Whichever turns out to be easier from a wiring perspective. So instead of the normal "simplified" version of a 3g install, where you connect a short Yellow w/white wire directly to the output of the alternator, you need to run a longer version of it from the BAT #1 post on the isolator, back to the alternator's I wire.Įither that, or directly to the battery or starter relay. And the diode keeps any power signal from coming back from the batteries cables, to the ALT stud on the isolator, to signal the alternator on just how much current to produce. The isolator is basically just a big diode in a heat-sink to keep it cool. In this case, the #1 (main) battery stud on the isolator would seem to be the easy way. With a standard 3g and an isolator you will need to connect the Yellow w/white "A" wire like Ford did originally, which is directly to the Main battery's power. Should this "I" terminal be exciting the alternator? If so, why isn't it?Īm I going to damage battery one with it hooked up the way it is currently?Īgree with Steve, but you can make yours start charging again, at least for now with a quick extension of the Yellow wire.īut first, is yours an isolator rated for at least 130 amps? If not you might as well get it out of there now and go with Plan-B first. This makes me think with the current set up, I am over charging battery 1 with the jumper wire. With jumper removed it charges 13.5, when I touch it, charging increases to 14 volts. Once I touch the wire just for a second it starts charging. If I disconnect my jumper wire before starting is doesn’t charge. It has 12.5 volts with the jumper wire unhooked. I checked the green/red wire with the engine off with key on. Before dual batteries the charge wire was hooked to the battery so it was always excited. I jumped the battery 1 post with the alternator post on the isolator and it works great. With it hooked up like this, it still needs to be excited. The "I" terminal (green/red wire) is hooked to an ignition source. The S wire is hooked to the black and white wire with the little grey clip (stator). I currently have the A terminal (Yellow wire) jumped to the B+ terminal (charge wire). But I am worried about over charging battery 1 if battery 2 is low. I currently have jumped battery one to the alternator terminal on the isolator and it works great. This system is not exciting my alternator. One for alternator and one for each of the batteries. Now I have a battery isolator with 3 terminals. Before I had dual batteries I had the 4 ga charge cable hooked to my starter solenoid and it had a direct path to battery power. A red top optima for the start battery and all accessories and a yellow top for winch only. Contact us and we will provide details of where to send a defective product.I just installed dual batteries. After the initial 30 days all warranty related issues will be handled by the manufacturer. This warranty does not cover any incidental or consequential damages and is in lieu of all other warranties expressed or implied and no representative or person is authorized to assume for us any other liability in connection with the sale of our products. We agree to repair or replace, at our sole discretion, a defective product if returned to us within 30 days or purchase date and accompanied by proof of purchase This warranty does not extend to any of our products which have been subject to misuse, neglect, accident, incorrect wiring or to use in violation of operating instructions furnished by us, nor extended to any units altered or repaired for warranty defect by anyone other than Boat and RV Accessories. If you have any other questions please e-mail us at Guidelines: All returned items are subject to a 20% restocking fee if not returned in the same condition as originally shipped. Please include a copy of your order in the box. You may use any major carrier to return the item, please provide us with a tracking number to ensure delivery. Any item valued over $100 is recommended to be insured. Units to be returned should be packed carefully. We will charge a 20% restocking fee on items not returned in original condition. Returns must be received within 30 days after authorization approved. Return requests must be made within 30 days of the receipt date. Failure to call before sending return may result in a delay of your refund.Īll returned merchandise must be in the original manufacturer’s packaging including manuals, accessories, cables, etc. In order to return or exchange (under the warranty guidelines described below) all or part of your order, you must contact us at 86. All orders from Boat and RV Accessories may be returned within 30 days from date purchase for a full refund less shipping charges, and a 20% restocking fee if the item is not in its original condition.
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