- My Forums
- Tiger Rant
- LSU Recruiting
- SEC Rant
- Saints Talk
- Pelicans Talk
- More Sports Board
- Fantasy Sports
- Golf Board
- Soccer Board
- O-T Lounge
- Tech Board
- Home/Garden Board
- Outdoor Board
- Health/Fitness Board
- Movie/TV Board
- Book Board
- Music Board
- Political Talk
- Money Talk
- Fark Board
- Gaming Board
- Travel Board
- Food/Drink Board
- Ticket Exchange
- TD Help Board
Customize My Forums- View All Forums
- Show Left Links
- Topic Sort Options
- Trending Topics
- Recent Topics
- Active Topics
Started By
Message
Automatic Charging Relay ( acr) for house battery on bay boat
Posted on 5/8/22 at 7:31 am
Posted on 5/8/22 at 7:31 am
Thinking of wiring in a charging relay and getting the “add-a-battery kit” from Blue Sea Systems. Currently my cranking battery operates the motor, and all other accessories and my trolling batteries are separate. The ACR allows for dual charging of a cranking and a house or accessory battery from the alternator. Anyone running a set up like this? I was also thinking of just paralleling a house battery. Wouldn’t that give me alternator charging as well?
5
Posted on 5/8/22 at 7:35 am to KJS
Do what? Just get a three bank on board charger.
Posted on 5/8/22 at 7:56 am to KJS
I bought one but haven't installed it yet. Never heard a bad thing about the add a battery kit.
Posted on 5/8/22 at 7:59 am to KJS
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.
I have two ACR’s on a three battery set up, works great.
Posted on 5/8/22 at 8:45 am to willynilly
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)
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)
Posted on 5/8/22 at 10:48 am to KJS
I’ve put the three switch two battery BEP cluster on every boat I have/had. You get a house, a starter and a parallel switch with a charging relay that tops off the house battery when you are running. I’ve never once had to charge my batteries unless they sit up for a few months
they also make a three battery cluster.
best money you’ll spend, plus single on/off switches are so much easier to deal with
they also make a three battery cluster.
best money you’ll spend, plus single on/off switches are so much easier to deal with
Posted on 5/8/22 at 11:05 am to KJS
I’ve had the ACR and the add a battery on my Blackjack for about 4 years with no complaints. Running 2 batteries in parallel would put in danger losing both batteries as they will draw down at the same rate. The isolator in the ACR protects you from that although the switch will allow you to combine the two if you want.
Posted on 5/8/22 at 11:07 am to KJS
I use 3 of them on our boat. They work just as intended. Better than just paralleling batteries because it won’t let cranking battery die. It will prioritize it before allowing overflow to house batt. Also gives isolation when starting engine protecting electronics from any drops/spikes when cranking motor .
Posted on 5/8/22 at 11:46 am to CP3
It seems like you and most of the folks in the thread understand what they are and they’ve explained them well. I don’t think there is a downside and they make so much sense when you want to have your sensitive, high dollar electronics separate from your cranking system.
Posted on 5/8/22 at 12:37 pm to bigbuckdj
The other option is to run Aux charging lead from motor to house battery. That depends on if your engine has one though. IMO ACR (or VSR) is much easier and comes out a wash cost wise. This is the last panel I did on quad engine boat. VSR from each motor to house bank to keep it charged. This also allows a 4 bank charger to charge house bank once all 4 starting batteries are topped off. Works flawlessly.
Posted on 5/8/22 at 12:43 pm to CP3
I think my Frontier has that same panel.
Page 1 of 1
Popular
Back to top
Follow TigerDroppings for LSU Football News