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5

If you have a volt meter that you can connect to the battery you will be able to check the alternator. Before starting the engine, check the battery voltage, it will probably be a little over 12v. Now start the engine and turn on your headlights to draw some power. If the alternator is working, the battery voltage should now be between 13.8 and 14.4 ...


4

Yes its possible to start a car with Ultra capacitors.These caps dont appear to have a cycle life like the traditional lead acid battery does .The ability of these caps to provide starting current is very good .There are a couple of snags :The caps at present are more pricey than the best lead acid batteries.The caps are strung in series to get the nominal ...


4

Since the drain is very repeatable, connecting an ammeter in series with the battery and disconnecting each fuse in turn is a good idea as @jphil1618 suggested. You could find that the problem is associated with multiple fuses, for example it could be the fuel pump that is running (I know you would hear the pump) and while pulling the fuel pump fuse will ...


4

To answer the title question, no. I've worked in several automotive retail outlets and have never seen an automotive battery not precharged. They may exist, but it would be an odd sight to see. Automotive batteries are very frequently purchased and installed in the same transaction. The batteries in which you need to put in the electrolyte, you also need to ...



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