Update battery.rst (#74)

* Update battery.rst Fix SOC equation * Update battery.rst
gmlc-dispatches · Oct 25, 2021 · 852aff3 · 852aff3
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diff --git a/docs/models/renewables/battery.rst b/docs/models/renewables/battery.rst
@@ -47,7 +47,7 @@ Constraints
 ---------------
 State of charge evolves with electricity in and out flows:
 
-.. math:: SOC_t = SOC_{init} + \eta_c \times \Delta t \times I_t - \frac{\eta_d \times O_t}{\Delta t}
+.. math:: SOC_t = SOC_{init} + \eta_c \times \Delta t \times I_t - \frac{\Delta t \times O_t}{\eta_d}
 
 Energy throughput is accumulated over time: