Difference between 12v and 24v in Battery System?

the difference between 12v and 24v in battery system


We all use batteries in typical everyday life. Whether or not it’s in our remote, watch, car, or RV, batteries are one part of our lives. Most of the time, its not necessary to think about the voltage of A battery. However, once operating with DC power systems for RVs boats or off-grid applications, a serious decision must be created: what is the difference between 12v and 24v in battery system? 


To understand additional regarding batteries, we should check in advance what volts or voltage is. Voltage is that the quantity of electrical pressure it takes to push an electrical current. Take a look at what volts are to get a stronger understanding of this idea.

Most automotive and recreational vehicle batteries are 12V.

What Does "12V" Mean?

To find out what is the difference between 12v and 24v in battery system, we ought to understand the basic definition for each first. 12V tells us that the battery supplies 12 volts under a nominal load. The same principle holds for a 24V battery bank in that it provides 24 volts.12V LiFePo4 batteries are utilized in most vehicles as a result of the electrical parts like the starter, lighting, and ignition systems are designed to control on 12 volts.

The 12-volt rating of a battery is that the nominal voltage and it should be a slightly higher or lower reckoning on the state of charge and loads. We typically use 24V battery systems in larger trucks and buses because of the vehicles higher power needs and long cable runs. you’ll also look at 24V utilized in larger boats and a few RVs with elaborate solar systems. 

What Does “12V” Mean?

What is a 24V Battery?

One way to form a 24V system is to use a 24V battery. 24V LiFePo4 batteries are less common than their 12V counterpart and are tougher to come back by. 24V batteries are comparatively expensive.

However, they are doing take up no space than running more batteries in series. So, if the space could be a concern, a 24V battery is also a stronger selection for you.

12V System advantages

Most vehicles use 12V systems as parts used in vehicles are designed to control on 12V. When it involves RVs, most appliances like recreational vehicle refrigerators and the lighting also work on 12V. 12V systems only need a battery and work well for low-power applications and short wire runs.

12 volt systems are nice for or her simplicity which most recreational vehicle appliances work with them. Smaller solar systems are also easy to attach to them.

24V System advantages

24V systems are helpful as a result of you’ll use smaller diameter wire and cut back electrical phenomenon by twice. If using smaller diameter wires will cut back wiring prices and reduce the space needed to run wiring. This is often particularly necessary wherever long wire runs are needed.

But wait, however, are you able to run a smaller wire with more voltage?

You can run a wire 2x smaller than a constant 12V circuit. This is often due to the higher voltage needing less current to provide a similar power. Since we may be running less current or amps, we can use a smaller wire. This is often a similar reason power is transmitted on power lines at terribly high voltages. The wires are often many, smaller, and carry lots of additional power!

When building out larger portable solar systems victimization higher voltages like 24 volts or 48 volts is extremely helpful. This is often Geo Astro RVs set up with thousands of watts of solar.

In addition to smaller wires, 24 volt systems operate additional with efficiency in motors and inverters. Often, a similar solar charge controller operational on 24V vs 12V can handle doubly the solar input. 

When Shall We Use A 12V or 24V System?

Now that we’ve learned a bit regarding 12V vs 24V systems, we want to learn more after we ought to use one over the opposite.

When building a DC (direct current) battery system, its crucial to know your power necessities to run the appliances you would like. The energy that’s consumed by a tool is measured in watts. Once you recognize your electrical power demand, you’ll confirm what system is needed base on the difference between 12 and 24 volt.

If your necessities are below 3000W, you’ll typically get by with a 12V system.

Many suggest 24V systems once your power desires are higher than 3000W or generating 3000W of solar or more. If your power consumption is even higher, higher than 6000W, you’ll take pleasure in an excellent larger DC system and think about stepping up to 48V. 

24V DC advantages For solar

We found many DC MPPT solar charge controllers have higher voltage capabilities to handle higher panel volts. They, however, have a tough current limit.

When using a 55 amp rated charge controller on a 12V battery bank, you’ll use the controller with 700 watts of solar. If you use that very same charge controller on a 24V battery system, it will connect with 1400 watts of solar panels. This suggests that the quantity of star charge controllers is required. They’re going to also operate more with efficiency at 24 volts. 


It isnt perpetually a clear-cut call. There are several variables to think about once decisive that one is that the most suitable option.

Now that we know well difference between 12v and 24v, they’re not as daunting as we originally think them to be. Whether or not you finish up with a 12V or 24V system, you currently know the variations. You’ll assess your needs and create an informed call to Maxworld power. Welcome to your call any times! 

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