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It takes eighth batteries. each battery, being AA, A , C,or D have 1.5v per cell. if you put them all in series; neg. - pos., neg - pos., and so on it will take eight D batteries to make 12 volts.

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How many torch batteries needed for earthquake?

Enough to last two or three days in all of your flashlights. If you have a 12V adapter, you can sometimes recharge rechargeable batteries from a car or truck outlet.


Are 12v batteries actually 13.8v?

Yes, a fully charged 12V battery can measure around 13.8V. This is because the voltage can vary based on factors such as the state of charge and temperature of the battery.


Can I power a light strip with AAs 12V?

Yes, you can power a 12V light strip using AA batteries, but you'll need to connect multiple batteries in series to achieve the required voltage. Specifically, you'll need eight AA batteries, as each standard AA battery provides about 1.5V. However, keep in mind that this setup may not provide a long-lasting power source, as AA batteries can drain quickly depending on the light strip's current draw. Additionally, consider using a battery holder and a method to connect the batteries securely for safety and efficiency.


How can the 250watt PC power supply unit be replaced with a 12v 4ah batteries and how many batteries you need and how would it be connected to make the PC work on batteries for 2h?

First find the current which is 250/12 = 21A rounded off. So you would need 6 of the batteries in parallel to get a bit more than 1 hr and probably 11 batteries in parallel would provide around 2 hours of operation. This is not precise since the power supply wouldn't always consuming 250 watts of power.


Why do the wires get hot when connecting two 12v batteries to make it 24v?

When connecting two 12V batteries in series to create a 24V system, the wires can get hot due to resistance in the wires and the current flowing through them. If the wires are undersized for the load or if there is a poor connection, the increased resistance leads to power loss in the form of heat, as described by Joule's law (heat generated is proportional to the current squared times the resistance). Additionally, if the batteries are not balanced or if there is a short circuit, excessive current can further exacerbate the heating issue. Proper wire gauge and secure connections can help mitigate this problem.

Related Questions

Explain why a 24v system that runs off of 4 batteries which includes a 12v feed- that's powered by two of the batteries are getting no charge from the alternator.. the other two are charged well.?

With the batteries in series, the alternator provides the same current, and therefore the same charge to all the batteries. The alternator can take no account of any current being drawn from the 12V take off point. Part of the charge current is being fed to the 12V load and not to the batteries. Therefore, the 12-24V batteries are being fully charged while the 0-12V batteries are being partially charged. Over a period of time, the difference between the charge levels will become more obvious.


What batteries do TF Gear Mag Runner bite alarms take?

Hi, They take the little 12v batteries, same as for hand held digital camera's.


How do you wire four 12 volt batteries to get 36 volts and 48amps?

Four 12V batteries may not be connected end to end to obtain 36 Volts. But four 12V batteries can be connected end to end to provide 48V and push 36 amps. The actual answer to your question suggests that you drop one 12V battery and use three, not four 12V batteries end to end to obtain 36V.


How many hours do the 12V 200AH batteries last to run 1000W lamp?

Approx 5 hours


How many 12v 12ah batteries are required to run 320watts motor?

it depends how many hours do you want it to run, but basically 3 batteries should be enough for a little more then 1 hour


How many 12v batteries could be use to power 500kva ups?

Well unless you mistyped something 500kva is 500,000 watts. That would be 41,666 12 volt batteries!


You want to take 25ams output you are having 16 Nos of 12V 8Ah batteries do you have to connect batteries in series of parallel connection?

Parallel or Series Connections for BatteriesTo increase current [measured in Amperes], you connect batteries in parallel. To increase voltage, you connect batteries in series.


What is the difference between 12V automotive and 12V marine batteries?

without knowing exactly the types of batteries you are talking about but generally marine batteries are a higher quality battery and have higher amp hour ratings which basically means they can turn the stater for longer


How many torch batteries needed for earthquake?

Enough to last two or three days in all of your flashlights. If you have a 12V adapter, you can sometimes recharge rechargeable batteries from a car or truck outlet.


What is the voltage that is carried out by automobile batteries?

Virtually all automotive batteries nowadays are nominal " 12V " batteries, but will measure up to 13.6V when fully charged.


What is 12V and can be used to create a fire?

12V is probably short for 12 volts, the voltage used by regular car batteries. And since 12V can strike a spark, it can be used to start a fire.


Can you use different amps on a 24V truck with 12V batteries in series?

y not?