Volts vs Amperes vs Watts vs mAh: Why so many units? |  

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Most of the devices we use run on batteries these days. We need to charge them frequently. Each device has a different adaptor to charge it. Each has a voltage, current and a power rating. If we use the wrong adaptor, it may damage the device. Our house current bills come in KWh but the battery capacities are in mAh. Why do we have these many units? In this video, we will investigate all these electrical units and see how a battery works.
Watch Full Battery Series: • Battery Series
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