LiPo C Rating Calculator
Convert a LiPo pack’s C rating into its theoretical continuous discharge current.
Battery
Result
Theoretical continuous current
250A
Pack capacity
5.0Ah
Depends entirely on the printed C rating — real capability varies with pack quality and condition.
Formula
- 1.
Capacity (Ah) = Capacity (mAh) / 1000 - 2.
Continuous Current (A) = Capacity (Ah) × C Rating
Worked example
- 1.Inputs: 5000 mAh, 50 C.
- 2.Capacity = 5 Ah; current = 5 × 50 = 250 A theoretical.
Assumptions and limits
- Label C ratings are marketing-optimistic on many packs — treat this as a label-derived ceiling.
- Compare with the ESC rating guide before relying on the figure.
Related tools
Guides and concepts
FAQ
Can I draw the full label current all the time?
No — continuous real capability is usually lower; watch pack temperature.
Assumptions
- The C value comes from the pack label.
- Real continuous discharge varies with cell quality, temperature, aging and test method.