Could be. Vibration and heat are a batteries worst enemy. Remove the battery and take it to any place that sells batteries. Have it checked. If it is bad, replace the battery, and install a new battery hold down clamp. If it is good, start the car and drive it to any auto parts store and have them check the charging system.
Start by disconnecting the negative battery cable, then loosen the hinge and bracket bolts on the alternator. There should only be one of each. Rotate the alternator around the bracket to release tension on the belt and electrical wires far enough that they can be disconnected. Remove the bracket bolt then the hinge bolt and the alternator should come right out. Installation is the reverse of removal. To tighten the belt back up, be sure the bracket bolt is loose then use a prybar between the alternator body and the engine block to pry the alternator along bracket. When the desired tension is reached, tighten the bracket bolt back down. Boom Done
Have you drove the car around? Sometimes it takes the alt. awhile to "kick" in. Say around the block twice?
Find a volt meter, check the battery voltage with the engine stopped, it should be a around 12 V. Now start the engine and the voltage should be around 13.5 V. If the alternator isn't putting out about 13.5 (+/- .5 V) the replacment alternator could be bad or you might have a bad connection somewhere.
We replaced the alternator on 2 different vehicles. It was around $175 for each.
Alternator is sending to much volts to battery. Suppose to turn itself off when battery gets to around 13 volts. May need new alternator.
A bottom bracket typically lasts around 5,000 to 10,000 miles before needing to be replaced, depending on usage and maintenance.
Since you replaced the battery and alternator, you must have had a problem before. Did you run a voltmeter on the battery while the engine is running? Should have around 14 volts. If you are getting around 14 volts, you can assume that the lite might be faulty. If you are getting say, 12 to 13 volts, then the alternator might be faulty, yes even sometimes rebuilt ones. Check all the wires to make sure there is good contact, also if you still have the problem, then you might have a broken wire ( somewhere ). Good luck
Alternator is sending to much volts to battery. Suppose to turn itself off when battery gets to around 13 volts. May need new alternator.
Need more info... How old is it? Do you drive short distances? Does it sit around not driven a lot? Check for a short, bad alternator, or fried battery. If you take the car to an alternator shop, they can usually tell you for free if it's the battery or the alternator.
bad alternatornot always.if its a bad battery and can't hold a charge the same thing will happen.I had a 99 s-10 that would occasionally die at the pump or even while driving, I had a new defective battery, replaced under warranty, no more problem.I would have the alternator checked out before replacing it if that is the problem. I had my replaced and it wasn't cheap...$630 to be exact. The new alternators run around $200 and most mechanics will change the serpentine belt when they replace the alternator so this MAY be an added expense.If the alt is working properly, you can remove one of the battery cables while the engine is running and it will continue to idle. If it dies then the alt needs to be replaced.
Check your connection. Make sure they are clean and tight. Especially your ground. Check it at the battery, alternator, motor, and frame. When you replaced that alternator, there was the heavy wire that connects to the bottom of the alternator via a nut. This connection has a rubber boot to protect it from shorting out because there's very little room around it when it's mounted in place. Check that this connection/wire isn't shorting out in that area.
When the alternator goes bad or goes out completely, the car's battery will be drained. I suggest you pull the alternator and have it tested. If the alternator is bad, you will most likely need a new battery as well. The cost is around $200.00.