![]() ![]() ![]() A marine battery is a dual purpose battery, and while it says deep cycle on it, a true deep cycle battery is constructed much differently. Starting batteries really degrade badly when discharged below 80% regularly. The diode based isolators, that have large finned heat sinks waste power and drop charging voltages. If you add too much constant load you have to add a second alternator, hence the PTO question. And even with the LED lights don't go wild and put on so many that even with the lower load per light the total exceeds the capacity of the alternator. And you are not going to want to use the lights for only a few minutes.įor brief large loads like the winch, you can rely on the second battery.īut for constant loads like lights being on continuously the alternator has to carry the load, so it would be very wise to minimize that load by using LED lights. If you place enough steady load on the alternator you will burn it out regardless of how big the second battery is, the alternator has to carry the steady load. +1 on what eljefino said "I'd think pretty seriously about LED lighting just to cut the load." You can use a ford starter relay and I'm sure RV stores would have what you want. I'd think pretty seriously about LED lighting just to cut the load. Good luck.ĭo you have a PTO in a place where you could rig up a pulley and alternator? Since the battery is isolated when not running, there is no issue with self drain down from "Battling batteries". ![]() I see no reason for not using a marine starting battery, or even a Optima yellow top. You should size the isolator and relay for 30 amps (420watts), to my reckoning. Shorter interval use (ie, winch) of the full 450 watts should not be an issue. ![]() About 100 watts should keep the normal requirements satisfied, leaving about 125 available for sustained use. For normal use, I would figure about half that, unless you operate it near redline all the time. Your buggy has a output wattage of about 450 watts. but making sure the components are compatable is my concern if im not going to buy a pre fab kit and I am going to buy the parts separately. I have a plenty of experience in this subject when installing lights, winches, stereos, etc and of course and running wires. My Polaris Ranger had a "Polaris kit" that ran a second atv sized battery (same size as the starting battery) however when using offroad lights or pretty much anything that isolator was constantly "clicking" moving power to the second battery. #2 should both batterys be the same size ? I was intending on mounting a oversized marine grade battery under the seat of my machine for all the extra's I will be running. Cleary wont be as high as a car's alternator. that said, how large of a isolator/relay should I be using ? no clue what he power output of the stator on a UTV is. Im going to add a second battery, isolator/relay to my new UTV Kawasaki Teryx. so, Mod's if there is a better place for my question please feel free to move this thread. They can be mounted in any orientation and are immune to harsh shake and vibration found in the vehicle environment.Unfortunately this is the best forum for the question I would think and the second battery will power after market lighting. The Isolator Relays are ignition protected, so they can safely be mounted in a convenient place near the battery. These relays, with their heavy construction, can easily deliver the needed current. In a jump start environment, the relay may have to deliver the full starting current of the engine. To be sure these relays can perform under these harsh conditions, the contacts are protected with a unique antioxidant coating. The relay contacts must close and provide a low resistance without the benefit of any arcing for cleaning. The 200 amp version is not a continuous duty unit and requires an Isolator – diesel controller to prevent it from over-heating when it is used for continuous duty.Ī momentary, dash-mounted switch can also be added to provide a “jump start” for the engine, from the auxiliary battery. It is installed between the two batteries, connecting them together for charging. The Big Boy Battery Isolator Relay #77-90006-120 provides a simple, reliable and cost effective means of isolating two battery systems. The 200 amp Isolator Relay is designed for heavier duty applications. These relays have been designed and are built to meet these demanding conditions. In this application, these relays are required to operate with almost no voltage across their contacts and carry currents ranging from milliamps to hundreds of amps. Specifically designed to be used to isolate two battery systems. Big Boy Battery Isolator Relay #77-90006-120 ![]()
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