If a jump start will not start it then it is not the battery. You either have a short in the battery cable connection to the battery or the engine/starter or you have a bad starter. Test for a short in battery, battery Cables or connection. Trace where the positive battery cable connects to usually an electrical box on the inside of the engine compartment and put the positive jumper cable there while putting the negative jumper cable on a metal part of the engine (you are by-passing the battery and the battery cables completely). If it does not start now then you have a bad starter.
when starting my car, cannot
Where are the jump start terminals under the hood on a 2003 e320
If there is corrosion on the terminals then you will have a bad connection that will not transfer power from the battery to the starter. It is just like disconnecting the cable. Electrical current cannot flow properly through the corrosion,
The battery cannot be removed quickly! Inductance of the wiring stores energy and keeps the current flowing and decaying smoothly. There will be an opposite polarity, higher voltage pulse on the battery terminals, limited by the circuit capacitance only.
The battery cannot be removed quickly! Inductance of the wiring stores energy and keeps the current flowing and decaying smoothly. There will be an opposite polarity, higher voltage pulse on the battery terminals, limited by the circuit capacitance only.
Battery Terminal Corrosion is Often VisibleFirst, the plastic case of a battery cannot corrode.When corrosion occurs, it is on the metallic lead terminals and the connector clamps on the battery cables.What you can see depends on the extent of the corrosion.Mild corrosion may be nothing more than a dark [often black] film on the terminals and connector clamps.If the corrosion has been allowed to go on for a long time then one may see evidence of the corrosion in the form of a "fluffy" buildup of powder on the terminals and connector clamps. This powdery buildup is usually a whitish, green to blue-green tint.The fluffy material is an oxide or salt compound resulting from the combination of the metal in the terminals and connector clamps with the Sulphuric Acid in the liquid battery electrolyte.
The first thing you do is turn off the car, and set the parking brake. Now detach the black battery terminal from the battery. Next, repeat the same procedure with the red terminal. Using a rachet and socket, remove the battery hold down clamp. Grab the old battery from the bottom with both hands and lift it out of its tray. Using a wire brush, thoroughly clean the corrosion from the battery terminals with a baking soda and water mixture. Place the new battery in the tray and secure it with the hold down clamp. For best results, spray the battery terminals with a anti corrosion solutions. Now attach the red terminal first, followed by the black terminal, making sure the terminals are tight enough that they cannot move.
More information is needed for better diagnosis. I suggest looking at the brake switch if an auto or the clutch switch if a manual
I was told if the battery is "insufficient" it makes the starter crank slower, the fuel pump pump slower and hence ruins the car. I think that's a bunch of hooey b/c once started, the car runs off the alternator. Nevertheless, my freind believed the mechanic who charged him $1500. for a new battery, starter, fuel pump and other crazy things he mentioned but I just cannot remember. My advice is, hook the terminals to the correct wire (positive/negative) and fire it up!
A battery cannot be 'reset'.
I think you are asking why is it necessary for an automobile battery to have low internal resistance. That is because the internal resistance of a battery limits the amount of current it will produce. Imagine connecting a wire from the plus side of the batter to the minus side. Then, the amount of current the battery produces is the voltage of the battery divided by its internal resistance. So, if you take a flashlight battery and connect a wire between the two terminals, it might get a little warm. If you take a car battery cannot a wire between the two terminals, the wire will probably melt! (Don't try this!) If you take a lithium ion battery from your computer and short the two terminals, the battery will catch on fire. (Computer companies build extra resistance into the batteries to help to prevent that. So, why do cars need low internal resistance batteries? They need lots of current to start those large gasoline engines turning. You car battery does a tremendous amount of work to start your engine (and remember, energy and work are the same in physics).
A car with a dead battery cannot be started on its own. If you use another car to jump start the car the car may run. My Lincoln Town Car will not run for long unless on the highway. There is too much of a load on the system. Even with the AC, fan, radio etc off it will stall in traffic with a bad battery. If the battery was drained due to leaving the lights on or does not charge due to corroded cables terminals, the alternator will charge the battery once the terminals are cleaned. You may need to drive for several miles on the highway to fully charge the battery. You won't be able to start with dead battery. But once the engine is started by jumping off with jumper or battery cables, the alternator will generate adequate charge to keep the engine running. Be careful if you are unfamiliar with jump starting an engine.... If you try it, please ensure that the cables are properly hooked up (hook one cable to the positive battery(+) post of your car and the other end of the same cable to the +battery post of the car jumping you off. Then, hook the other cable to negative(-) battery post of your car and the other end of the same cable to the negative battery post of the car jumping you off). Cables are generally color coded (RED for +positive, Green or black for negative-). Now, once the engine is started, your car should run okay, assuming your alternator is functioning properly. Should the car engine stop running for any reason, it will require another boost to re-start. For example, once jump started, you could drive to auto parts store and have them install a new battery for you. It's just that you must understand that someone must help you boost your car again should your car stall or the engine stop runnning, until you replace the battery. Incidentally, if your battery is dead due to leaving the lights on or something draining the battery accidentally, it should recharge okay, once you jumpstart your engine. The alternator should recharge the battery, unless either the alternator or the battery is failing. Be sure to leave running for a minimum of 20 or 30 minutes to allow time for the battery to re-charge. It may take less time, depending upon the battery / alternator condition. But the longer it runs, the more charge the battery will receive, until fully charged. Hope this helps...