Power · Offline
Field Power & Solar Tools
Size a whole emcomm or backup system, or drill into individual battery and solar calculators — all work offline in the field.
Start here
Emergency Power System Sizer
List every load, set days of backup without sun, and get recommended battery Ah and solar watts in one shot.
Open system sizer →Individual calculators
Each tool stands alone — use when you only need one piece of the math.
Battery Runtime
Capacity and load current → hours.
Calculator
Solar Panel Sizing
Daily Wh → panel watts.
Calculator
LiFePO₄ vs SLA
Chemistry-aware usable Ah.
Calculator
Starlink / Field Power
Multi-device watt budget.
Calculator
Wire Gauge Ampacity
DC cable sizing for your bank.
Calculator
Property wizard
DIY vs consulting path.
Consulting
POTA Field Kit
Portable ops + power tools together.
Bundle
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Field power & solar
Size with the power system sizer — battery, panel, and distribution.
Bioenno 12V 9Ah LiFePO₄
Lightweight emcomm battery — pairs with power sizer.
~$85 · Amazon →
ExpertPower 12V 7Ah SLA
Budget sealed lead-acid for go-box and UPS duty.
~$25 · Amazon →
Renogy 100W solar panel
Field-day and backup power — size with solar tool.
~$90 · Amazon →
Renogy 10A charge controller
PWM controller for small panel + SLA/LiFePO₄ bank.
~$25 · Amazon →
Anderson Powerpole kit
30A pairs — standard DC connector for emcomm go-boxes.
~$18 · Amazon →
RIGrunner 4005
Fused 12V distribution — clean go-box wiring.
~$55 · Amazon →