Top 10 Best Isolator

ZERO VOLTAGE DROP Forget the traditional diode relays and so-called solid state devices that can rob you of almost 2 amps of output power The KeyLine Dual Battery Isolator is the only unit designed with cutting edge programming to deliver optimum performance - with ZERO sacrifice. This compact battery isolator was built ultra-small 2.6 x 2.6 x 2 to fit almost anywhere A perfect fit under the hood to get close to your dual batteries.. VOLTAGE SENSITIVE RELAY The KeyLine Automatic 140 Amp Dual Battery Isolator is all you need to charge Two Battery Systems. Voltage Sensitive Relay VSR cuts in at 13.3 volts and cuts out at 12.8 volts to ensure your primary battery is always charged and ready to start your vehicle. It's like having two separate power sources for each battery while only having one alternator. RUGGED DURABILITY Unlike other isolators on the market, the KeyLine Automatic 140 Amp Dual Battery Isolator is IP65 Certified. This International Protection rating means that your KeyLine isolator is safe for use even for your off-road needs in dusty, wet and unexpected extreme weather environments. Great for extreme vibration applications as well.. WHAT YOU GET 1 140 Amp Voltage Sensitive Relay VSR 1 20 ft red battery cable 1 2ft black ground battery cable 2 positive brass marine type battery terminals 1 negative brass marine type battery terminal tinned copper lugs heat shrink cable ties easy-to-follow instructions. Easy-to-follow directions for the most novice DIYer. Power wire in, power wire out. What could be easier. BUY WITH CONFIDENCE Every 140 Amp Dual Battery Isolator is backed by an industry leading 12-month warranty. If you are not 100 satisfied with your purchase, simply take advantage of the No Questions Asked, 30-Day Money Back Guarantee.

500 AMP High Current RelayIsolator. Prevents primary battery discharge. Power on demand. Extends battery life. Universal 12 volt applications.

200 AMP Battery Isolator and Relay. Prevents primary battery discharge. Maximum current transfer. Extends battery life. Universal 12V Applications.

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Easy to Install No alternator or ignition connection needed. If you want additional components to complete installation, please click DEWINNER dual battery isolator kit.. VOLTAGE SENSITIVE RELAY DEWINNER Automatic 140 Amp Dual Battery Isolator is all you need to charge Two Battery Systems. Voltage Sensitive Relay VSR cuts in at 13.3 volts and cuts out at 12.8 volts to ensure your primary battery is always charged and ready to start your vehicle. It's like having two separate power sources for each battery while only having one alternator Only suitable for lead-acid batteries versus lead-acid batteries. FITS A WIDE VARIETY OF VEHICLES -Like Having Two Separate Power Sources,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. Suitable for 12V 4WD, marine, truck, caravan camping applications. WHAT YOU GET SingleIsolator 140 Amp Smart Battery Isolator Easy-to-follow directions for the novice DIYer.. BUY WITH CONFIDENCE Every 140 Amp Dual Battery Isolator is backed by an industry leading 12-month warranty. If you are not 100 satisfied with your purchase, simply take advantage of the No Questions Asked, 30-Day Money Back Guarantee.

Victron Energy Argo FET battery isolators 200-3AC, allow simultaneous charging of three batteries from one alternator, without connecting the batteries together. In contrast with diode battery isolators, FET isolators have virtually no voltage loss. Voltage drop is less than 0,02-Volt at low current and averages 0,1-Volt at higher currents. Discharging the accessory battery for example will not result in also discharging the starter battery. When using ARGO FET Battery Isolators, there is no need to also increase the output voltage of the alternator. Make sure to keep the cable lengths short and of sufficient cross section. Maximum charge current is 200 amp.

RUGGED DURABILITY -This dual battery isolator kit is all you need to charge a dual battery system. It features a voltage sensitive chip ensuring your primary battery is always ready for your vehicle to run. This dual battery isolator is also built to withstand extreme weather environments, vibration and is water resistant.. EASY TO INSTALL - No alternator or ignition connection needed,You don't need any additional components to complete installation as everything is included in the kit, including leads, connectors, screws, zip ties, and more.. VOLTAGE SENSITIVE RELAY - The Automatic 140 Amp Dual Battery Isolator is all you need to charge Two Battery Systems. Voltage Sensitive Relay VSR cuts in at 13.3 volts and cuts out at 12.8 volts to ensure your primary battery is always charged and ready to start your vehicle. It's like having two separate power sources for each battery while only having one alternator. FITS A WIDE VARIETY OF VEHICLES - This Dual Battery Isolator Kit with Printed Installation Instruction Manual Gives You the Power for Your Recreation Without Needing to Worry About Getting Home After.12V, 140A, 13.3V cut-in voltage, 12.8V Cut-out Voltage, Suitable for 12V 4WD, Marine, Truck, Caravan Camping Applications.. BUY WITH CONFIDENCE - Every 140 Amp Dual Battery Isolator is Backed by an Industry Leading 12-month Warranty. If You are Not 100 Satisfied with Your Purchase, Simply Take Advantage of the No Questions Asked, 30-Day Money Back Guarantee..

80 AMP Battery Isolator and Relay. Prevents primary battery discharge.80A constant 150A peak. Maximum current transfer. Extends battery life. Universal 12V Applications.

HIGH QUALITY 200 AMP RELAY 12V - Made of premium metal and coated black surface, 12 volt 200 amp battery isolator can withstand a variety of harsh environments and has better durability. The replacement part number is 586-902 586-105111 586-105111-3 114-1211-020-02 15-550 SBJ4201 and 5122140. POWERFUL FUNCTIONAL CAR AUDIO BATTERY ISOLATOR KIT - Work great without delay. 200 amp battery relay isolator and relay can adapt to cold or hot environment and start fast without delay. And dual battery isolator can continuous power handling of 200-400 amps with 12V at surge power. Doesn't create a voltage drop to your second battery unlike common isolators do. Maximum current transfer, power on demand.. 12V BATTERY RELAY ISOLATOR - battery solenoid isolator 200amp is perfect for any applications with multiple batteries that need to be isolated including Marine, Mobile Audio, Off-Road, Power Sports, RV, Vehicles etc. It is used to isolate the second battery which powering audio, visual navigation, or other equipment.. ELIMINATES BATTERY DRAIN - Normally, when two car batteries are connected in parallel, they are easy to charge and discharge each other. The relay battery isolator stops battery bank from getting power from each one, eliminate that negative effect. Reduce the natural consumption of batteries after power off, lengthens the life of the primary battery.. DIRECT REPLACEMENT AND TIGHTLY FIT IN THE ENGINE COMPARTMENT - Second battery isolator kit produced in accordance with OEM specifications strictly, which is a perfect replacement of worn and rusty relays. And battery isolator kit is convenient for you to install. Connect the two small studs one to ground the other to an ignition on source from fuse box , the order on the large small studs does not matter..

Wide CompatibilityThis battery isolators are small and suitable for almost anywhere, for ATV, UTV, Boats, RV'smarine vehicle, truck, caravan. Working VoltageVoltage Sensitive Relay VSR cuts in at 13.3 volts and cuts out at 12.8 volts to ensure your primary battery is always charged and ready to run your vehicle. FuctionWith the engine running the VSR will engage when the starting battery reaches 13.3 Volts and the LED light will illuminate. This means that both batteries are now linked and the system is working.Once you turn off your vehicle the system will disengage the two batteries as it reaches 12.8 Volts,leaving your main battery safe to start again. Important NoteWhen connecting accessories to your second battery ensure they are fused within 0.98FT. 12-MONTH WarrantyWe have exquisite craft, strict quality control along with excellent after-sales service. That is why our products are worthy of your purchase.