Differences

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--- electrical:12v:voltage_sag [2022/03/16 13:34]
frater_secessus [Voltage sag]
+++ electrical:12v:voltage_sag [2022/03/16 13:38]
frater_secessus [Voltage sag]
@@ Line 8: / Line 8: @@
 Extreme example:  During heavy charging the controller might see 14v instead of the battery's 13v.  This 14v -> 13v difference is called voltage sag.  A similar thing happens in reverse when consuming power.  The battery might be 12.5v but an inverter running a big load might "see" 11.5v at its own terminals and shut off prematurely.((from the user's point of view)).  It also makes it difficult to assess [[electrical:depth_of_discharge|state of charge]] of lead batteries by voltage.
-Sag presents special challenges when charging [[electrical:12v:drop-in_lifepo4|lithium]] battery banks, since the majority of their usable power found in a **very narrow range** only about 0.5v wide.  Voltage sag when charging with lithium can result in unpredictable/inconsistent charging.
+Sag presents special challenges when charging [[electrical:12v:drop-in_lifepo4|lithium]] battery banks.    Since the majority of lithium's usable power is found in an **extremely narrow voltage range**((about 0.5v wide)) sag can result in wildly unpredictable/inconsistent charging.
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