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mathiasotf asked

Orion on alternator without starter battery

Hi everyone !
I am writing to you to know if some people have already connected an isolated Orion tr smart to a vehicle alternator without a starter battery? and if it worked and charged proprely?
I explain the vehicle contains 2 alternators, the second alternator was mounted specifically to take advantage of charging a large auxiliary lithium park (mechanical assembly + belt, no electrical wiring).
The excitation of the alternator is given by the starter battery.
I have a problem concerning the output voltage of the alternator which is 8.7V at no load (belt tightened everything is ok). The wiring is quite classical (+ and - input on + and - alternator). The negatives, alternator housing, are well connected to the truck chassis, R=1 ohm. Then I tried to connect to the input of the Orion and there my multimeter shows me 32 V DC (and the Victron application too)!
I wonder if the alternator has a defect because according to me the alternator is supposed to provide a stable voltage and therefore the Orion should work quite normally. I wanted to know if some people have already done this type of assembly with an isolated Orion on an alternator without starting battery and if it worked.
I would like to specify that this is not the first Orion I have installed.
Thank you all for your help.
Sorry for my english i'm not native.

Lithium Batteryorion-tr smartalternatorstarter battery
2 |3000

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