Differences

This shows you the differences between two versions of the page.

--- electrical:12v:directcharginglfp [2023/01/10 11:21]
frater_secessus [Isolator charging LiFePO4 banks]
+++ electrical:12v:directcharginglfp [2023/01/10 15:30]
frater_secessus [current demands of DC-DC chargers vs isolators]
@@ Line 161: / Line 161: @@
 This crude and fictional graph illustrates the //general patterns of current demand// on the alternator from both isolators (purple) and DC-DC chargers (green).
-The isolator starts out high at 85A and current starts falling off immediately.  It continues dropping gradually as battery bank voltage comes up to 14.0v at about 30 minutes.((made up timeline))  Current continues to drop but **voltage is held at 14.0v unless the isolator is disabled**.((the green bump at the end is a typo I didn't catch until later -- secessus))
+The isolator starts out high at 85A and current starts falling off immediately.  It reaches a kind of plateau in the "middle 80%", then tapers gradually as battery bank voltage comes up to 14.0v at about 30 minutes.((made up timeline))  Current continues to drop but **voltage is held at 14.0v unless the isolator is disabled**.((the green bump at the end is a typo I didn't catch until later -- secessus))
 The DC-DC holds a steady 60A until the 14.4v setpoint is reached around 50 minutes.  Current drops off steadily until Absorption durations times out at 100 minutes.((or however configured)).  DC-DC drops to float 13.4v and current tapers away.

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