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Video
Beginner
Reading time: 7 min
In this Eleshop video, we explain what battery internal impedance is, why it’s important, and how to measure it accurately. We demonstrate two popular battery testers: the Fnirsi HRM-10, which is an affordable option suitable for small businesses, and the Hioki BT3554-51, a professional-grade tester designed for high precision and automated measurements.Read More

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Beginner
Reading time: 3 min
Testing individual cells in old or defective battery packs can be a lengthy process, often requiring hours per cell when using traditional charge/discharge cycles. This article discusses a faster alternative—measuring internal resistance—to quickly assess battery condition. While this method doesn't provide a full capacity measurement, combining it with a two-step approach can significantly reduce testing time.Read More

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Beginner
Reading time: 4 min
Lithium-Ion batteries have become increasingly prevalent thanks to their improved quality and reduced costs. However, their lifespan isn't infinite. This article explores effective techniques to assess how much life is left in these batteries, focusing on rapid resistance measurements and the advantages of 4-wire testing methods.Read More

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Video
Beginner
Reading time: 10 min
Power analyzers can be used to measure the flow of energy in either AC or DC systems. A power analyser can also be used to measure the standby power consumption of devices. A lot of devices consume electricity when they appear to be turned off or while they are inactive, such as your TV or your microwave oven. This power consumption is known as standby power and can be a significant contributor to product energy use. The standby power of household electronic devices is typically very small, but the sum of all these devices within the household and over the span of a year can easily become significant.
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