Energy Budget and Average Current Draw Calculations

Owned by Owen Li
Nov 24, 2023
1 min read

Energy in Fully Charged Pack: 5241.6Wh

Solar input (from testing): 

2.5A on a 150V pack = 375W (taken at 4pm on semi-cloudy day)

Solar Charging Time (from ASC 2022): 

Tour hours: 9:00am - 6:00pm (9 hours, where you are allowed to drive) (REGS 12.10.A)

Total driving time: 9h * 8 = 72h

Impound hours: 8:00pm - 7:00am (there is 2 hours before and after a race day where the battery is connected and able to charge) (REGS 12.18.B.1)

Total solar input: 11h*2 + 13h*6 = 100h (11h for 2 days because there is no impound before day 1 and after day 8)

Average Power: 

375W*100h = 37,500 Wh (solar input)

5241.6 Wh (full capacity battery)

Total energy = 37,500 Wh + 5241.6 Wh = 42741.6 Wh

(42741.6)/ (72h) = 593.63 W

Average Current Draw:

Avg Current Draw = Avg Power/Nominal Voltage = 593.63W/130.68V = 4.54A