Most Popular Lithium-Ion Cells for Custom Battery Packs

There are several different types of lithium-ion batteries that are commonly used in custom battery packs. The most common type is the 18650 cell, which is a cylindrical cell with an 18mm diameter and a length of 65mm. These cells are commonly used in laptop batteries and other high-power applications.

Another popular lithium-ion cell is the 26650 cell, which is slightly larger than the 18650 cell. These cells are commonly used in high-power applications such as electric vehicles.

The third type of lithium-ion cell commonly used in custom battery packs is the 21700 cell. This cell is similar in size to the 18650 cell, but has a slightly larger diameter and length. These cells are commonly used in high-power applications such as electric vehicles.

Many lithium-ion cells are in short supply, so it is important to choose the right one for your custom battery pack.

Lithium-ion batteries are generally divided into three categories - high power, high energy, and balanced.

High power lithium-ion batteries are commonly used in applications that require high discharge rates, such as robotics, drones, and power tools. These batteries tend to have lower capacity and cycle life than high energy batteries, but can deliver more power.

High energy Li-ion batteries are often used in applications that require long battery life and cycle life, such as laptops and asset tracking devices. These batteries tend to have higher capacity than high power batteries, but can deliver less power. They also tend to be safer because they often contain a CID (current interrupt device).

Balanced Li-ion batteries are a compromise between the two and are suitable for many applications. Balanced Li-ion batteries typically have a capacity of around 2200mAh.

Engineers often ask us which Li-ion battery is best for a custom battery pack. The answer really depends on the application, but here are some of the most popular Li-ion batteries.

If you are looking for advice on which battery is best for your application, please contact one of our battery designers. We will analyze your mechanical and electrical needs and select the best battery based on your specifications. Please schedule a free consultation here. If you have already selected a battery, we can design the BMS as well as the mechanical enclosure.