How do you know if the battery is empty or full? Chip.de has a suggestion for this. All you need for this practical method is a fully charged battery. Take this and the battery to be tested and drop it vertically on a hard surface such as a table from a height of about 15 to 20 centimeters.
A completely empty battery jumps back up after impact. The battery, which is still full, hardly jumps and drops immediately. Alkaline batteries contain a gel mass. When the battery dies, it becomes solid. The rugged interior allows a dead battery to bounce off the ground and back into the air. While the batteries are still charged, the gel mass is still soft and cushions the impact. Therefore, these fall directly from the jump.
BASED ON RESEARCH
According to an article published in TÜBİTAK Bilim Genç in 2015, this is actually based on a research by scientists from Princeton University. Scientists have determined that the degree of bounce of the batteries is related to their charge rate.
According to the research published in the Journal of Materials Chemistry A, the height reached by the batteries dropped from a certain height after hitting the floor increases as the charge rate decreases.
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