Lithium Ion Battery Size Chart: A Comprehensive Guide

Lithium ion batteries come in a wide range of sizes, from the tiny 18650 cells used in flashlights to the massive 48V 100Ah packs used in electric vehicles.

The most common lithium ion battery sizes are AA, C, D, and 9V, which are widely used in portable electronics and household devices.

These smaller batteries are often used in devices that require a lot of power, but can't handle the weight or size of a larger battery.

The size of a lithium ion battery is measured in terms of its diameter and height, with the most common sizes ranging from 10mm to 70mm in diameter and 10mm to 200mm in height.

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Lithium-ion batteries come in various shapes and sizes, each designed for specific applications. Cylindrical batteries are one of the most common types, often used in devices like laptops and power tools.

These batteries are great for their versatility and reliability. Square batteries, also known as prismatic batteries, are commonly used in mobile phones and tablets due to their rectangular shape that makes them easy to pack tightly within devices.

Button batteries are small and round, often used in watches and hearing aids. Special-shaped batteries are designed for unique applications, such as implantable medical devices.

Pouch batteries are a type of lithium-ion battery that's gaining popularity due to their flexibility and compact design.

Here's a quick rundown of the main types of lithium-ion batteries:

Each type of battery has its own advantages and disadvantages, making it suitable for different applications.

There are several common battery shapes used in lithium-ion batteries, each with its own unique characteristics.

Cylindrical batteries are perhaps the most recognizable, resembling AA batteries but available in various sizes and capacities. They are known for their durability and high energy density.

Square batteries, also known as prismatic batteries, are commonly used in smartphones and tablets due to their compact size. They are also used in portable electronics for efficient space utilization.

Here's a brief overview of the most common battery shapes:

Cylindrical batteries are a common shape you'll find in many devices. They resemble AA batteries but come in various sizes and capacities.

The most recognizable cylindrical lithium batteries are available in sizes like 18650, 21700, and 26650. These batteries are known for their durability and high energy density, making them ideal for high-drain devices.

The 18650 battery is the most common size, measuring 18mm in diameter and 65mm in length. It's widely used in laptops, flashlights, and electric vehicles.

The 21700 battery is slightly larger, measuring 21mm in diameter and 70mm in length. It offers higher capacity and is becoming popular in electric vehicles and power tools.

The 26650 battery is bigger yet, measuring 26mm in diameter and 65mm in length. It's used in applications requiring more power, like electric bikes and high-performance flashlights.

Here's a list of some common cylindrical battery sizes:

These sizes are just a few examples of the many cylindrical battery sizes available. Each size has its own unique characteristics and uses.

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Prismatic batteries, also known as square lithium batteries, are used in mobile phones and tablets due to their compact size.

One of the most common sizes of prismatic batteries is 103450, which measures 10mm in thickness, 34mm in width, and 50mm in height.

These batteries are perfect for devices where space is limited, like smartphones. They offer a great balance of size and capacity, making them ideal for tablets as well.

The 803860 battery is another common size, measuring 8mm in thickness, 38mm in width, and 60mm in height. This size is also widely used in portable electronics for efficient space utilization.

Here are some common square battery sizes:

Prismatic batteries are commonly used in portable devices, making them a convenient option for users who need a reliable power source on the go.

Pouch lithium batteries are flexible and lightweight, encased in a soft, flat pouch, making them ideal for thin and light devices.

These batteries are gaining popularity due to their versatility and high energy density.

Some common pouch battery sizes include the 403450, which measures 4mm in thickness, 34mm in width, and 50mm in height.

The 606090 measures 6mm in thickness, 60mm in width, and 90mm in height.

The 9095100 is larger, measuring 9mm in thickness, 95mm in width, and 100mm in height.

Here's a list of the common pouch battery sizes mentioned earlier:

Pouch batteries offer better energy density and packaging efficiency compared to cylindrical cells, although they may not be as robust.

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Special battery shapes are designed to fit unique applications where standard shapes won't work. These shapes are tailored to specific devices, making them a great solution for compact designs.

Smartphones often use special-shaped lithium batteries for their slim design. Tablets also benefit from these batteries, which provide high energy density in a compact form.

Prismatic cells are a type of special-shaped battery that's rectangular in shape, allowing for better space utilization in battery packs. They're often used in applications where space is at a premium, such as in power banks and energy storage systems.

Here are some common special-shaped batteries and their uses:

Special-Shaped Batteries are designed for specific applications where standard shapes won't fit. They come in various shapes and sizes, tailored to devices such as smartphones.

Smartphones often use Special-Shaped Lithium Batteries due to their slim design, allowing for a sleek and compact form factor. This is especially useful for devices with limited space.

Tablets also make use of these batteries, providing high energy density in a compact form. This is crucial for devices that require a lot of power but have limited space.

Electric Vehicles are another area where Special-Shaped Batteries are used, thanks to their flexibility and efficiency.

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Standard prismatic shapes are a game-changer for compact designs. They offer better space efficiency than cylindrical cells, making them ideal for applications where space is at a premium.

Prismatic cells are rectangular in shape, allowing for easier integration into compact designs. This shape also enables better space utilization in battery packs.

Some standard sizes of prismatic cells include 103450 and 18650, which are used in various applications. These sizes provide a good balance between energy density and space efficiency.

Here are some key characteristics of standard prismatic shapes:

Lithium ion batteries come in several different forms, each with its own unique characteristics. The most common types are cylindrical, prismatic, and pouch cells.

Cylindrical batteries are the most widely used type, accounting for over 90% of all lithium ion batteries. They are typically used in portable electronics and electric vehicles.

Prismatic batteries are used in applications where space is limited, such as in smartphones and laptops. They are also used in some electric vehicles.

Pouch cells are used in applications where flexibility is important, such as in wearable devices and medical implants. They are also used in some high-drain devices like power tools.

The size of a lithium ion battery is often measured in terms of its diameter and height. The most common sizes are 18650, 21700, and 26650.

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Battery dimensions are a crucial aspect of selecting the right lithium-ion battery for your needs. Cylindrical lithium batteries, for example, are available in various sizes and capacities, making them ideal for high-drain devices.

Pouch batteries, on the other hand, are labeled by their thickness × width × height in millimeters, such as a “103450” cell, which is 10 mm thick, 34 mm wide, and 50 mm high.

Prismatic lithium batteries, known for their rectangular design, vary in size depending on the manufacturer and application, but common dimensions range from 50 × 70 × 90 mm to 100 × 200 × 300 mm.

Here's a quick reference table for some common lithium-ion cell sizes:

Understanding these dimensions and capacities will help you make informed decisions when choosing the right lithium-ion battery for your specific application.

Prismatic batteries are rectangular in shape, making them easier to pack tightly within devices. This shape allows for better space utilization in battery packs.

Prismatic batteries are commonly used in mobile phones, tablets, electric vehicles, solar energy storage, power banks, and Uninterruptible Power Supplies (UPS). Their rectangular shape makes them ideal for stacked battery modules.

These batteries vary widely in size depending on the manufacturer and application, but some typical configurations and size ranges are widely used across industries. Common prismatic battery characteristics include a voltage range of 3.2V to 3.7V, a capacity range of 2000 mAh to 30,000+ mAh, and dimensions ranging from 50 × 70 × 90 mm up to 100 × 200 × 300 mm.

Prismatic cells are often selected for systems where modular design and structured packing are more important than absolute energy density. Their rigid rectangular shape makes them easier to integrate into compact designs.

Here are some common prismatic battery characteristics at a glance:

Their rigid rectangular shape also makes them generally less efficient in terms of energy density compared to cylindrical cells.

The 18650 cell size is widely available and cost-effective, making it a popular choice for laptops and power tools.

These cells typically have a capacity of 1500-4000mAh and a diameter of 18mm.

The 21700 cell size, on the other hand, has a higher energy density and longer lifespan, making it suitable for applications like Tesla EVs and e-bikes.

It offers a typical capacity of 3000-6000mAh and a diameter of 21mm.

The 26650 cell size is designed to maximize capacity in limited space, with a typical capacity of 2400-6000mAh and a diameter of 26mm.

Here's a comparison of the three cell sizes:

The standardization of the 21700 cell size by the IEC in 2018 has driven its adoption across EV manufacturers, ensuring compatibility between batteries from major suppliers.

Battery size is crucial when selecting lithium-ion batteries for your project. You'll want to choose a battery that fits your device's dimensions.

There are several types of lithium-ion batteries, each with its own unique size and application. Cylindrical batteries, for example, come in sizes like 18650 (18mm diameter × 65.0mm length) and 21700 (21mm diameter × 70mm length).

For square batteries, the model name indicates the thickness, width, and height in millimeters. For instance, ICP103450 represents a square battery with a thickness of about 10mm, a width of about 34mm, and a height of about 50mm.

Here's a handy table comparing some common battery sizes:

Understanding these different battery sizes will help you make informed decisions when selecting the right battery for your project.

A battery size chart can be a lifesaver when you're trying to choose the right battery for your project. Pouch lithium batteries, also known as LiPo batteries, are flexible and lightweight, making them ideal for thin and light devices.

One common size for pouch batteries is the 403450, which measures 4mm in thickness, 34mm in width, and 50mm in height. Another popular size is the 606090, measuring 6mm in thickness, 60mm in width, and 90mm in height.

The table below compares the different sizes of lithium-ion batteries:

Custom packs are designed to meet specific performance, size, and durability requirements. They're not your standard off-the-shelf batteries.

You can find custom lithium battery sizes and packs in Part 9 of our article. These packs are tailored to exact specifications, making them perfect for unique applications.

Standard sizes may not suit all applications, and that's where custom packs come in. They can be tailored to meet exact performance, size, and durability requirements, as mentioned in Part 9.

Custom packs are often used in special applications, such as electric vehicles. They provide flexibility and efficiency, making them a great choice for EVs.

Some common custom pack sizes include 403450, 606090, and 9095100. These sizes are mentioned in the table of lithium-ion battery sizes in Part 8.

Here's a brief overview of some common custom pack sizes:

Understanding battery size codes can help you quickly identify the cell's physical characteristics. It's a simple way to know what you're dealing with, especially when you're working with different types of batteries.

The code 18650 refers to a battery with a diameter of 18mm and a length of 65.0mm. This is a common size for many rechargeable batteries.

A battery with the code 104050 has a thickness of 10mm, a width of 40mm, and a height of 50mm. These dimensions are unique to this specific type of battery.

The code CR2032 is a coin-shaped battery with a diameter of 20mm and a thickness of 3.2mm. This is a common size for many small devices.

Here are some common battery size codes and their corresponding dimensions:

Largest battery size is a must for demanding applications. These applications include electric vehicles, industrial backup power, or renewable energy storage systems.

Large-sized batteries are designed using lithium chemistries to increase battery life and performance. This is because lithium chemistries offer high-energy storage.

The largest lithium battery size is 48V 100Ah LiFePO4 battery, as provided by Ufine. This battery has high capacity and is specifically built for demanding applications.

Some notable features of Ufine's 48V 100Ah LiFePO4 battery include stable chemical and thermal properties, reducing combustion risk. The battery also has a durable design with a long lifespan through multiple charge cycles.

Ufine's 48V 100Ah LiFePO4 battery offers steady voltage for consistent power delivery. This is beneficial for applications that require reliable and long-lasting power sources.

Here are some key features of large-sized lithium batteries:

Smallest battery sizes are perfect for IoT devices, wearable technology, and compact electronic devices. They provide sufficient power in small form factors, enabling the development of portable and lightweight gadgets.

For instance, Ufine's smallest battery size is a 3.7V 300mAh lithium-ion battery, which is ideal for low-power applications. It can even operate in extreme environmental conditions, such as -40oC.

If you're looking for a reliable power source for your electronics, Ufine's smallest battery size is a great option. It provides consistent power and has a long lifespan, making it cost-effective in the long run.

Expand your knowledge: Smallest Battery Size

Here are some key features of Ufine's smallest battery size:

In terms of size, Ufine's smallest battery is compact, but it's not the only small battery size available. Other small battery sizes include the 18650 cylindrical battery, which is commonly used in laptops and tools, and the CR2032 button cell battery, which is used in remotes and IoT sensors.

Additional reading: Small Battery Size Chart

To choose the right lithium-ion battery size for your device, start by checking your device's specifications for voltage, capacity, and size requirements. This will help you narrow down your options and ensure you get a battery that's compatible with your device.

Measure the available space in your device's battery compartment to ensure a comfortable fit. You don't want a battery that's too big or too small for the space.

Consider your runtime needs and opt for a higher capacity battery if you need extended use. For example, a larger battery like the 26650 might be better for long camping trips with a flashlight.

Rechargeability is also an important factor to consider. If you plan to use the battery long-term, make sure it's rechargeable for cost-effectiveness and environmental friendliness.

Stick to well-known brands for reliability and safety. Choosing batteries from reputable manufacturers can help you avoid safety risks like overheating and explosions.

Here are some key factors to consider when selecting a lithium-ion battery: