Planning assumptions
The calculator uses 5W while active, a 100% duty cycle and 90% usable system efficiency. Actual models vary; measure with a watt meter or use the rating label.
Choose a battery capacity
100Wh150Wh200Wh250Wh300Wh350Wh400Wh450Wh500Wh550Wh600Wh650Wh700Wh750Wh800Wh850Wh900Wh950Wh1,000Wh1,100Wh1,200Wh1,300Wh1,400Wh1,500Wh1,600Wh1,700Wh1,800Wh1,900Wh2,000Wh2,100Wh2,200Wh2,300Wh2,400Wh2,500Wh2,600Wh2,700Wh2,800Wh2,900Wh3,000Wh3,100Wh3,200Wh3,300Wh3,400Wh3,500Wh3,600Wh3,700Wh3,800Wh3,900Wh4,000Wh4,100Wh4,200Wh4,300Wh4,400Wh4,500Wh4,600Wh4,700Wh4,800Wh4,900Wh5,000Wh5,200Wh5,400Wh5,600Wh5,800Wh6,000Wh6,200Wh6,400Wh6,600Wh6,800Wh7,000Wh7,200Wh7,400Wh7,600Wh7,800Wh8,000Wh8,200Wh8,400Wh8,600Wh8,800Wh9,000Wh9,200Wh9,400Wh9,600Wh9,800Wh10,000Wh12,000Wh14,000Wh16,000Wh18,000Wh20,000Wh24,000Wh