When you start the truck, the charging system brings the cranking battery back to 13.2 volts (full charge), then the isolator closes, the red status light turns on, and the alternator now recharges the auxiliary battery. This separation protects the starting battery while allowing the auxiliary battery to continue to power the auxiliary loads. When the isolator senses the batteries reach 12.7V it opens the solenoid relay to separate the two batteries and turns off the status light. SMART IOSOLATORįor example, you pull the truck in to a jobsite, turn the engine off and leave all the warning lights on. This 200-amp isolator senses the voltage of both main and auxiliary batteries and connects/separates them according to their charge, always protecting the main “cranking” battery. To connect the two batteries properly, we selected a Cole Hersee Smart Battery Isolator (#48530) designed to work with today’s electronic charging systems.
(another AWG2 to the aux battery, double ground wire at the alternator, removed the AWG2 wire from the relay to the fuse block and direct connected the battery wire to the relay (fuse on the battery) and cleaned and flattened all the connections) You may not see the 80A numbers shown above with a stock MB install.The Odyssey is far more receptive to deep discharging and resistant to the hard pounding from off-pavement use than the OEM battery. I went through the system beefing up the wiring. I should mention that when I used the AGM factory aux battery I had a problem of early low voltage inverter shut down due to voltage drop in the wires to the aux battery. The wimpy MB battery wire (AWG 2) is likely limiting the current through the relay.
battery is not involved in the fire, an offensive attack may be mounted. So I regularly see much higher than 40A and so far (couple of years) have not had any problems.Īll that being said, it's not a good idea to design for the max on any component. Fire Loss in the United States 2011, NFPA Fire Analysis and. This is current in and out of the house battery only through the relay since there are no other loads. 1 - AGM Dry Cell Battery 270CCA 1 - Battery Mount 1 - 80 Amp Battery Isolator Relay. This quickly drops to 60A and tapers to 0 depending on house batter state of charge. Boost battery power with UTV Stereos auxiliary battery solution. 130.95 140.95 Here is the 12V True® truck and car battery isolator switch with a voltage-sensitive relay (VSR), allowing you to mount a second (or a third) battery to your car, truck, camper, RV, motorcycle, watercraft, or anything you like. My battery monitor shows -80A of load when the relay turns on after start (house battery charging engine battery) and then +80A once the alternator kicks in. The relay is most highly stressed when it closes or opens under load. The dual battery isolator kit enables your accessories to run from a separate battery while the engine is not running on your vehicle while keeping your main battery charged and your vehicle always ready to go and start when you want it to. I have no idea what the specs on the relay are. And Broussely warns: “Certainly discuss this with your battery manufacturer. If I recall correctly, I believe this is the voltage source for the dash heater motor. Solenoid is only energized when the key is ON. >Float charging Li-ion cells is possible, but the voltage-temperature-lifetime-capacity trade-off is complex. The battery source is the chassis not house battery. Since T-105s gas float (some, less than charging) added a 2nd monitor to disable the cut off relay when 14.2 is reached, no float charging, not a lot if hands on with this loop, learning. With a time factor programmed, if battery voltage is less than 12.1 for 3 minute's, a reset is required, no more high amp loads or it will happen again with less time due to less AH/voltage available. Relay drop out (ignition on) 12.2VDC 12.2VDC. This is a typical mechanical relay that is used for battery isolation and this model is able to handle 200 amps and will isolate two batteries. For battery charging service, relay behavior depends upon revision level and. Use voltage set point, when a load is active the battery voltage is always less than non load. The relay is mounted externally from the battery control center on. I'm using a BMV 700 to prevent the battery voltage from descending thru 12.1 volts, 50% SOC, programmed the BMV to open relay/output, opens an interposing relay that disables all loads from battery's. Do you use a battery monitor to control the cut off relay (relay under seat)? Only Li batt hand's on I have has been held in my hand, phone's etc. I did limited research on the Li batt loop, had some ?s Just went with T-105's 450 AH bank, thinking more plug and play with the MB system, put a shore charger on every so, done.
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