With the development of battery technology, more and more digital devices using the dedicated lithium-ion battery. But some in the air conditioning, television remote control device with less electricity consumption, still is a battery-powered mode, but these devices usually do not show battery charge remaining, so we do not know when replacing the battery.
But savvy Americans say they developed a very simple method for measurement of battery charge remaining, that is, the negative pole of the battery is down and drop, according to its height of the rally will show that it is the amount of charge remaining.
From United States Daniel Steingart of Princeton University and his team found that battery ground bounce height change and physical change occurs when the charge runs out there is a direct correlation.
Through GIF pictures we can find different quantity of batteries at the same altitude to drop almost fell to the ground at the same time, but medium battery touching the ground bounce height difference occurs because different battery. YSL Galaxy S5 Case
Battery 90% battery to full power when there is no rebound, firmly stopping once they are landing on the ground, and with the decline in power, battery bounce height increasing less than 50% power battery bounce height peaked. YSL Galaxy S5 Case
Students have seen this article a sense of new skills get √? Already removed the battery in the remote control fall play?
Of course, to note is that this test method applies only to alkaline dry cell, it does not test more high end batteries such as lithium-ion batteries.
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Powerwall household batteries
"Powerwall", is a rechargeable lithium-ion battery, usually installed on the walls of the family. Can be charged at the trough in electricity demand low prices, electricity prices higher demand during peak output power can also store excess solar power, for use on cloudy days and in power provide power protection.
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