Customer Case Study: Building a Custom Battery Pack with Samsung 30Q 18650 Cells

Project Overview

Every battery pack starts with the right cell selection. In this customer project, Samsung INR18650-30Q lithium-ion cells were assembled into a custom battery module, demonstrating how cylindrical cells can be integrated into a practical battery pack design.

Using individual 18650 cells, the customer built a structured assembly with an orange cell holder, metal interconnections, and a flexible circuit for cell connections. The result showcases a hands-on approach to battery pack assembly, where cell arrangement and electrical connections are integrated into a compact housing.

The Customer's Battery Assembly

The photos show the customer's assembly process and the internal structure of the battery module.

1. Samsung 30Q Cells for Custom Battery Pack Assembly

The customer selected Samsung INR18650-30Q cells for the project. With a nominal capacity of 3,000mAh per cell, the 30Q is a lithium-ion cell designed for applications that require a balance of capacity and discharge performance.

2. Organized Cell Arrangement

The cylindrical cells are positioned in a dedicated orange holder. This structure helps maintain cell alignment and provides a defined layout for the battery assembly.

3. Integrated Electrical Connections

Metal connecting strips and a flexible circuit are visible in the assembly. These components form part of the cell interconnection structure, helping integrate individual cells into a battery module.

Why Choose Samsung 30Q 18650 Cells?

The Samsung INR18650-30Q is a popular choice for battery pack projects that require a reliable, rechargeable lithium-ion cell.

Its key characteristics include:

• Cell format: 18650 cylindrical lithium-ion cell

• Typical capacity: 3,000mAh

• Nominal voltage: 3.6V

• Application suitability: Custom battery packs and compatible portable power applications, subject to the system's electrical and safety requirements

When designing a battery pack, cell selection should be based on the application's voltage, capacity, discharge current, operating temperature, and expected service life.

Looking for 18650 Cells for Your Next Project?

Whether you are developing a custom DIY, building a prototype, or sourcing cells for production, choosing the right battery cell is an important first step.

We supply lithium-ion battery cells for a variety of battery pack development and manufacturing needs. Contact our team to discuss your required cell model, quantity, and application, and we can help you identify a suitable option for your project.

Contact us today to discuss your battery cell requirements.