Top 10 National Luna Dual Battery Kit – Automotive Replacement Batteries & Accessories

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1. KeyLine Chargers

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KeyLine Chargers 12V 140 Amp Dual Battery Isolator Voltage Sensitive Relay VSR Pro Dual Battery Kit

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KeyLine Chargers #ad - Power wire in, power wire out. 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. 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. Voltage sensitive relay: the keyline automatic 140 amp dual battery isolator is all you need to charge Two Battery Systems. 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.

Buy with confidence: every 140 amp dual battery isolator is backed by an industry leading 12-month warranty. 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. Easy-to-follow directions for the most novice DIYer. What could be easier? Voltage sensitive Relay VSR cuts in at 13.
BrandKeyLine Chargers #ad
ManufacturerKeyLine Chargers #ad
Height2 Inches
Length2.6 Inches
Weight0.5 Pounds
Width2.6 Inches
Part NumberISO-PRO140
ModelISO-PRO140
WarrantyManufacturer warranty for 1 year from date of purchase.

2. WirthCo

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WirthCo 20092 Battery Doctor 125 Amp/150 Amp Battery Isolator

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WirthCo #ad - Over current and surge protected for vehicles with electronic systems. Priority charging for starting battery. Manual override for starting battery. Automatically charges auxiliary battery. Water resistant IP62 - suitable for marine use.
BrandWirthCo #ad
ManufacturerWirthCo #ad
Height2.3 Inches
Length5.1 Inches
Weight0.95 Pounds
Width5.7 Inches
Part Number20092
Model1213.1241
WarrantyN

3. Blue Sea Systems

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AUTO Charge Relay 120A 12/24V

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Blue Sea Systems #ad - 120 amp continuous rating. Designed for 12 or 24 volt systems. 12/24v dc auto ranging voltage input.
BrandBlue Sea Systems #ad
ManufacturerBlue Sea Systems #ad
Height4 Inches
Length9 Inches
Weight1.25 Pounds
Width7 Inches
Part Number7611
Model7611
WarrantyLIMITED WARRANTY

4. AOPEC

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AOPEC Dual Battery Isolator Kit 12V 140Amp Voltage Sensitive Relay Fits for RV Marine ATV UTV

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AOPEC #ad - Primary battery priority charging: prevents primary battery discharge, lengthens the life of the primary battery when your vehicle engine is off. Our portable battery isolator are covered under warranty for 24 months. Ip65 weatherproof: outer plastic-housing and a silicone sealed internallayer, protects your isolator from water, dirt, dust, sand damage.

Efficiency charging: aopec battery isolator can distribute the charger or alternator current effectively between two batteries. Aopec battery isolator connects both batteries during charging and keeps them isolated when discharging. 24-month warranty: high quality physical components and designs inside makesure our battery isolator has stable performance.

Each battery isolator is 100% tested and inspected prior to shipment. We stand behind our products and strive to provide the optimal customer experience. Safety protection: the protective design of this battery isolator sustains surge protection, over voltage protection and over current protection. This significantly reduces the risk of a flat starter battery for example.
BrandAOPEC #ad
ManufacturerAOPEC #ad
Weight4.3 Pounds
Part NumberAOPEC
ModelDBKR12140B-T

5. AA Ignition

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Fits Trucks, Water and Vibration Resistant, ATV, UTV Boats and more, 12 Volt 140 Amp Voltage Sensitive Relay, Complete VSR Double Battery Automatic Charger, Safe, SUV, Dual Battery Isolator Kit

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AA Ignition #ad - This dual battery isolator is also built to withstand extreme weather environments, vibration and is water resistant. If the part ever fails on your truck, ATV, SUV, RV, UTV or Boat simply contact us for a replacement. It features a voltage sensitive chip ensuring your primary battery is always ready for your vehicle to run. 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.

Premium rugged construction - this dual battery isolator kit is all you need to charge a dual battery system. 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. Avoid getting stucked after your recreation by purchasing this dual battery isolator kit from AA Ignition. Lifetime warranty - this 12v 140 amp dual battery isolator kit comes complete with a lifetime warranty.

Complete kit with printed installation manual - this dual battery isolator kit manufactured by AA Ignition is a complete kit which includes the Isolator or Relay, battery Cables, copper lugs, heat shrinks, battery terminals, cable ties and a printed instruction manual. Fits a wide variety of vehicles - being the computer age that it is today, a lot of accessories, tools and gadgets that runs on electricity are essential in our everyday living or hobbies. This dual battery isolator kit features 12 Volt 140 Amp Voltage Sensitive Relay Isolator and includes all the bits and pieces needed for a complete installation.
BrandAA Ignition #ad
ManufacturerAA Ignition #ad
Part NumberGWA449
WarrantyLifetime Warranty

6. All Star Truck Parts

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ALL STAR TRUCK PARTS 12V 140 Amp Dual Battery Isolator, Voltage Sensitive Relay VSR Pro Dual Battery Kit

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All Star Truck Parts #ad - You can use it with your 4WD, keeping your vehicle and battery safe from unexpected surges. No alternator or ignition connection needed. This is indicated by the red light in the top LH corner being illuminated. If you need to isolate your vehicle's starting battery from its auxiliary battery, marine vehicle, truck, or for camping applications.

When the charge voltage reaches 13. 3 volts the voltage Sensitive Relay engages allowing both starting and auxiliary batteries to be charged. The battery isolator is surge protected, caravan, this SCA dual battery isolator kit is an easy to install option. When the engine is started, starting and auxiliary batteries are separated allowing only the starting battery to be charged.

12v, truck, 140a, 13.3v cut-in voltage, suitable for 12V 4WD, marine, 12.8v cut-out voltage, caravan & camping applications. When the engine is stopped and the battery voltage falls below 12. 8 volts the vsr disengages separating the start and auxiliary batteries, at this point the indicator light will be out and the auxiliary battery continues to power any accessories without risk of draining the starting battery.
BrandAll Star Truck Parts #ad
ManufacturerAll Star Truck Parts #ad
Part NumberASTPISO140A

7. HORSMILE

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HORSMILE 12V 140Amp Voltage Sensitive Relay & Wiring Cable Kit, Complete VSR Double Battery Automatic Charger, Upgraded, UTV, ATV, SUV, Fits Trucks, ATV, Boats & More, Dual Battery Isolator Kit

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HORSMILE #ad - 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. If you are not 100% satisfied with your purchase, Simply Take Advantage of the "No Questions Asked, 30-Day Money Back" Guarantee. Buy with confidence - every 140 amp dual battery isolator is backed by an industry leading 12-month Warranty.

Rugged durability -this dual battery isolator kit is all you need to charge a dual battery system. Easy to install - no alternator or ignition connection needed, zip ties, including leads, connectors, screws, You don't need any additional components to complete installation as everything is included in the kit, and more. Voltage sensitive relay - the automatic 140 amp dual battery isolator is all you need to charge Two Battery Systems. 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, 12. 8v cut-out voltage, 140a, suitable for 12V 4WD, 13.3v cut-in voltage, truck, Marine, Caravan & Camping Applications. 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.
BrandHORSMILE #ad
ManufacturerHorsmile #ad
Height2.09 Inches
Length2.64 Inches
Weight3.75 Pounds
Width2.64 Inches
Part NumberSR50669-12C

8. STINGER

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Stinger SGP32 200 AMP Battery Relay Isolator and Relay

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STINGER #ad - Maximum current transfer. 200 amp battery Isolator and Relay. Universal 12V Applications. Extends battery life. Prevents primary battery discharge.
BrandSTINGER #ad
ManufacturerStinger #ad
Height5.9 Inches
Length7.9 Inches
Weight1.4 Pounds
Width2.7 Inches
Part NumberSGP32
ModelSGP32
Warranty1YR Manufacturer Warranty

9. MaySpare

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MaySpare Dual Battery Isolator Kit 12V 140Amp Voltage Sensitive Relay VSR Double Battery Automatic Charger & Wiring Cable Kit

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MaySpare #ad - Compatibility: this battery isolators are small and suitable for almost anywhere, truck, UTV, for ATV, RV's´╝îmarine vehicle, Boats, caravan. Fuction: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.

12v, 140a, 13. 3v cut-in voltage, 12. 8v cut-out voltage, ; package Include All the Bits and Pieces Needed for a Complete Installation. Lifetime warranty :100% high Quality and Enjoy Full Life Warranty, Free Exchange. Working voltage: having voltage sensitive chip, rely cuts in at 13. 3 volts and Cuts out at 12. 8 volts to ensuring primary Battery is Always Ready for Vehicle to Run.
BrandMaySpare #ad
ManufacturerMaySpare #ad
Part NumberUS-Battery kit

10. JDMSPEED

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JDMSPEED New 12V 140A Dual Battery Isolator Kit Replacement For ATV UTV 4WD Rzr RV Car Watercraft Marine

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JDMSPEED #ad - Safe for alternator Outputs up to 120 Amps. Water and dust resistant. Fully automatic and can be installed anywhere with its 2. 5" x 2. 5" x 2" size. Suitable for 12v marine, off-Road Vehicles, rv, 12V Auto & Solar Systems.140 amp voltage sensitive Smart Relay Replacement For Battery Isolation. Please check the Product Description carefully to check if it fits before ordering.
BrandJDMSPEED #ad
ManufacturerJDMSPEED #ad
Part NumberDual Battery Isolator Kit