.st0{fill:#FFFFFF;}

Do C and D batteries have the same size? 

 August 15, 2021

By  Phil Borges

You might have seen the battery size abbreviation “C” and “D.” It may seem like these two batteries are interchangeable, but they don't actually mean the same thing.

It's a common misconception that C and D batteries are the same size. They're not. The confusion starts from the fact that they both use the metric system (millimeters). If you're looking for an easy way to remember which battery goes where, just remember this: "C is near your thumb, while D is near your pinky."

Continue reading, and we will discuss here how C and D batteries differ from each other. It is possible that the sizes of these two types of batteries are different. This is important for consumers who want to make sure they purchase the right size in order to power their devices effectively.

What are C and D Batteries?

The C batteries are standard dry cell batteries and are most commonly used in low-energy devices such as toys and flashlights. The power generated by the batteries, however, can quickly drain out if not properly managed.

The D batteries are more significant than the C batteries and are typically found in equipment like cameras and camcorders.

What are the Differences Between a C Battery and a D Battery?

The size of these two battery types may be different. That is why it is essential for consumers to know which device they are purchasing so that they can use the appropriate kind of battery.

The size difference between these two types is actually quite substantial. The letter “C” stands for the length in centimeters, which is approximately 20mm. A “D” battery is around 30mm, which may be slightly too large for a particular device.

Both C and D batteries have 1.5V but differ in energy storage. Batteries are rated by voltage, and the higher it goes, the more capacity for energy storage. This is why a big battery with 1.5 volts will have a much longer life than a small one - even if they're both rated at that same voltage. 

The D-size battery is the best in terms of current. They are the most powerful of all batteries in terms of current delivery. It will deliver more than a C, AA, or AAA-sized battery even if they are both rated at 1.5 volts because it has an increased surface area for electric charge distribution and can hold up to 40% higher capacity when compared with other sizes.

On the other hand, C-size batteries may be lighter, but they lose charge more quickly as time goes by. This is likely why it is common to find C batteries in low-energy devices such as toys or flashlights.

How long does each type of battery last?

The C battery is a long-lasting and cost-effective option for powering your device. This type of battery can last 18 hours or more on average when it's being discharged at 200mA, which makes them perfect for devices that are used sporadically throughout the day while in standby mode.

In contrast to the primary D battery that lasts for about 36 hours in constant use, a rechargeable version lasts up to 2-3 years.

What are the best C batteries to buy?

There are quite a few C batteries that are great for powering your devices. Some fantastic examples are the Duracell Coppertop C Alkaline batteries and Energizer Max C batteries. For rechargeable batteries, one familiar brand is AmazonBasics C Cell Rechargeable batteries. For bulk options, there is an AmazonBasics C Alkaline Batteries pack of 24.

If you will be asking which brand of battery lasts the longest, the best option is Duracell batteries. For decades, Alkaline batteries have been the best-performing battery on the market. Duracell has long maintained its reputation for quality and performance, with its alkalines being a favorite among consumers.

Energizer is also well known as an industry-standard because of how reliable they are across many brands, from TV remotes to emergency flashlights; however, in recent years, Eveready seems to be making some headway by developing new technologies that provide better savings over time. But like any good competition, there will always be the one who triumphs.

What are the best D batteries to buy?

With D batteries, you will want to look for a battery that has the best current delivery. For this, AmazonBasics D Cell Rechargeable batteries are an excellent choice because they offer high levels of power, provide a superb charge and have low self-discharge rates, meaning you can use them whenever needed without having to recharge constantly.

The Duracell Procell D Battery is another popular option because of its long-lasting power. This battery is designed for heavy use and will last a lot longer than other options, meaning these are great to have on hand if you need to change them out with your regular batteries or if they're being used in machines that require a constant charge, such as remote controls. This battery offers ten years of shelf life and is perfect for larger, more energy-consuming devices such as radios or children's toys.

Another great D battery is the Energizer Max D battery. Energizer Max batteries are designed to last up to 15% longer than other alkaline cells. With a 10-year shelf life and eight packs per package, these D Batteries will be ready when you need them most. One best feature of the Energizer Max D battery is its leak-resistant seal which means that no matter if your battery is in a device or not, it will protect against leaks and corrosion.

Some people find Rayovac D batteries to be a great option that provides good power at the right price. The Rayovac D battery is designed to last up to 25% longer than other brands, which might mean there's no need to worry about constantly buying new batteries when your old ones stop working. It also has excellent leak-resistant seals you don't have any worries with corrosion. Rayovac batteries are the perfect battery for all your power-using needs. They have a longer shelf life that can provide enough juice to power children's toys as well as more significant devices like stereos or flashlights.

Frequently Asked Questions about Batteries

Why should I care about this battery information?

It is important to know and be aware of the information about these batteries as it can save you money and time. Knowing which ones to buy will also make it easier for you when picking out a battery that fits for your needs, such as learning how long they last or if they're just rechargeable batteries.

What if the C and B batteries are not labeled?

A battery that is without a label is like a car without a license plate. Without the label, there is no way of knowing what size it is or how long-lasting it will be for your needs.

If you can't read or find an inscription on your batteries, then it will become more difficult to tell which size they are. If that's the case, you should measure them to see how long they are in either inches or millimeters. The D battery is about as large as the C battery, so if it seems that one of the batteries is very big and the other one isn't, then the chances are good that your larger battery will be a D size while your smaller would likely be a C.

Are there some tips when it comes to buying C and D batteries?

You would want to purchase a powerful battery that is still affordable. This ensures you have enough power for your needs.

It's also important to measure your batteries before buying them, so you know what size they are. This way, when measuring them in inches or millimeters, you can quickly tell which size they are.

You may also want to consider the shelf life in terms of how long you will need the battery. If it's a situation where you know it's not going to be used often, then there are options that have less shelf life but last longer per charge, so they're perfect for those types of situations.

Another factor is if the battery can work in extreme temperatures or not, so if you're going to be in a cold environment, then it's vital that the battery can work at those temperatures.

Check the power or mAh. The higher the milliamp hours, the longer your device will last. If you would like to know how long a battery can power your devices before it runs out of juice, calculate its mAh rating divided by 10 (1/10).

Investing in a good quality battery that can last for your needs is important and worth it. By doing so, you're not constantly spending money on new batteries every few weeks or even months.

Final words:

Buying C and D batteries are complex because people use them for different purposes. Batteries are the "lifeblood" of many devices, so it's important to get one that will operate your device effectively.

Remember that C and D batteries have the same size quality in some aspects, but their power varies depending on which kind you get (like is C batteries can last longer than D ones).

There are too many different things to consider when selecting the best battery for your device. How old is it? What type of charger do you use? Batteries are a critical component of any device, and selecting the right one for your needs is important. We hope that this article was helpful to answer your questions about C and D batteries, and it has given you a better gauge on what to look for when picking out a battery should you need one in the future.

About the author

Hi, I'm Phil Borges.. thanks for reading.. My wife says I can't shut up about batteries so to save my marriage I've started this blog .. where I'd be ranting about batteries! Please leave a comment if you have any questions, I'm happy to help!

{"email":"Email address invalid","url":"Website address invalid","required":"Required field missing"}
Battery Tools