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Portable power knowledge base

Start with the load. Then choose the battery.

These guides separate electrical compatibility, daily energy, recharge access, and safety constraints so a larger battery is never mistaken for a complete solution.

Capacity and electrical fundamentals

Use these pages to understand energy, output, voltage, and the order in which each constraint should be checked.

Capacity guideWhat a 1,000Wh power station can runUsable AC energy, representative runtimes, and four current product records.Open this guide
What a 2,000Wh power station can runHigher-capacity outage planning with three current source-reviewed models.Capacity guide120V vs 240V power stationsVoltage, split phase, receptacles, startup, and safe home-connection limits.Electrical guide

Appliance backup guides

Model-specific evidence and conservative planning for loads that cycle, start hard, require approved power paths, or must shut down safely.

Featured guideRefrigerator backup powerCompressor startup, cycling, runtime, and food-safety context.Open this guide
Pellet stove battery backupControlled shutdown, waveform, manufacturer guidance, and cycle measurement.Sump pump backup powerMotor startup, wet-weather duty cycle, alarms, and layered flood protection.Well pump backup power120V, 240V, soft start, pump input, and professional connection requirements.Gas furnace backup powerBlower behavior, controls, transfer equipment, grounding, and measurement.CPAP battery backupDevice settings, humidification, approved converters, reserve, and medical limitations.Starlink Mini power useCommunications runtime, supported direct power, AC overhead, and recharge.

Planning tools

Replace representative examples with the actual appliance and outage plan.

Featured guidePower station runtime calculatorEstimate one load after capacity, efficiency, duty cycle, and startup inputs are set.Open this guide
Outage load plannerCombine essential loads into daily energy, peak running, and peak starting demand.

Every guide uses the same compatibility order.

Voltage and connection come first, continuous output comes second, startup behavior comes third, and runtime comes last. The methodology page documents the calculations and evidence labels used throughout the site.

Read the calculation and evidence methodology