Blowing Maxi Fuse immediately...?
Key Off or On, these wires are always hot if the battery is hooked up.
Current flow for starting sequence illustrated here
Engine Running, current flow normally looks like this.
If the Battery needs charging, then current flow looks like this.
A wire with a fuse can be placed to directly connect the battery to the alternator output.
In that case any charging current will take that route as it is shorter.
Key Off or On, these wires are always hot if the battery is hooked up.
Current flow for starting sequence illustrated here
Engine Running, current flow normally looks like this.
If the Battery needs charging, then current flow looks like this.
A wire with a fuse can be placed to directly connect the battery to the alternator output.
In that case any charging current will take that route as it is shorter.