Battery cycle life as a function of depth of discharge (DoD) - a simple exponential fit used to budget ESS lifetime in hybrid installations.
Formula
$$ N(DoD) = N_0 \cdot (100/DoD)^{1.3} $$
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $DoD$ | Depth of discharge | % | BMS log |
| $N_0$ | Cycles at 100 % DoD | - | maker data |
Sources
- IEEE 1188 / DNV-RP-0043.