Document that number of cells is usually detected automatically

LibreSolar · Jan 5, 2023 · 87d633e · 87d633e
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diff --git a/app/prj.conf b/app/prj.conf
@@ -34,5 +34,5 @@ CONFIG_THINGSET_STORAGE_DATA_VERSION=2
 # Select cell type for initial configuration: LFP (default), NMC, NMC_HV or LTO
 #CONFIG_CELL_TYPE_???=y
 
-# Change number of cells connected in series (matching 12V battery by default if not set)
+# Manually define number of cells connected in series (only necessary for boards with ISL94202)
 #CONFIG_NUM_CELLS_IN_SERIES=?
diff --git a/docs/src/dev/customization.rst b/docs/src/dev/customization.rst
@@ -34,12 +34,12 @@ the ``prj.conf`` automatically.
 Change battery capacity, cell type and number of cells in series
 """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
 
-By default, the charge controller is configured for LiFePO4 cells (``CONFIG_CELL_TYPE_LFP``).
+By default, the BMS is configured for LiFePO4 cells (``CONFIG_CELL_TYPE_LFP``).
 Possible other pre-defined options are ``CONFIG_BAT_TYPE_NMC``, ``CONFIG_BAT_TYPE_NMC_HV`` and
 ``CONFIG_BAT_TYPE_LTO``.
 
-The number of cells is automatically selected by Kconfig to get 12V nominal voltage. It can also be
-manually specified via ``CONFIG_NUM_CELLS_IN_SERIES``.
+The number of cells only has to be specified via ``CONFIG_NUM_CELLS_IN_SERIES`` for boards with the
+ISL94202 chip. For all other chips it is detected automatically and the setting is ignored.
 
 To compile the firmware with default settings e.g. for a 24V LiFePO4 battery with a nominal capacity
 of 100Ah, add the following to ``prj.conf`` or the board-specific ``.conf`` file: