Cen tech battery charger wiring diagram

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Okay, I think I am getting closer to figuring it out. If you guys lead me to the fix before I figure it out, I will make a financial contribution to your site out of pure gratefulness. I am desperate enough to use an online help forum to aide me in getting this fixed. Please understand I am an aircraft mechanic by trade and have a very good grasp on electrical troubleshooting. I have attached a scan of Centech's wiring diagram for the alternator for your reference.

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Thus telling me the fusible links are good. I have tested all the alternator, regulator and starter solenoid's associated wiring for continuity, and it all checks good. As for the starter solenoid, the only fusible link attached to the starter solenoid is routed between the positive (positive) side of the solenoid and the battery buss in the trucks fuse box. I checked the alternator belt and it is tight.

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However as I'm grasping at straws here, I'm currently topping off the battery's charge. I doubt that a (.1) battery voltage difference will result in the inability of the alternator to charge the battery.

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