Because of the variances that could occur in AH ratings, an industry standard was implemented.įor deep cycle batteries, the 20 Hour Rate is the accepted AH rating time period for the majority of Deep Cycle Batteries. If you discharge a battery over the course of 100 hours, the AH rating looks higher than if you discharge that same battery over the course of an hour. The Peukert Effect is directly related to the internal resistance of the battery. This is This is called the Peukert Effect. The battery’s AH rating decreases the faster you use it. An ampere is a unit of measure of the rate of electron flow or current in an electrical conductor.įor example, if you have an appliance that draws 20A and you use it for 20 minutes, then the amp hours used would be:Īs you’ll note from the equation above, The faster a battery is drained (discharged), the less overall amperage is available. An ampere hour (abbreviated Ah, or sometimes amp hour) is the amount of energy charge in a battery that will allow one ampere of current to flow for one hour. It does not store any personal data.All Deep Cycle batteries are rated in Amp Hours (AH). The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. The cookie is used to store the user consent for the cookies in the category 'Performance'. This cookie is set by GDPR Cookie Consent plugin. The cookies is used to store the user consent for the cookies in the category 'Necessary'. The cookie is used to store the user consent for the cookies in the category 'Other.

The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category 'Functional'. The cookie is used to store the user consent for the cookies in the category 'Analytics'. These cookies ensure basic functionalities and security features of the website, anonymously. Necessary cookies are absolutely essential for the website to function properly. I (A) = P (W) / (3 x PF x V L-N (V)), which means that the phase current in amps is computed by dividing the real power in watts by the multiplication of three by the power factor multiplied by the line to neutral voltage in volts. Then the result is multiplied by the line to line voltage RMS in volts. I (A) = P (W) / (√3 x PF x V L-L (V)), which means that the phase current in amps is computed by dividing the real power in watts by the multiplication of square root of three, time the power factor. What is the phase current in amps if the voltage RMS is 158 Volts?Ĭalculating the AC three phase watts to amps Line to line Voltage If the power consumption is 186 watts and the power factor is 0.4. I (A) = P (W) / (PF x V (V), where the phase current in amps is calculated by dividing the real power in watts by the power factor multiplied by voltage in volts If the power consumption is 214 watts with a voltage supply of 145V, what is the current in amps?Ĭalculating the AC single phase watts to amps I (A) = P (W) / V (V), where the current in amps is computed by dividing the power in watts by the voltage in volts. The current result in amps is displayed below the two switch controls, and you can always perform a variety of calculations after resetting the calculator. Enter the power in watts and the voltage in volts before clicking the ‘Calculate' button which performs the conversion. It can either be Direct Current (DC) or the Alternating Current (AC) single phase/ three phase. You can start by selecting the type of electric current.

It is used to convert the electric power in watts (W) to the current in amps (A).

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Watts to amps calculator