# How can I hook two 12 volt batteries together to produce 24 volt output. I have replaced the two older batteries but have not been able to get the two new batteries to produce the necessary 24volts

Put in new 12 volt batteries but I hooked them up wrong and am not able to get the sequence correct.

Posted by Anonymous on

• Level 2:

An expert who has achieved level 2 by getting 100 points

MVP:

An expert that gotĀ 5 achievements.

Governor:

An expert whose answer gotĀ voted for 20 times.

Hot-Shot:

An expert who has answered 20 questions.

• Expert

Hooking up 2 batteries (IN SERIES) will give you 24 volts. First make sure the 2 batteries are exactly the same. Do not use mismatched batteries. Hook the POSITIVE of first battery to the NEGATIVE of the second battery. Then hook your LEADS ( hot and ground) to the 2 remaining posts. That will give you 24 volts. When charging the batteries with a charger, hook the charger up to the LEAD POSTS.

Posted on May 27, 2015

Hi,
A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
Good luck!

Posted on Jan 02, 2017

use a volt meter and check for voltage at the plug, if none..check in the back near your batterys and locate the circuit breaker and reset it ...basic system = battery-breaker-wires....hope this helps ....GL

Posted on Jul 06, 2009

×

my-video-file.mp4

×

## Related Questions:

### How do I wire two tandem batteries for an electric scooter

Tandem batteries... is a fairly loose term to be dealing with on batteries... SIMPLY BECAUSE THEY ARE EXPLOSIVE.

TANDEM voltage
(assuming you were trying to achieve 24 volts with 2
12 volt batteries would NORMALLY be called serial...

Where as to increase AMPACITY ... called "parallel."

Rather than risk severe burn, blindness (end of life
experimenting with EXPLOSIVES...
You need to go back to your source for better information ...
or
Provide better information here... Pretty please

Jan 12, 2017 | Electric Health & Beauty

### How do you wire two 12 volt marine battery to make them 24 volts

Be careful or sparks will fly! Work out how you want your batteries to sit together while remembering that you will be connecting battery ONE's positive post to Battery TWO's negative post. Measure the short length of heavy connector cable needed and note the battery post type and size buy cable and make clean secure connection. The output from the remaining two posts will be 24 volts. N.B. always use matching batteries of same age.

May 12, 2014 | Pride Health & Beauty

### Convert 2 12 volt batteries to 24 volt

You hook them up in series.The plus from one battery goes to the minus of the other battery. This will produce 24 volts.

May 08, 2014 | Pride Health & Beauty

### My 12/24 volt trolling motor only runs on 12 volts

Did you connect 2 batteries to try the 24 volt version? You have to link them together like a flashlight, positive to neg and then out the other side, for 24 volts, like a golf car.

Feb 23, 2010 | MotorGuide STANDARD MOTOR REPLACEMENT...

### Wiring diagram for 12/24 volt system

here is a wire diagram. follow the pictures. you can do fuses but i like inline breakers. you can get them at your local outboard dealer.

Nov 05, 2009 | Boating

### The battery takes a charge, but will not power scooter

This scooter require two batteries, not one. It is usually a good idea to replace both batteries at the same time, even though one is obviously bad, and the other "seems" okay. These 12 volt DC batteries (VDC) work in tandem to produce the 24 volts that the scooter operates on. In a perfect world, they would both live a long and happy life, but reality is that some die young, others old. Since they are joined together, the one that's going out saps the life out of the other one, so take a bullet and replace both batteries. Make sure you completely charge the scooter when you get the new ones in. Verify that your charger is working properly. To properly charge the 24 VDC system, the chargers have to have an output of about 26-28VDC. The output must be higher than the rated voltage of the two batteries put together to charge. While you have the shell off the scooter, you can see if the charger is working by measuring across the terminal on each battery with the charger off. Note the meter reading. It should be 12-13 VDC. Put it on the charger and retake the reading, and each battery should show an increase in the voltage due to the boost from the charger. After three hours, each battery should show about a 13.5 VDC reading which should hold above 12 for a good 8-10 miles. Always charge your batteries overnight, and if not in use, disconnect them completely with a full charge on the batteries.

Jul 11, 2009 | Golden Technologies Avenger 4 Wheel...

### 12 volt alternator putting 24 to 48 vols

Try another multi-meter or change the settings... 12V alternators cannot produce 48V.

Jul 02, 2009 | 1993 GMC Sierra K1500

### No power out

When you say no power.I assume you have no current flow,because you state there is a voltage present.I can think of at least two possible routes to figure out what is going on.First you could try another load with your solar panel array,and see if it is producing its rated current at the voltage specified.Say the panel is rated at 24 watts for example.24 watts divided by 24 volts equals 1 amp.If you hook up a 24 ohm load to this array it should produce your 1 amp current flow,or in other words it should be able to maintain the 24 volts across the load at 1 amp.Thus your 24 watt output.Also check that your controller doesn't need more power input than the array can provide.Which is kind of leading to the other route you can take.You can also try placing a 24 volt dc source of sufficient output power across your pump controller and see if it will operate.Two car batteries in series would work.

Nov 07, 2008 | Sharp Polycrystalline Solar Panels...

## Open Questions:

#### Related Topics:

209 people viewed this question

Level 3 Expert

Level 3 Expert