Deep Cycle Battery Calculator

Deep Cycle Battery Finder

The required size and type of deep cycle battery vary based on application and usage conditions. Ensuring the battery has adequate capacity to power your equipment is essential. This calculator is used to determine daily consumption and maximum runtime of your auxiliary power.

Power Consumables Usage per day
Battery voltage Device name Device quantity Watts Amps Hours Mins Ah/day
Power Consumables
Battery voltage
Device name
Usage per day
Please select the efficiency of the inverter (if known)
Capacity per day
0.00 Ah/day
+10% (system losses)
0.00 Ah/day
Total Capacity
0.00 Ah/day

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  1. Batteries are fully charged every day.
  2. All load is served by the batteries, with no direct power from solar.
  3. Batteries are installed and connected correctly, according to manufacturer guidelines.
  4. No significant power loss due to wiring or connection issues.
  5. No additional parasitic loads that could drain the battery unexpectedly.


This calculator is for informational purposes only and should not be relied upon as the sole basis for critical decision-making. For detailed guidance tailored to your specific application and conditions, always consult with a battery professional or the manufacturer.