Electrical Power calculator

Calculate power (Watt)

Potential ?3.8 V (Volt)
Current ?11.5 A (Ampere)A = C/s
Resistance ?0.33 Ω (Ohm)Ω = V / A
Active power ?43.71 W (Watt)rate of energy transfer / W = V * A

Calculate energy (KWh/Joule)

After 1 hours of continuous power usage:

Charge (Ah)11.5 Ah
Energy (kWh)43.71 Wh
Energy (Joule)157.37 MJ
Energy (Calorie)37.58 Mcal

Calculate capacity (mAh/Wh)

Compare capacity with [AA batteries] [Powerpack] [Phone]

Battery typeWatt-hourempty after
Iphone 5 - 1440mAh @ 3.8V:5.47 Wh7.5 minutes
Iphone 5s - 1570mAh @ 3.8V:5.97 Wh8.2 minutes
Iphone 6/7 - 1880mAh @ 3.8V:7.14 Wh9.8 minutes
Iphone 6s/7s - 2915mAh @ 3.8V:11.08 Wh15.2 minutes
Samsung Galaxy S8 - 3500mAh @ 3.85V:13.48 Wh18.5 minutes

References

  • AC Power
  • Difference Between Watts And Volt-Amperes