0
What else can I help you with?
How does the warning light goes out when the alternator starts to charge?
It depends on the vehicle. On some newer models, a computer reads the voltage from the battery and has direct control over the bulb. On older vehicles the bulb was direct wired in such way that when the alternator started to charge it sent voltage up the ground wire of the bulb. That causes voltage on both sides of the bulb and no current flow so the bulb did not light.
Why is the battery not charging on a 94 Mitsubishi Mighty Max Pickup?
is your "NO CHARGE" warning light coming on? if not this could simply be the problem, on some vehicles the charging circuit incorperates the "NO CHARGE" bulb and if its blown the vehicle wont charge. COuld be an alternator problem ( worn bushes etc) or faulty earth lead from alternator.
How do you change the alternator light bulb on a 280sl Mercedes?
To change the alternator light bulb on a 280SL Mercedes, first disconnect the car battery to ensure safety. Remove the instrument cluster by unscrewing it from the dashboard, then carefully pull it out. Locate the alternator warning light bulb socket, twist it to release, and replace the old bulb with a new one. Reassemble the cluster and reconnect the battery to complete the process.
How does the battery warning light go out after the engine has started?
The alternator has A specific connection that is for this job, When there is power to the alternator and the alt. is not making power it will light the bulb. When the alt. begines to make the desired amount of power it will automatically turn off the bulb. If the light is removed the alt. will not charge, because the light is also used by the alt. as verrification.
Why wont your 93 lumina van charging system work?
make sure the battery charged up, put a volt meter on the battery with the van running and see what the output voltage is, 13.5-14.5. if the voltage reading is low the problem is the alternator or regulator(which is inside the alternator) you will need to replace the alternator I HAD THIS SAME PROBLEM. BEFORE YOU SPEND ANY MONEY, IS YOUR ALTERNATOR LIGHT COMING ON [ A LIL BATT TO YOUR TOP LEFT ] IF YOU DON'T SEE IT YOU PROBLEM IS THERE. GM VEHICLE HAVE THIS PROBLEM, WHEN YOU TURN THE KEY [NO STARTING] THE ALTERNATOR LITE [THE LIL BATT TO YOUR LEFT] IS NOT ON THE ALTERNATOR WILL NOT CHARGE SO CHECK THAT LITE SOMETIME THE BULB IS BURN BUT MOST OF THE TIME BETWEEN THE BULB AND THE CONNECTION TO CHECK THE BULB OR CONNECTION, REMOVE TWO SCREW BETWEEN EACH END OF THE CLUSTER DASHBOARD THEN LIFT THE DASHCOVER P.S IF YOUR ALTERNATOR LITE COME ON WHEN YOU TURN THE KEY THEN YOUR ALTERNATOR IS BAD OR YOUR BATT CAN'T HOLD A CHARGE
Why does the energy from a battery transfer into the light bulb and causes it 2 light up?
charge travels from one battery contact to another one through the bulb
Which fuse runs the alternator?
Almost every alternator has its output directly connected to the battery or connected by a "fuse link" (which is a high-current fuse that looks like a section of the wire from the alternator to the battery). The alternator is isolated by internal diodes so as not to drain the battery when the engine is off. The alternator is turned on by power which comes in thru the "ALT" warning light. When the engine is started, the alternator has no output, so current flows thru the bulb and into the alternator field (F) winding. When the winding spins it generates voltage which then feeds back to the light and the internal regulator to power the alternator. When the alternator is self-powered, there is power on both sides of the "ALT" light, so it is NOT illuminated. When the alternator stops producing power, the bulb lights up. Note that the "fuse" is whatever fuse is connected to the "ALT" light. If the "ALT" light bulb or the fuse which feeds the start-up power to the light is burned out then the alternator will not power-up. Newer cars with digital dash instruments use a resistor in place of the "ALT" light bulb.
Why does battery not charge with new alternator?
When alternator went out, it could have taken out a fuse if the alternator shorted. The main battery cable to the alternator is not fused, but in your panel you should find an ALT fuse. most alternators have two to three small wires that are in a pigtail that plug into the alternator. these small wires are fused. if your car can't pass current through an open fuse. then there is nothing to essentially tell the alternator to turn on. another thing to check, is whether the battery light comes on. if you turn the key to the forward position, without trying to strart the engine, your prestart lights should all light up. this is a system precheck before the engine starts. the battery light should come on at this point. if the light doesn't come on that is an indication of a fuse being blown. in a lot of vehicles, from the seventies to the late nineties, the charge light, or battery light has to work in order for the alternator to work. if the bulb in the dash(which is behind the battery light) burns out, your alternator will not receive power to turn on and work. again, newer vehicles do not have a light circuit that it relies on for the alternator to function. keep in mind, your battery light should have come on and been on the entire time the old alternator was in the vehicle. if it wasn't on, then this is something to pursue further.
Why are there 14.5 volt automotive bulbs?
When the alternator on a vehicle is in the charging mode its output is close to 14.5 volts. If a bulb is rated at 12 volts, which is the voltage of a vehicle battery at rest, when the alternator comes on line at a higher voltage the life span of the bulb will be shortened.
Can you charge a 7.2V battery with a 12V power supply?
Yes, you can, but you need to put a resistance in series with the battery to limit the maximum current, so you don't overheat and cook the battery. I tend to fast charge my batteries using a 12v light bulb / utility light to lower the current. The bulb will glow when the battery is taking heavy current, and as the battery builds up charge, the current will drop and the bulb will get dimmer and dimmer. I try to limit the current to 1/10 of the capacity of the battery Im charging if I can. Otherwise, I monitor it with an ammeter and voltmeter and watch the lightbulb. $.02 Ed N3SDO
Why does the headlight bulb not even glow when it is connected to the torch battery?
Three possible reasons. 1) The bulb is faulty 2) The battery is "flat" i.e. it has no more charge in it or 3) There is a break in the circuit, maybe a poor connection somewhere. Corrosion on battery contacts is a common problem which could cause this symptom.
What is the conclusion for a battery powered light bulb?
what is a conclusion for a battery powered light bulb
