Differences

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

--- electrical:12v:directcharginglfp [2022/10/12 18:33]
frater_secessus [analysis of van-relevant installs]
+++ electrical:12v:directcharginglfp [2022/10/28 10:44]
frater_secessus [assessing your own setup for direct alternator charging] vehicle loads
@@ Line 200: / Line 200: @@
   - Read and understand your Li battery manufacturer's charging specs - undercharging is fine((assuming one stays above 20% State of Charge)); overcharging is less so but is relatively rare in an isolator context.
   - Read and understand your alternator's specs
+  - measure how much current from the alternator your vehicle requires to run its own loads.  Since alternators can, //while driving//, run continuous current ~1/2 of their rating this means the bank can use (ALTERNATOR RATING / 2) - VEHICLE LOADS.  If your bank wants to pull more than that an appropriately-sized DC-DC may be required.
   - Read and understand your isolator's specs and functionality
   - observe your vehicle's chassis voltage during normal operation - note that the voltage //at the battery's location// will likely be lower due to long wiring and also lower when the wiring is carrying a hefty charging current.

RV and vandwellers wiki