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12V

While modern car batteries have been standardized at 12V many cars built before 1960 used the older standard 6V car battery. While these are no longer available from auto parts stores, there are specialty auto parts suppliers still selling them to meet the needs of car collectors and other enthusiasts of old cars.

One example of a car using the 6V battery was the Crosley which was manufactured from 1939 to 1952. The pre-war models were very popular during wartime gas rationing because the light weight of the car (less than 1000 pounds) permitted it to get 50MPG.

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βˆ™ 9y ago
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βˆ™ 13y ago

I assume you are asking about automobile batteries. The only 100% sure way is to measure the voltage at the battery with a volt meter. Purchase a cheap multimeter and test it. Look on the battery label and see if the voltage is listed.

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βˆ™ 5y ago

Set the charger on 2 amps and 12 volts. Hopefully you have an auto off charger that will not overcharge the battery. If not then charge the battery for 6 hours and then with a digital volt meter check the charge of the battery. You should read 12.6 volts if the battery is fully charged. 12.4 volts and it is 75% charged. 12.2 volts and it is 50% charged. 12 volts and it is 25% charged. Charge additional hours to reach a full charge.

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βˆ™ 13y ago

Depends if its a 6V or 12V battery.

If its a 12V battery, us the charger in the 12V setting.

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βˆ™ 5y ago

The battery will be marked with how it is to be charged, follow these instructions. If you do it wrong the battery could explode.

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βˆ™ 12y ago

Most modern motorcycles are 12 volt so you will need a 12 volt battery charger. If you have an old cycle that is 6 volt then use a 6 volt charger. Match the charger to the battery.

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Q: How do you tell if a battery is 6 volt or 12 volt?
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Can you charge a 6 volt battery with a 12 volt battery charger on slow 2amp charge?

No.


What 12 volt battery is best to replace 6 volt battery bank and retain ample reserve capacity?

If your load runs on 6 volts, you cannot replace it with a 12 volt battery. You will be exceeding the voltage rating of your load and will start a fire.If you want more amps (capacity) then you can wire more 6 volt batteries in parallel with the first.


Can you use a 12 volt battery on a 6 volt system?

Sure you can. But consider what could happen if you did. If precision of time or speed was built into this 6-volt system, a 12-volt battery will make it work faster until something shorts or burns out. If you need more lasting power for the 6 volt system, you should consider putting two 6-volt batteries in parallel to power your 6-volt system.


Can you use a 3.5 amp charger to charge a 12 volt battery?

You can charge a 12 volt battery with a 6 AMP charger. The amount of amps put out by the charger is actually the rate which the power flows out from the charger, not the amount of volts it will charge. Volts and Amps are two different things. You can't charge up a 12 volt battery all the way, using a 6 volt charger. You can charge a 12 volt battery with a 12 volt charger rated at '6 amps'. It will charge the battery faster than a 2 amp charger will, but it will take longer than using a 12 amp charger. You probably don't want to use anything higher than a 12-16 amp charger for charging a 12 volt battery. Some chargers are equipped with a 60amp boost charge that is used for starting the vehicle, without having much of a charge in the battery. You DO NOT want to attempt charging a battery with it set to a 60amp boost charge. That is for starting vehicles only and could damage your battery. Keep in mind that the lower the amps are, that you use to charge the battery (1-2amps), will result in the charge lasting longer without recharging it, than if it was charged up at a higher setting (12-16amps).


Can you use two 6 amp chargers on one battery at the same time?

No, you would be applying 24 volts to the 12 volt battery.