BATTERY POWER LAB · TRANSPARENCY
Technical Sources
Primary documentation, with a clear boundary between the reference and our simplified model.
Reviewed 2026-11-01. A linked source explains the relevant principle; it does not endorse or certify these calculators.
U.S. EIA · Measuring electricity ↗
Watts measure power; watt-hours measure energy. The arithmetic on these tools is derived from those units.
Victron Energy · Battery monitor settings ↗
Charge efficiency and rate-dependent capacity. Our simple runtime model does not implement Peukert compensation.
NREL SAM / PVWatts · System design ↗
Context for solar losses, array ratings and variability. Our peak-sun-hour estimate is a simplified energy balance, not the PVWatts simulation.
Fluke · Power factor and real power ↗
Power factor relates real power in watts to apparent power in VA. We use RMS quantities for single-phase AC.
Power-station specifications
Catalog sources: Jackery Explorer 1000 v2 US; EcoFlow DELTA 3 Classic US; BLUETTI AC180 US. We retain unknown fields as unknown. See the comparison tool for verification notes. Manufacturer specifications may change; confirm the exact regional model before purchasing.