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Voltage, otherwise known as electrical potential difference (denoted ∆V and measured in volts) is the difference in electric potential between two points (adapted from Wikipedia). Voltage can be constant (DC) or varying (AC).

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Difference between more batteries and boosting voltage

1.) Converter losses, but not too much. Good converters have 90-95% efficiency 2.) What is your load? If you have 9V 1A batteries as example, P= U*I = 9W. At 18V you will be able to draw 500mA from 1 …
Willy Wonka's user avatar
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Is there a way to take a battery power source at 7.1volts 15Amps and convert it to 5volts 4A...

Your total power (aside from converter losses when you lower the voltage) will not change. In this case you want to manipulate just voltage, and there are several ways of doing this. 1.) … A linear converter that transforms excess voltage into heat, which is not recommended because you have a battery powered application, meaning that every bit of efficiency is important. 2.) …
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