beginner
Discover why inverters consume 20W to 70W just being powered on. Calculate annual tare losses, understand Search/ECO modes, and optimize small DC loads to extend battery life.
intermediate
Master the engineering math of sizing a LiFePO4 battery bank. Calculate usable capacity, continuous discharge C-rates, cell balancing overhead, and temperature derating factors.
advanced
Demystify LiFePO4 Battery Management System (BMS) trip states. Learn why cell runner imbalance trips overvoltage cutoffs and how to safely reset and top-balance locked battery banks.
advanced
Understand motor starting surge, Locked Rotor Amps (LRA), and inductive power factors. Learn how to select low-frequency vs high-frequency inverters for well pumps and mini-splits.
advanced
Understand the irreversible physics of charging LiFePO4 batteries below freezing (0°C). Learn about lithium plating, internal heating pads, and temperature sensor placement.
intermediate
Master MPPT charge controller sizing. Learn how winter temperatures increase solar panel open-circuit voltage (Voc) and how to calculate NEC 690.7 compliance to protect controllers.