Compare lead-acid, AGM, lithium-ion, LiFePO4, and emerging battery options by complete-system use, maintenance, temperature, usable energy, and safety.
Backup power guides
Choose a portable generator from critical loads, starting demand, a safe outdoor location, connection method, fuel plan, service, and the exact manual.
Compare battery stations, portable generators, solar-plus-storage, and standby systems by critical loads, outage duration, safe connection, and maintenance.
Use a portable generator more safely with CDC and CPSC guidance for outdoor placement, carbon monoxide alarms, electrical connections, weather, and fuel.
Plan backup power for phones, a modem and router, laptops, radios, and other essential electronics using measured loads, runtime estimates, and safe fallbacks.
Learn a solar-sizing method for panels, battery energy, and inverter output using measured loads, seasonal solar data, system losses, and autonomy.