Energy and renewables
Battery charge time
Simple estimate calculator for charge time from user-provided Ah capacity and charging current.
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Battery C-rate
Simple estimate calculator for C-rate from user-provided current and Ah capacity.
Battery capacity for autonomy
Calculates required load energy, nominal battery energy and Ah capacity for a target autonomy time.
Battery storage energy from voltage and Ah
Estimates storage energy from nominal voltage and amp-hour capacity.
Battery runtime from energy and power
Estimates storage runtime from available energy and load power.
Battery usable energy
Calculates helper usable energy from user-provided nominal energy, depth of discharge, and efficiency.
Current from C-rate
Estimates current from C-rate and battery capacity.