BLOG & TECHNICAL GUIDES

A working library for better specifications.

Practical reading about selection, integration and purchasing. Each guide includes source references and connects to a relevant project discussion.

FEATURED BLOG GUIDE / CYLINDRICAL PACK ENGINEERING

Understanding Series and Parallel in an 18650 Pack

Read an S/P configuration and connect cell selection to voltage, capacity, current and the physical pack design.

3 original guides · Jetray editorial team · Updated 4 November 2026

Engineering insight · 3 min read

Read an S/P configuration and connect cell selection to voltage, capacity, current and the physical pack design.

Engineering insight · 3 min read

Why cell format and capacity are insufficient selection criteria for OEM battery packs with demanding load profiles.

Engineering insight · 3 min read

Build a receiving process around approved identity, documentation, dimensions and controlled performance checks.

Choose a reading path

The Blog connects practical product selection with integration and purchasing decisions.

Start here when…	Consider these questions	Read next
You are defining the requirement.	Read the configuration as a starting point · Connect nominal voltage to the operating window	Understanding Series and Parallel in an 18650 Pack
You are integrating a configuration.	State the operating problem first · Compare cells under relevant conditions	Choosing 18650 Cells for Energy or Power Priorities
You are preparing an RFQ or evaluation.	Inspect against an approved baseline · Check identification before measurements	Incoming Inspection for an OEM 18650 Battery Pack

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