Super/ultracaps are great when you are just slightly over the line of your draw rate. But if you can charge to at least 15v or 80% of charge or better 15.5v which is 90% they are the cells to beat.īut that requires an alt setup that allows for higher charging voltage, keep in mind that most factory systems can handle up to 15.5v but not all can some are picky. Personally I think the extra degradation of the cell from being under charged makes it less than ideal. Lto in 6s should be charged 15-16.8v but even when charging to 14.4 it has shown gains over lifepo4 cells because you are already into the storage voltage of the lto cell. Lifepo4 work fine but if your alt is charging to 14.4 the cells don't actually come into effect until 13.6v they will help slightly but they are like agm in the fact that they don't really help until voltage drops to their charged voltage. Pretty much you shouldn't mix any lithium with agm or flooded, you can get away with mixing lifepo4 with agm but the agms just drag the system down Put an ampere clamp meter on your system to see how much current it is drawing with the AC & blower fan on high, headlights on, seat heaters on, etc with the system playing bass heavy music, and make sure the alternator is capable of that output level + the vehicle's OEM needs + 20%-30% more. And in fact, adding extra batteries will add an additional load on the alternator because now it has to keep that extra battery(ies) charged as well. Otherwise there is really no benefit to adding extra batteries as long as you have a decent size and quality battery to begin with. If you don't want to repeatedly drain your battery while driving and listening to your system, make sure that you have a large enough alternator to supply all of the vehicle's electrical needs as well as your aftermarket audio system's needs.īut it is also good to have a large capacity main/starting battery with very low ESR along with the appropriate power wiring so that it can easily provide the occasional short transient millisecond bursts of power (current) that the alternator is not capable of producing.īut again, as long as the alternator provides enough current to your car and audio system without significant and repeated voltage drops, adding extra batteries just provides for longer listening sessions without the engine running. NOCO provides a limited one-year warranty on its High-Performance Battery Isolators to the original purchaser based on defective material or workmanship.Extra batteries really only help if you want to play the system for long periods without the engine running.IOW without the alternator to supply voltage and current for the audio system. For alternators 140 ampere or less and accommodates Delcotron Series alternators.The amount of current which flows into each battery is then determined by the battery’s own state of charge (based on voltage regulator settings). This will ensure that the battery you dedicated for starting never gets drained.Ī Battery Isolator will also allow you to simultaneously charge both independent power sources at the same time. This problem is known as multiple battery drain and could leave you with dead batteries.Ī Battery Isolator will prevent current from flowing from one battery to the other and each battery will act as an independent power source. Without a Battery Isolator, a battery with a lower charge will draw power from a battery with a higher charge, until the batteries equalize. Many vehicles have multiple batteries: one dedicated for starting the engine and the other to power accessories. Universal Design-Works with most alternators, including Delcotron Series.Full Current Potential-Full current from either output.Multiple Battery Chemistries-Suitable for Wet, Gel, MF and AGM batteries.
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