Cell count, capacity, C-rate and pack mass for a runtime target.
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Design a battery pack for your robot. Select a chemistry, specific cell model or custom cell, series/parallel layout, and load power to estimate voltage, capacity, runtime, and pack-level power density.
Common for drones and high-power robotics; high C-rate, sensitive to abuse.
Pick a known 18650 / 21700 / 4680 cell or stay on custom and set specs manually.
Note: This is a first-order estimate. Real-world runtime depends on temperature, aging, voltage drop under load, thermal limits, and discharge cut-off strategy. Always design with margin and follow safety guidelines for your chemistry and specific cell datasheet.
Runtime falls and current rises as load power increases. Use this to sanity-check C-rates and thermal limits at different power levels.