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Power Budget Calculator
Inputs
Idle power (W)
Actuation current (A)
Actuation duration (seconds)
Cycles per day
System voltage (V)
Buck efficiency (%)
Battery capacity (Wh)
Usable DoD (%)
Solar production (Wh/day)
Other loads share this battery? (Wh/day)
Calculate
Results
Rule of thumb: if daily net < 0 Wh, you're draining the bank. Reduce idle, cut cycles, or add solar.