battery cable to starter gets hot
It is a new battery cable and lead. With a 12 volt battery when you try to start the bike the starter may draw 50 amps.
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The starter button wasnt working at that time so I was using a screwdriver to jump the solenoid which looks like its 1000 years old.
. The positive battery cable gets red hot and is turning black from the overheating and smoking. For the battery cables to overheat there has to be an issue with the cables themselves or the starter. Using a brush scrub any corrosion off the surface of the wire starting with the negative terminal.
Test light goes out The clock only uses power in little spurts you dont need to disconnect it to find your short. If the neg. If you have a hot battery cable start by turning off your engine and disconnecting the cable.
What do you call good battery voltage. Install new battery 5attach positive cable 6attach negative cable. Negative side of battery cables getting very hot Disconnect the red wire from the starter solinoid to the starter and crank key like you are going to start it.
High resistance causes the electrons to flow more slowly through the wires which generates heat. The biggest reason a battery terminate or connection would get hot is the connection is lose. Some were need to use a truble light dissconnect battery cable connect test lamp to battery terminal and connect to battery cable start pulling fuses till lamp goes out make a note as for wich circut is affected.
Typically this means that it will need a complete rebuild or replacement due to worn out bushings brushes or shorted commutator or windings. Cranking an engine for longer than 10-12 seconds causes critical electrical connections to become overheated and can cause them to melt. 1 the connection of the cable to the lug is poor or corroded 2 the cable is too small for the current flowing thru it.
Eventually the heat discolors the jacket. If it doesnt pull fuses until you find the one using power. That along with the high amount of power it is using to try and start will make it get very hot.
You have a drain on system not a direct short but a bad connection. A loose connection can ruin the starter motor. Why do my battery terminals get hot when I try to start my car.
This is an older thread you may not receive a response and. I would make certain you have a FULLY charged battery and all good clean connections and ground paths. The car will not start yet I had it the battery charged and it cranked right up.
Lead is not getting hot its either much bigger in cross-section or there is another return path to the battery such as an additional ground strap. The terminals on a lead acid battery can even melt from the heat. When the electrical connection to the starter motor from the battery is not tight it can cause arcing and burning.
The hot 12 volt cable from the battery to the solenoid makes a connection through the solenoid when you turn on the ignition key which spins the starter. Eventually the heat discolors the jacket. The battery posts get very hot along with the cables and the starter itself.
Loose connections usually prevent current flow. Subsequently question is what would cause a. Ive seen this happen with starter cables before.
A hot cable and battery can cause injury. The wire that goes from the sylinoid to the starter is so hot you can hardly touch it and I got burned where it connects to the starter because I accidentally bumped it. If your battery terminals are clean and still get hot along with the battery cable then it is a good indication that the problem is with your starter.
This means you have 12 ohms for the starter and 100 ohms of contact resistance. If its getting hot at the starter terminal its most likely a corroded bolt inside. You could take a mulitmeter and ohm out the cables.
The hot 12 volt cable from the battery to the solenoid makes a connection through the solenoid when you turn on the ignition key which spins the starter. Unplug the alternator and see if it goes out. Had an issue where my lawnmower battery terminals were getting extremely hot and as a result the battery would lose charge.
RedRooster I think you may have hit on the problem. If your contacts are dirty the resistance of the battery leads to the dirty battery can be in excess of 100 ohms. If the copper gets corroded under the insulating jacket copper oxide has a higher resistance than pure copper and the proportion of power dissipated inside the cables goes up.
The day I brought it home I tried to start it but wasnt getting spark. You will need to clean any corrosion and secure it tightly. Postive battery cable very hot.
The positive battery cable gets red hot and is turning black from the overheating and smoking. 2 Oct 22 2006. This is one of the most common causes of overheating in battery cables.
High current causes more electrons to flow through the wires which also generates heat. The reason the battery cable gets hot is that your starter is a DC motor. A cars Negative battery cables can get hot because of a loose connection damage corrosion wrong cable size and bad quality cable.
Any issue with any of the little wires would see them burn up into oblivion in a few seconds with the current the battery can deliver thru the fat cables. I have a 1990 Mercury Topaz that is refusing to start. Shorts cause much increased current flow hence the melting insulation.
Bad connections build resistance and resistance to current flow builds heat. Click to see full answer Similarly one may ask what causes a starter to overheat. The two main reasons why both battery cables would get hot are due to high resistance and high current.
Disconnect the positive cable from the battery terminal and use a test light to bridge the circuit. Joined Oct 20 2006. You could also have a starter that is drawing excessive amount of current and that too could cause the cables to get hot.
The easiest and quickest fix would. When you engage the motor at a lower voltage than it is designed to use it draws more current in an effort to do its job. Why Is My Negative Battery Cable Getting Hot.
The car will not start yet I had it the battery charged and it cranked right up. Your starter probably has a body ground instead of a wire grounding it. In order for your starter to crank you need a minimum of 10 amps at 12VDC which makes your resistance 12 ohms.
What Do I Do If My Battery Cable Is Hot. Mix baking soda and water in a bowl. Keep doing this and see if you can generate any heat.
I checked the battery because I had to jump start it with my truck and it read 126v. If not keep looking to the starter. If the cable or cable end is getting hot enough to damage the solenoid there are two likely issues.
Make sure the connection between the line and its terminal is secure.
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