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re: Automatic Charging Relay ( acr) for house battery on bay boat

Posted on 5/8/22 at 7:59 am to
Posted by willynilly
Member since Jul 2021
73 posts
Posted on 5/8/22 at 7:59 am to
The Blue Sea system works as intended, just follow the wiring diagram provided with the package.

I have two ACR’s on a three battery set up, works great.
Posted by KJS
Right here
Member since Oct 2010
253 posts
Posted on 5/8/22 at 8:45 am to
Will do, thanks!
Bawpaw we’re talking about sea charging, not land. I have two multi bank charging units while docked. The 3.3 yam alternator puts out about 46 amps. Roughly 10 amps is consumed by the motor and the rest charges your battery while underway depending on the rpm’s your running. Shrimp, radio, nav, power pole and everything else must pull from the starting battery; unless you run a separate “house” battery. To get charging amps to the “ house” battery a voltage sensing relay can be used that isolates while discharging, and combines while charging under way.
(If I understand it correctly)
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