T2 · Energy budget · free up to 6 loads

What does a day aboard draw, and what puts it back?

List what runs and for how long in a typical day away from the dock. Circuit Locker adds it up, sizes a battery bank for the days between charges, and works out the solar or charging that replaces it.

Your loads

	What	Amps	Hours/day
1
2
3
4
5
6

Amps from each device's label; a fridge's hours are the hours its compressor actually runs.

Bank and charging

System voltage

12 V24 V

Battery type

Lead-acid / AGM LiFePO4

Usable share (%)Blank = 50 lead, 80 LiFePO4

Days between charges

Sun hours a dayYour location's figure

Charging ampsAlternator or charger, optional

Free: 6 loads. The Locker Pass ($1.95 a month, $19.50 a year or $1.00 for 7 days) allows 30: free during preview. Pricing

Your day appears here

Try a sample weekend (sample figures: replace them with the numbers on your own devices).