Langtian Blog

DCIR testing focuses on measuring the voltage change of a battery under a short pulse current to accurately calculate its internal resistance. Transient voltage changes are often very small, so if the testing equipment lacks sufficient precision, fast response, or proper channel configuration, measurement errors may occur, making it impossible to correctly assess battery health or...

1. What is DCIR? What exactly is DCIR in battery testing, and why do we perform DCIR tests? DCIR stands for DC Internal Resistance. Simply put, it measures the internal resistance of a battery. To make it easier to understand, let’s use a daily life analogy: you can think of a battery as a water pipe....

When people hear “battery testing,” it often sounds full of technical jargon.But the GITT test—short for Galvanostatic Intermittent Titration Technique—is actually easy to grasp if we think about something familiar: how an athlete trains.Let’s use this “running and resting” analogy to understand what GITT really does and why it matters in battery research. 1. What Is GITT?...

In the fast-paced world of battery development—from smartphones to electric vehicles (EVs) and energy storage systems—reliable performance and safety are non-negotiable. But how do engineers ensure a battery can handle daily use, avoid overheating, and deliver consistent power? The answer lies in targeted charging tests—and that’s where CC, CV, and CC–CV modes come in. These...

In battery testing scenarios, “CC” is one of the most frequently mentioned terms, especially in R&D and production inspection processes. However, for those new to the field, questions like “Why must we use CC testing?” and “What problems does it actually solve?” are often unavoidable. Today, we’ll use simple analogies to thoroughly explain CC...