Sump Pump Battery Backup

Determine the right battery size for your sump pump system during outages.

Calculate battery capacity in Amp-Hours based on pump horsepower, duty cycle, runtime, and battery type. Compare 12V vs 24V systems and lead-acid versus lithium options.

Key Features

Precise Amp-Hour capacity calculations
12V and 24V system support
Lead-acid vs AGM vs Lithium guidance
Duty cycle and runtime customization
Estimated battery bank cost range
Safety margin recommendations

Pump Specifications

Pump Horsepower

System Voltage

Battery Type

Desired Runtime & Usage

Desired Runtime (hours)

12 hours

Pump Duty Cycle (minutes per hour)

5 min/hr

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