Differences

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--- electrical:solar:nonessential [2020/01/13 11:20]
frater_secessus [how much surplus current is there?]
+++ electrical:solar:nonessential [2020/01/13 11:22]
frater_secessus [when to run opportunity loads]
@@ Line 21: / Line 21: @@
 Opportunity loads should not be applied during [[electrical:12v:charging|Bulk stage]] since Bulk, by definition, means the battery is taking all the available current.((assuming no charging limit has been configured in the [[electrical:solar:charge_controller|charge controller]]))
-For lead-acid batteries the loads are best applied in Float stage, or once past the beginning of Absorption.
-At the start of Absorption the controller still needs near-Bulk levels of current for charging.  At the end it needs almost no current.  **Halfway through Absorption about half of the system's peak power will be available for loads.**  See the image at the top of the page for an example of how current demand drops in Absorption.
 For [[electrical:12v:deep_cycle_battery#lithium_chemistries|LiFePO4]] set the LVD to Vfloat; there is no actual Absorption stage _per se_ in fractional-C charging. We use these setpoints only because our traditional lead-acid controllers work that way.

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