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--- electrical:solar:charge_controller [2022/05/03 11:09]
frater_secessus [how to choose] removed footnote, inlined the comment
+++ electrical:solar:charge_controller [2022/08/03 19:58]
frater_secessus [positive ground controllers]
@@ Line 185: / Line 185: @@
 Note:  in wind and hydro power applications the output can be sequenced so that LOAD is activated only when batteries are fully charged.  This is called a "dump load" because those power sources need to be able to "dump" excess current to prevent damage to themselves.  Dump loads are not necessary in solar because panels can be open- or short-circuited without damage.
+==== connection order ====
+Solar charge controllers use the battery bank to provide a reference voltage for operation.  For this reason **the battery should always be present when solar panels are connected**.  This suggests a particular order for connection/disconnection/resetting:
+  - disconnect solar panels
+  - disconnect battery
+  - wait a moment
+  - connect battery, wait for controller to power on
+  - connect solar panels

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