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Thermochromic battery tester
Have you ever wondered how those little, colorful battery tester strips work? They're thermochromic: they change color according to the temperature. When you press the contacts, you complete a circuit, causing a current to flow through the tester. The more energy left in the battery, the bigger the current, the hotter the strip, and the higher the reading.
This comes from our article about how thermochromic materials work.
Our images are published under a Creative Commons Licence (see opposite) and are free for noncommercial use. We also license our images for commercial use. Please contact us directly via our website for more details.
Thermochromic battery tester
Have you ever wondered how those little, colorful battery tester strips work? They're thermochromic: they change color according to the temperature. When you press the contacts, you complete a circuit, causing a current to flow through the tester. The more energy left in the battery, the bigger the current, the hotter the strip, and the higher the reading.
This comes from our article about how thermochromic materials work.
Our images are published under a Creative Commons Licence (see opposite) and are free for noncommercial use. We also license our images for commercial use. Please contact us directly via our website for more details.