. Attach the other end of the same cable, the second red jumper cable clamp, to the positive terminal on the working (live) car battery. Attach one black jumper cable clamp to the negative terminal of the working (live) car`s battery.
Connect one red clamp of the jumper cable to your dead battery`s positive terminal. Connect the other red clamp to the booster battery`s positive terminal. Connect one black clamp to the booster battery`s negative terminal. Connect the other black clamp to an unpainted metal surface of your dead car.
One end of the red jump lead should be connected to the flat battery`s positive terminal. The lead must not touch any vehicle metal. Attach the red lead`s other end to the boosting battery`s positive terminal. Take the black lead and connect one end to the boosting battery`s negative terminal.
First the clamp of the red cable is connected to the positive terminal of the assisting vehicle. The other end of the red cable is connected to the positive terminal of the broken down vehicle. Then the black clamp is connected to the negative terminal of the assisting battery.
There are different types of jumper wires. Some have the same type of electrical connecter at both ends, while others have different connectors. Some common connectors are: Solid tips – are used to connect on/with a breadboard or female header connector.
The jack, jack handle, wheel lug nut wrench are stored in the luggage compartment. Pull up the luggage box cover to reach this equipment.
Connect the red clamp to the positive post on the dead battery. Connect the other red clamp to the positive post on the working battery. Connect the black clamp to the negative post on the working battery. Connect the last black clamp to an unpainted metal surface of your car.
A jump wire (also known as jumper, jumper wire, jumper cable, DuPont wire, or DuPont cable – named for one manufacturer of them) is an electrical wire, or group of them in a cable, with a connector or pin at each end (or sometimes without them – simply “tinned”), which is normally used to interconnect the components of …
Solid copper is one of the best conductors of electricity, followed closely by aluminum. Aluminum cables are generally less expensive than a copper set, but the gauge may not be low enough to handle larger vehicles. Also, be aware that copper plated cables won`t work as well as a solid copper set.
Starting the gasoline (petrol) engine

Carry the smart key or leave it inside the vehicle. Make sure the parking brake is firmly applied. Manual Transmission – Depress the clutch pedal fully and shift the transmission into Neutral. Keep the clutch pedal and brake pedal depressed while starting the engine.

Voltage problem

Trucks usually have a 24 V supply using two 12 V automotive batteries in series: it is therefore possible to jump-start a vehicle with a 12 V electrical system using only one of the two batteries.

Most jump starters are powered with a sealed lead acid battery, and they come in various sizes so you can start engines of different sizes. Some come with additional features, like a small light, a USB port to charge portable devices and an air compressor to inflate flat tires.
Make sure both metal clamps are firmly in contact with the terminal. Attach the other end of the positive (red) jumper cable to the positive (red) terminal of the assisting battery. Attach the negative (black) jumper cable to the negative (black) terminal of the assisting battery.
One end of the red jump lead should be connected to the flat battery`s positive terminal. The lead must not touch any vehicle metal. Attach the red lead`s other end to the boosting battery`s positive terminal. Take the black lead and connect one end to the boosting battery`s negative terminal.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Battery light stays on and overnight battery drain. 2006 Land Rover LR3
ANSWER : Hi there – yes, something is going on here that’s draining your battery. Perhaps the pressure of the engine wash dislodged wiring which has shorted, or there was a chemical reaction to the cleaning solution that caused electrical damage in the alternator or voltage regulator. These componnents can be checked off of the vehicle. Vehicle wiring can be diagnosed by connecting an ammeter to the positive (red) battery cable, observe the current drain (likely less than 1 amp), then, one at a time, remove each fuse, check to see if the current drain has dropped to near 0, then reinsert the fuse. This process should identify the faulty circuit in most cases. The specific components on that circuit can then be checked for current drain problems. A professional mechanic, like YourMechanic, can come to your location, and perform this procedure for you, and replace/repair the failing component.

Battery light stays on and overnight battery drain. 2006 Land Rover LR3
ANSWER : Hello – this problem can be diagnosed by connecting an ammeter to the positive (red) battery cable, observe the current drain (likely less than 1 amp), then, one at a time, remove each fuse, check to see if the current drain has dropped to near 0, then reinsert the fuse. This process should identify the faulty circuit in most cases. The specific components on that circuit can then be checked for current drain problems. A professional mechanic, like YourMechanic, can come to your location, and perform this procedure for you, and identify, replace or repair the failing component.

My battery light is on.
ANSWER : The problem is not the battery, but the charging system is not keeping the battery recharged. The alternator is the most common cause of this, though failing battery cables can also be a cause. I would recommend having the battery cables and alternator tested and checked by a mechanic, like one from YourMechanic, who will come to you and diagnose the problem for you. Do not try and drive it or it will leave you stranded from the battery going dead again. The cables to the battery from the alternator may be bad or the alternator is not charging. Only the testing and diagnosis will reveal the problem.

My car will not start Intermittently. I purchased a new battery 2 weeks ago and yesterday the car wouldn’t start. Got a jump and
ANSWER : The issue you are having is probably due to an intermittent fault in the starter motor itself or a deficiency in the starter electrical circuit, for example a large voltage drop due to a poor ground or a high resistance connection. These issues can be readily diagnosed and resolved on a mobile basis if you request a hard starting diagnostic. If you request that diagnostic, the responding certified mechanic will get this resolved for you promptly. Based on Toyota’s Factory Service Manual, the battery should not be disconnected if the vehicle engine is running. The battery acts as a large resistive voltage sink and consequently taking the battery out of the circuit, while the alternator is still running, can create a voltage spike on the car’s electrical system which is not good for voltage sensitive components such as the engine computer. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

Battery jump reverse connectors
ANSWER : Hey there, thanks for writing in about your 2013 Kia Fote Koup. Fuses are in place to protect wiring and components from failure. By connecting the cables in reverse direction you created a surge in amperage, and the flow of electrical current in the opposite direction could have harmed wiring to the radio as well as the battery. Consider yourself lucky that nothing else has been damaged. When a fuse opens, the circuit, or in this case, the radio is shorted. This may require replacement of the radio. If you would like to have this looked at, a certified technician from YourMechanic diagnose your electrical problem and advise you on repair.

I have Chrysler 300c. Battery light came on, changed battery and alternator but power still getting drained and battery light still comes on.
ANSWER : Hi, thanks for writing in. This may be a sign of a failing starter relay. The starter relay is a small unit near the starter that directs power to the starter from the battery. When this fails, it may cause a clicking sound and will not allow the starter to engage the flywheel when you turn the key. I would suggest having a professional from YourMechanic come to your home to diagnose your starting issue to determine the solution to get you back on the road.

Car jumps in Reverse & less in Drive
ANSWER : Hello. I would start by having the transmission fluid drained and inspected. If the fluid smells burnt or has any metal in it, then the transmission is failing. If the fluid looks good, then servicing it may help.

This is sometimes also caused by worn out engine and transmission mounts so those need to be checked, too.

If those are fine, then the internal pressure of the transmission needs to be checked. I would also check the battery and the connections at the battery as low voltage will cause this and the other electrical issues that you are having. If you want to have this looked at, consider YourMechanic, as a certified mechanic can come to your home or office to diagnose the jumping transmission and advise you on any repairs needed.

Battery dies after jump start after turning key off. Battery? Alternator? No dimming lights no dashboard dimming. Battery maybe?
ANSWER : Hello. If the vehicle is running fine as you drive around then the alternator should be fine. This is usually caused by a bad battery. It sounds like it is accepting a jump but it is not accepting charge from the alternator. The battery should be load tested and then replaced. If you need some help with getting this done, consider YourMechanic, as one of our mobile technicians can come to your home and service your battery.