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1. Blue Sea Systems

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Blue Sea Systems SI-ACR Automatc Charging Relay, 12/24V DC / 120A 7610

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Blue Sea Systems #ad - Ignition protected√Ęsafe for installation aboard gasoline powered boats. Protects sensitive electronics by temporary isolation of house loads from engine circuit during engine cranking. Supports high-output alternators up to 120 Amperes. 12/24 volt auto ranging voltage input. Hermetically sealed contacts/vaporproof.
BrandBlue Sea Systems #ad
ManufacturerAcr Electronics #ad
Height9 Inches
Length4 Inches
Weight1.25 Pounds
Width6 Inches
Part Number7610
Model7610

2. IZTOSS

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Iztoss Voltage Sensing Relay VSR 12V 125Amp IP67-Automatic charing relay to avoid dead battery

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IZTOSS #ad - Port for remote led indicating vsr status LED not included, Storage Mode allows zero power consumption when engine is o_x001e_ff. Built-in led indication ON when VSR engages. Automatically combines two batteries when charging and isolates the two batteries when not charging. Robust glass Fiber reinforced Nylon enclosure. No voltage drops comparing to battery isolator diodes 06v, surface or panel mount options provides _x001f_exibility when installing.
BrandIZTOSS #ad
ManufacturerIztoss #ad
Part NumberAP3647

3. 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. 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.

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. 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. If you are not 100% satisfied with your purchase, simply take advantage of the No Questions Asked, 30-Day Money Back Guarantee!! 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.

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. Voltage sensitive relay: the keyline automatic 140 amp dual battery isolator is all you need to charge Two Battery Systems. What could be easier?
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.

4. Acouto

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Acouto Voltage Sensitive Relay Automatic Charging Relay 125A Dual Battery Isolator VSR

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Acouto #ad - Compatibliltydimensions fits heavy duty modular fuse box series bf43x and Battery Switch, matching mainstream products in market. High quality it has a solid glass fiber reinforced nylon shell.

Built-in led indication ON when VSR engages. Led indicationsurface or panel mount options provides flexibility when installing. Suitable for 12v marine, rv, off-Road Vehicles, 12V Auto & Solar Systems. No voltage drops comparing to battery isolator diodes 06v. Ce ip67, excellent water resistance, playing well performance even if your car is in a harsh environment. Operationautomatically combines two batteries when charging and isolates the two batteries when not charging.

Once your main starter battery is sufficiently charged, it will begin charging the second battery too. Vsra voltage sensitive relay vsr is the best way to ensure you can always get your dual-battery vehicle started. Storage mode allows zero power consumption when engine is off.
BrandAcouto #ad
ManufacturerAcouto #ad
Height2.76 Inches
Length2.76 Inches
Width2.76 Inches
Part NumberAcoutobx3pv7tker

5. DZS Elec

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DZS Elec 12V 2 Channel High/Low Level Trigger with Optical Isolation Relay Module Fault Tolerant Design Load AC 0-250V/10A DC 0-30V/10A Circuit Switch Board

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DZS Elec #ad - Input voltage is 12v, the max load of interface is AC 250V/10, DC 30V/10A. With fault tolerant design, even if the control line is broken, humanized terminals, the relay will not take any action. With green power light, red relay status indicator light, can directly reflect the current module working condition. With patch optical isolation, strong drive ability and stable performance, the trigger current is 5mA. Can set high or low level trigger with jumper, to meet the demand of more trigger applications.
BrandDZS Elec #ad
ManufacturerDZS Elec #ad
Part Number12VRE-RB-2C
Model4350280277

6. STINGER

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Stinger SGP32 200 AMP Battery Relay Isolator and Relay

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

7. JayCorp

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12V Dual Battery 140A Smart Isolator VSR Voltage Sensitive Relay for Auto/Boat/RV

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JayCorp #ad - The smart isolator has no voltage drop. Conventional diode isolators incur a minimum of 06 volt drop. No need to bypass existing alternator wiring. Easy to install anywhere - Water and dust resistant - Mounting screws and detailed instructions included. Easy connection at the battery. Compact 2. 68" 68mm by 2. 68" 68mm by 1. 93" 49mm size. 12v 140a smart isolator with cut-In:13. 4v, cut-out:12. 9v.
BrandJayCorp #ad
ManufacturerTrue Amalgamated #ad
Height2 Inches
Length2.5 Inches
Width2.5 Inches
Part NumberVSR12
ModelVSR12

8. DLI

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Enclosed AC/DC Power Relay with Protection & De-Bounce. Screw Terminals. 120V Trigger Input.

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DLI #ad - Safe and easy to install. Includes detachable power cord. Thermal switch and circuit breaker add safety, limiting current to 15 Amps. Controls any AC or DC device. De-bounce circuit for safety. Dry contact relay output - connect to any voltage circuit. Durable high current relay for long life and reliable switching.
BrandDLI #ad
ManufacturerDigital Loggers, Inc #ad
Part NumberAC
ModelAC

9. ONLINE LED STORE

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4 Terminal Relays for Truck Boat Marine, ONLINE LED STORE 12V DC 200 Amp Split Charge Relay Switch

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ONLINE LED STORE #ad - 1/4" studs for Power Input and Output. Perfect for split Charging or Various Automotive Applications. 200a high current Carrying Capacity. Normally open with 60 Ohms Coil Resistance. Heavy duty 12vdc 14v max continuous duty Rated 4-Pin SPST Single Pole Single Throw Relay.
BrandONLINE LED STORE #ad
ManufacturerONLINE LED STORE #ad
Height2 Inches
Length3.25 Inches
Width2 Inches
Part NumberPSZACCEPS141R

10. BATTEK

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Voltage Sensitive Relay Dual Sense 12V 140A Smart Battery Isolator

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BATTEK #ad - Surge protection. Suitable for most 12V charging systems. Dual sensing voltage level of main battery and auxiliary battery, 13. 3v cut in and 12. 8v cut Out. Designed for dual battery systems. Easy to install, self-tapping screws are provided.
BrandBATTEK #ad
ManufacturerBATTEK #ad
Height2.68 Inches
Length2.68 Inches
Weight0.55 Pounds
Width1.93 Inches
Part NumberVSR-SS-12V-140A
ModelVSR-DS-12V-140A