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Can you hook up two Alternators to one Battery without blowing your electrical system?
Garryjack
Theoretically, you could hook up two alternators to one battery without blowing your electrical system, but it would be very costly and not very effective, and yes, it could blow up your electrical system. Due to the way diodes in parallel "auctioneer", which means that only the one with higher voltage will conduct, only one alternator would be supplying current at a time. That would not double the power capacity of the two alternators unless you had a load balancer and, at the level of currents involved, this is not trivial. Also, the electrical system itself is designed for a certain maximum capacity. Attempting to pull more current from the battery, or transfer more current to the load, could well damage things, blow fuses, or even cause a fire. It is better to have two independent systems, with proper distribution of load between them. Besides, the mechanical work to even install two alternators is daunting, and you also have to consider the physical loads on the drive system. The bottom line is no. The entire system is designed for a certain capacity, and making changes to only one part is poor engineering.
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∙ 14y ago
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