Examples
Examples
Try the starting example
- Charge coordinates along voltage curve (Ah)
- 0,10,20,30,40,50
- Terminal voltages at coordinates (V)
- 3,3.4,3.6,3.7,3.8,4.1
- Lower usable charge coordinate (Ah)
- 10
- Upper usable charge coordinate (Ah)
- 40
- Usable integrated energy (Wh)
- 109
- Usable charge (Ah)
- 30
- Mean voltage in usable window (V)
- 3.633333
Try another scenario
- Charge coordinates along voltage curve (Ah)
- [0, 11, 20, 30, 40, 50]
- Terminal voltages at coordinates (V)
- [3, 3.4, 3.6, 3.7, 3.8, 4.1]
- Lower usable charge coordinate (Ah)
- 10
- Upper usable charge coordinate (Ah)
- 40
- Usable integrated energy (Wh)
- 108.881818
- Usable charge (Ah)
- 30
- Mean voltage in usable window (V)
- 3.629394
Calculation method
Calculation method
Usable integrated energy (Wh)
Integrate piecewise-linear terminal-voltage-versus-Ah curve over selected usable charge window; result is Wh, not voltage×percent shortcut.
Usable charge (Ah)
Integrate piecewise-linear terminal-voltage-versus-Ah curve over selected usable charge window; result is Wh, not voltage×percent shortcut.
Mean voltage in usable window (V)
Integrate piecewise-linear terminal-voltage-versus-Ah curve over selected usable charge window; result is Wh, not voltage×percent shortcut.
Symbols and units
- a
- Charge coordinates along voltage curve (Ah)
- b
- Terminal voltages at coordinates (V)
- c
- Lower usable charge coordinate (Ah)
- d
- Upper usable charge coordinate (Ah)
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions & limits
Assumptions & limits
- User-supplied measurements and assumptions; Integrate piecewise-linear terminal-voltage-versus-Ah curve over selected usable charge window; result is Wh, not voltage×percent shortcut. Supported limits: Finite numeric values bounded to 1e9 magnitude; lists and tables contain 1–100 records unless a stricter bound is stated. Inputs use the units shown. Lists explicitly paired by a method must have matching lengths; independent polynomial coefficient vectors may differ. Respect stated physical, interpolation, policy and computational domain limits.
Are these inputs private?
These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.