marine dual engine battery isolator relay wiring

MARINE DUAL ENGINE BATTERY ISOLATOR RELAY WIRING HOW TO
MARINE DUAL ENGINE BATTERY ISOLATOR RELAY WIRING INSTALL
MARINE DUAL ENGINE BATTERY ISOLATOR RELAY WIRING MANUAL
MARINE DUAL ENGINE BATTERY ISOLATOR RELAY WIRING FULL

The 1314 will actually combine the batteries at a slightly higher voltage threshold than most other voltage sensing relays/solenoids, so that is to your advantage. Sometimes its best to manually combine the house bank to the alternator after an extended anchor time playing the stereo. If the house battery is heavily depleted, then kinda exceeds the intended use of an ACR anyway. I would also confirm proper operation of ACR with a volt meter.

Lastly, if the boat is put away at the end of the day with a depleted battery and no shore charger is used, then you start the next trip in the hole with a depleted battery. A 10 gallon bucket takes longer to fill then 5 gallon. Also, the total Ah's will need to be factored in. It will not do well at all to recharge a depleted battery thats drawn down by above normal loads such as multiple amp. The job of an alternator is to keep up with NORMAL loads and maintain the batteries charge. I'm probably just going to get rid of the 1314 and keep the system manual.īefore you condemn the Sure Power ACR,, keep in mind that a typical alternator makes for one poor battery charger. The stereo battery constantly dies even after a day where the boat is running almost constantly. I have found, however, that when in 'automatic mode,' the 1314 hardly ever allows the stereo battery to charge.

MARINE DUAL ENGINE BATTERY ISOLATOR RELAY WIRING MANUAL

I did it that way so I could have the option of manual or automatic operation. I did a system last summer that includes a sure power 1314 and a perko switch. In other words, if your stereo battery can reach your starter, your alternator can reach your stereo battery.Īnd if you have the perko set to 'all' in your case, it doesn't matter where your stereo is connected (the common post on the perko switch or the stereo battery) because your stereo battery and your starting battery are wired in parallel at that point and are effectively one big battery. If you don't have access to shore power, I think an isolator setup would be ideal, but I would also want a high output alternator which are typically expensive.Ĭan you draw a diagram of this setup? If you can start your boat from the stereo battery, then the alternator will charge it because in every marine setup I've seen, the positive post on the starter is the common point between the batteries and the alternator. I don't see much use for an isolator with my setup. I use an onboard charger and plug it in when I get home every night. The alternator does not charge the stereo batteries with this setup. It keeps the stereo from draining the starting battery, but still allows me to start the boat with the stereo batteries in the event the starting battery dies. I have my amps wired directly to the stereo battery bank, not the perko. If you do end up buying from ASE call and ask for Ken. I have these in stock as well but am around $60 for the 1314A and about the same on the selector switch. A 1314a for $54 and about $40 for a cole hersee selector switch. Check out ASE Supply in portland's price on these. The sure power 1314 or 1315 isnt' a huge investment either. My favorite setup though would be to use a selector switch in conjunction with a VSR.

MARINE DUAL ENGINE BATTERY ISOLATOR RELAY WIRING HOW TO

I think a perko or blue seas type selector switch or a VSR are both great as long as you know how to use and wire them. I haven't heard of this happening though. You would essentially be back to to a one battery setup. The only way it would leave you high and dry is if somehow the contacts in the realy welded together and the relay never disconnected the batteries. The best part about the VSR is it takes the guess work out of if and seperates the banks automatically so you can spend less time f'ing with a switch and more time relaxing. If you are going to use a VSR like the sure power just make sure you treat it like a stereo bank and a starting bank instead of a primary bank and a backup bank. When the boat is running the batteries will combine and charge together. Basically when you turn the boat off it would be like disconnecting the batteries. Then all you have to do is run a small negative wire to the negative on one of the batteries. Basically you wire the batteries in parallel with the VSR(at least a sure power) inline on the positive side, between the 2 batteries.

MARINE DUAL ENGINE BATTERY ISOLATOR RELAY WIRING INSTALL

A voltage sensing relays isn't really a complicated idea and would be super easy for you to install if you want to keep it the simplest possible.

MARINE DUAL ENGINE BATTERY ISOLATOR RELAY WIRING FULL

They generally cause a voltage drop of 1 volt, meaning your batteries will never see a full 14.4V like they should. I would stay away from an isolator if you are talking about a traditional diode based isolator.

Marine dual engine battery isolator relay wiring