What is the Difference Between a Power Supply And a Battery Charger?

Published on: October 16, 2022
Written by Jonas Frank / Fact-checked by Nova Scarlett

There are a few key differences between power supplies and battery chargers. A power supply is designed to provide a constant flow of electricity, whereas a battery charger is designed to charge a battery and then maintain its charge. Power supplies can be used with batteries, but they will not charge them; for that, you need a battery charger.

what is the difference between a power supply and a battery charger

Another difference is that power supplies typically have higher wattage ratings than battery chargers. This means that they can provide more power overall, but it also means that they may be less efficient since some of the power will be wasted as heat.

There is a big difference between a power supply and battery charger. A power supply provides power to an electronic device, while a battery charger charges a battery. A power supply converts AC or DC into low-voltage DC, which is then used to power an electronic device.

A battery charger does the opposite; it takes low-voltage DC and charges a battery. Battery chargers are designed to charge specific types of batteries, so it’s important to choose the right one for your needs. For example, you wouldn’t use a lead acid battery charger on a lithium-ion battery.

Power supplies can be regulated or unregulated. Unregulated power supplies simply convert AC or DC, while regulated power supplies have circuitry that controls the voltage and current output. This makes regulated power supplies more expensive than unregulated ones.

Can a Power Supply Be Used As a Battery Charger?

It is a common question whether a power supply can be used as a battery charger. The simple answer is yes, but there are some things to consider before using your power supply as a charger. Make sure to read the fine print on your power supply and check the amperage rating.

Most importantly, consult with the manufacturer of your device to see if they have any recommendations or warnings about using a power supply as a charger. When using your power supply as a charger, it is important to use one that has an adjustable voltage. This will allow you to set the voltage according to the needs of your device.

It is also important to make sure that the polarity of the plug is correct for your device. Some devices require reverse-polarity charging, so be sure to check before connecting anything. Once you have confirmed that it is safe to use your power supply as a battery charger detailed, connect it and begin charging.

Be sure to monitor the charging process closely and disconnect when finished. Overcharging can damage both your power supply and your battery, so it’s important not to leave it connected for too long.

Difference Between Power Supply And Battery

When it comes to powering your electronic devices, you have two main options: a power supply or a battery. Both have their pros and cons, so it’s important to know the difference before making a decision. A power supply is a device that provides electricity to an electrical device.

It converts one form of energy into another, typically converting AC (alternating current) into DC (direct current). Power supplies are used in a wide variety of electronic devices, from computers and servers to cell phones and tablets. The main advantage of using a power supply is that it provides a consistent source of electricity.

This means that your devices will always have the power they need, even if there are fluctuations in the mains power supply. Additionally, most power supplies can be easily plugged into standard outlets, making them very convenient to use. However, there are some disadvantages to using a power supply.

  • Firstly, they can be quite expensive, especially if you need multiple units for different devices;
  • Secondly, they can be bulky and difficult to transport;
  • Finally, if there is a problem with the power supply itself, it can cause serious damage to your electronic devices.

A battery is another option for powering your electronic devices. A battery stores energy in chemical form and then releases it as electricity when needed. Batteries come in all shapes and sizes, from small watch batteries to large car batteries.

The main advantage of using a battery is that it is portable and can be easily taken with you wherever you go. Additionally, batteries don’t require any external wiring or plugs, making them much easier to set up than power supplies.

12V Battery Charger And Power Supply

A 12V battery charger is a device that charges a 12-volt lead-acid battery. The most common type of charger is the linear charger, which uses a transformer to convert AC current into DC current. The charging process typically takes several hours to complete.

The other type of 12V battery charger is the switch-mode power supply (SMPS). This type of charger uses high-frequency AC to DC conversion, and can charge a battery in a fraction of the time it takes a linear charger. SMPS chargers are more expensive than linear chargers, but they offer significant advantages in terms of speed and efficiency.

When choosing a 12V battery charger, it’s important to consider the type of batteries you’ll be using. Lead-acid batteries require different charging profiles than lithium-ion batteries, for example. You should also consider the size and capacity of the batteries you’ll be charging – a larger battery will require a more powerful charger.

Finally, make sure that the charger you choose is compatible with the voltage output of your power source. Most 120VAC household outlets provide between 110 and 130 volts, which is within the operating range of most 12V battery chargers on the market today.

How to Charge 12V Battery With Power Supply?

We all know how important it is to keep our 12V batteries charged and ready to go. But what do you do when you don’t have a 12V charger handy? You can actually charge your 12V battery with a standard power supply.

Here’s how:

FirstMake sure that your power supply is set to the correct voltage. Most power supplies have multiple settings, so be sure to check that it’s set to 12V before proceeding.
NextConnect the negative (black) lead from the power supply to the negative terminal on the battery.
FinallyPlug in the power supply and flip the switch to “on.”

Your battery should now be charging! Just leave it connected until it reaches a full charge, then disconnect the leads and store your battery in a safe place.

Using USB Charger As Power Supply

Most cell phone users have a USB charger that came with their phone. This charger can also be used as a power supply for other devices. The output of a USB charger is 5 volts, which is enough to power most small electronic devices.

Many people use their USB chargers to power their MP3 players, digital cameras, and portable gaming systems. Some industrial equipment also uses USB charging ports. If you want to use your USB charger as a power supply, there are a few things you need to know.

  • First, not all USB chargers are created equal. Some cheaper chargers may not provide enough power to charge your device properly.
  • Second, it’s important to match the voltage and amperage of your charger to your device. If you try to use a charger with too high or too low of output, it could damage your device.
  • Finally, make sure that the charging port on your device is rated for the amount of current that your charger provides. If it’s not, you could also damage your device by overloading the charging port.

By following these simple guidelines, you can safely and easily use your USB charger as a power supply for all sorts of different devices!

Charger Power Supply

A computer’s charger power supply is one of the most important components. It provides the necessary power to run the computer and all of its peripherals. Without a proper charger, a computer will not be able to function.

There are many different types of charger power supplies on the market, so it is important to choose one that is compatible with your specific computer model. Many chargers are universal, but there are also some that are specific to certain brands or models. When choosing a charger, it is important to consider the wattage rating.

This will determine how much power the charger can provide. A higher wattage rating means that the charger can provide more power and therefore charge the battery faster. However, a higher wattage rating also means that the charger will be larger and heavier.

It is also important to consider the amperage rating when choosing a charger. The higher the amperage, the faster the charge time will be. However, too high of amperage can damage your battery, so it is important to choose a charger with an appropriate amperage for your battery type.

Once you have selected a compatible charger, it is important to follow all instructions carefully in order to avoid damaging your computer or causing a fire hazard.

What is a Power Adapter Used for?

A power adapter is a device that helps to convert one form of electrical energy into another. It is used to supply power to electronic devices, such as laptops, cell phones, and portable speakers. Power adapters come in different shapes and sizes, depending on the type of device they are designed for.

The most common types of power adapters are AC to DC, USB, and Lightning.

Power Cord Vs Power Supply

There are two main types of power cords: those that come with a power supply, and those that don’t. Power supplies are devices that convert one type of electrical current into another, typically from AC (alternating current) to DC (direct current). They’re often used to power computers and other electronic devices.

Power cords, on the other hand, simply carry electricity from one place to another. So, which is better? It depends on your needs.

If you have a device that requires a specific type of electrical current, you’ll need a power supply. But if you just need to connect your device to an outlet, a power cord will do the trick.

power cord vs power supply
Credit: www.alrightpower.com


What’s the Difference Between a Battery Charger And a Power Supply?

A power supply is a device that converts one form of electrical energy into another. A battery charger, on the other hand, is a device used to put energy into batteries. The main difference between a power supply and a battery charger is that the power supply changes AC ( Alternating Current) to DC (Direct Current).

A power supply has voltage regulation which means it can take any input voltage and change it to the correct output voltage for the devices being powered. Power supplies also have current limiting which protects against overloading and short circuits. A battery charger does not have these features because its purpose is simply to charge batteries, not to power devices.

There are two types of battery chargers: linear and switch-mode. Linear chargers use a large transformer to convert AC into DC while switch-mode chargers use electronic components to do this conversion. Switch-mode chargers are more efficient than linear chargers but both types will get the job done.

Can a Regulated Power Supply Be Used As a Battery Charger?

A regulated power supply is a great option for charging batteries. The benefits of using a regulated power supply include:

1. They provide a consistent voltage and current, which helps to prolong the life of your batteries.

2. They are typically more energy efficient than other types of battery chargers.

3. They offer protection against overcharging, which can damage your batteries.

What is Power Supply Mode on a Battery Charger?

When it comes to battery chargers, there are generally two different types of power supply modes: linear and switch modes. Linear power supply mode uses a simple on/off control to deliver a constant current to the batteries being charged, while switch mode power supply uses Pulse Width Modulation (PWM) to deliver a variable current. PWM is more efficient than linear power supplies, but both types of chargers can be used to safely charge batteries.

Is Batteries a Power Supply?

Batteries are a power supply. They store energy and can supply it to an electrical device when needed. Batteries come in many sizes and shapes, from small button batteries to large car batteries.


A power supply is a device that provides power to an electrical device, while a battery charger is a device that helps maintain the charge of a battery. The main difference between the two is that a power supply can provide either alternating current (AC) or direct current (DC), while a battery charger can only provide DC.

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