- #1

shahabkhan

- 6

- 1

I am performing some calculations but struck with confusion whether I am doing it correct or wrong due to contradictions of these calculations on different calculators websites. I hope here someone will help me with the validation of my calculations.

Q1) If above both calculations are correct does it mean that I can constantly draw 100 kW from the battery for 51 minutes?

Q2) This

Q3) What is 10 in the equation given on this

Thank You

Code:

```
Battery Capacity = 150 Ah
Battery Nominal Voltage = 666 V
Efficiency Charge/Discharge = 0.87
Power Demand = 100 kW
Current Demand = 150 A
Battery Discharge Time = (Battery Capacity x Battery Voltage x Efficiency ) / Power Demand
Battery Discharge Time = (150 x 666 x 0.87) / 100000
Battery Discharge Time = 0.87 Hours
Battery Discharge Time = 51 Minutes
Alternative Method
Battery Discharge Time = (Battery Capacity x Efficiency) / Current Demand
Battery Discharge Time = (150 *0.87)/150
Battery Discharge Time = 0.87 Hours
Battery Discharge Time = 51 Minutes
```

Q1) If above both calculations are correct does it mean that I can constantly draw 100 kW from the battery for 51 minutes?

Q2) This

**https://www.digikey.co.uk/en/resources/conversion-calculators/conversion-calculator-battery-life**tells a different story for calculating a run time when you put 150 Ah and 100000 W Load = 0.015 Hour Run timeQ3) What is 10 in the equation given on this

**website**for calculating run time. Run time = (10 * Ampere Hours) / Load in WattsThank You

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