![]() ![]() Nominal means ‘named’, so it is the named voltage of your battery even though the actual measured voltage might be higher or lower. Nominal voltage, for all intents and purposes, is the voltage of your battery. With electricity the meter is measuring the individual electric charges that are going through a wire, and the flow, the current, is measured in Amps. If voltage is the water pressure, imagine a meter on the water pipe that measures how much water, how many water molecules, are passing by a point on the pipe at any one time. It’s not an exact analogy, but if you think of electricity as water, voltage is the water pressure.ĪMPS (denoted as A) are the units used to measure the flow of the energy. ![]() Electric potential is how much electric energy is capable of moving from one point to another – that idea of ‘the ability to do work’ applied to electricity. ![]() To be precise, Volts measure electric potential. VOLTS (denoted as V) are the units used to measure electrical energy. The three basic electrical energy terms you want to know are Volts, Amperes (amps) and Watts. Electrical energy has its own measurements, which are intertwined with these units of mechanical energy. Those examples above are all explanations of mechanical energy, things moving in space. In the end, the distance and speed you will be able to travel in your electric boat and the relationship of the two all come down to the constraints of physics: how much energy and power (which are two different things, as you will find out) it takes to move the weight of your boat against the resistance and force of the water.Įvery day we all throw around phrases like ‘I have a lot of energy’ … ‘does the government have the power to do that’ … but when it comes to figuring out what you need for your boat, physics has very specific definitions for those terms. I think it’s helpful to have a quick review of physics because it helps in understanding the electricity aspect of propulsion. Table of Contents Table of Contents 1 Physics Terms: Energy, Force, Work, Power 2 Electricity Terms: Volts, Amps, Watts 3 Battery power for your electric boat motor 4 Power and Range – kiloWatts, kiloWatt hours, Amp hours 5 Reading battery specifications 6 How batteries work 7 Battery cells, modules and packs 8 BMS: Battery Management System 9 Battery Chemistries 10 Charging ![]()
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