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Old 06-25-2023, 02:59 PM   #11
leegreen
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Join Date: Mar 2022
Location: Surrey BC
Posts: 914
Re: Battery draining

The setup Mr48chev posted will work. My understanding of connecting the voltage sense wire direct to the alternator output as shown in his picture is that it can lead to undercharging the battery. The alternator always senses it's output so it sets the output power to achieve the correct voltage right at the alternator, not the voltage at the battery or elsewhere in the system.

if you have big, thick, short wires between alternator and battery it should not matter as there is little voltage drop, but if you have a longer length, thinner or corroded wire and there is voltage drop between alt and battery the alternator wont maintain battery at correct voltage.

this wire I circled:
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