ANL fuse size for 30A backup alt?
Going to ask the braintrust... In my EFII and Bus Manager setup, I have dual batteries and dual alts - a 60A primary and 30A backup. In the Bus Manager dual Alt setup, the backup alt charged battery 2, primary does not. I have originally put a 35A ANL fuse on the backup alt. But that fuse promptly blew, probably from charging the battery.
So, in this setup, what would be a proper ANL size to allow for the large current flow of battery charging after startup, but still protect everything if the alt does nuts? Iím thinking 40A?
Butler County Airport, KHAO
RV-9A Slider N112SB
Started 1/12/12, Airworthy 6/4/18
Build Time - 6.5yrs
IO-320 w/EFII and Catto 3-blade
Dual G3X Touch (Stein's bankrupted me!)
In Phase 1
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