LIPO RUNTIME & C-RATING
Runtime, energy and minimum safe C-rating from capacity, cell count and current draw
PACK & LOAD
Capacity (mAh)
Cells (S)
Avg current draw (A)
Usable capacity (%)
Runtime
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Energy
—
Nominal voltage
—
Min C-rating
—
—
HOW IT WORKS
RUNTIME
Runtime = (capacity × usable%) ÷ draw. Draining a LiPo flat damages it — 80% usable is a safe working figure, holding ~20% in reserve.
C-RATING
Minimum continuous C = draw ÷ capacity(Ah). Pick a pack rated above this with headroom — ratings are optimistic and packs sag and heat under sustained load.