Hardware tool
Solar Battery Bank Calculator
Size a battery bank from daily energy use, autonomy, voltage, depth of discharge, and losses.
Runs in your browserResult
- Required usable energy
- 6,000 Wh
- Nominal bank energy
- 8,333 Wh
- Required capacity
- 173.6 Ah at 48 V
- Battery modules
- 2
- Nominal kWh
- 8.33 kWh
Battery chemistry, surge loads, inverter limits, temperature, aging, series/parallel layout, reserve policy, and code require a complete system design.
How to use this solar battery bank calculator
- Enter the rated capacity or power, expected load, losses, and safety allowance from the equipment labels or plan.
- Review the calculated totals, units, and assumptions. Check the inputs and units before relying on the result.
- Change one input at a time to compare another case, then copy or save the result you plan to use.
About this solar battery bank calculator
Use the Solar Battery Bank Calculator to size a battery bank from daily energy use, autonomy, voltage, depth of discharge, and losses. The result changes when you adjust the values or options above.
You can also use it to compare results after changing one input.
Example
Enter daily watt-hour use, days of autonomy, system voltage, depth of discharge, and losses to estimate battery capacity.
Common uses
- → size a battery bank from daily energy use, autonomy, voltage, depth of discharge, and losses
- → compare results after changing one input
- → save an estimate for planning or comparison