Top 10 Battery Isolator Solenoid – Trailer Brake Controls

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1. Tow Ready


Tow Ready 118665 3 Pole Battery Isolation Solenoid

Tow Ready #ad - Item package weight: 06 pounds. Tow ready 118665 battery Isolator Solenoid;. 12 volt chassis Ground;. 3 pole;.
BrandTow Ready #ad
ManufacturerTow Ready #ad
Height7.9 Inches
Length4.75 Inches
Weight0.76 Pounds
Width2.6 Inches
Part Number118665

2. Cole Hersee


Cole Hersee 24213 12V 200A Continuous Solenoid

Cole Hersee #ad - Coil, ignition and ground terminals, steel 10-32 thread, hex nuts and lock washers included. Housing, plated steel. Superior silver tungsten carbide contacts. Normally open contacts, SPST, one circuit, off - on. Studs, copper 5/16-inch -24 thread, hex nuts and lock washers included.
BrandCole Hersee #ad
ManufacturerCole Hersee #ad
Height3 Inches
Length3.5 Inches
Weight0.8 Pounds
Width2.5 Inches
Part Number24213

3. MaySpare


MaySpare 80-Amp Relay 12V Continuous Duty Solenoid Relay Battery Isolator and Relay White Rodgers High Current Starter Relay 4 Pin SPST

MaySpare #ad - Double batteries isolator control on/off switch; continuous amps: 80, voltage: 12VDC; 100, Surge Max Amps:500, 000 mechanical cycle life. Normally open with attaching Hardware, Copper Contact With Sliver Pins.

The working time could be around continuous four or five hours, stop it and then use it. High current relays are the most reliable and efficient way to add secondary batteries to your system; 100% OEM Match & High Quality, 6 Month Warranty; Full Refund and Exchange. Max switching currecnt could pass 500a at 5ms, 120-105751-6, 120-901s1, and max switching power could be 2000w / replace: white rodgers: 120-105751, 120-107112/ Cummins 3916301 3916302.

Note: it requires constant voltage as but depending on the application. Install:the kit has included 4pcs big 100AMP terminals connected to loading and 4pcs small terminals which connected to original power. 4pcs insulated skin red cap.
BrandMaySpare #ad
ManufacturerMay Spare Parts #ad
Part NumberUS-4t500A

4. Sherco-Auto


500 Amp Heavy Duty Battery Isolator Solenoid & Relay

Sherco-Auto #ad - Keeps primary Starting From Being Drained. Maximum current transfer. Unlike most dual battery isolators, the ib series Does Not Create Any Voltage Drop To The Secondary Battery. A must for Multi Battery Sytems. Prevents primary battery discharge. Extends battery life. Compatible with universal 12V Applications. Isolator type relay solenoid. Great for isolating second battery in boats making It Dedicated Only To The Stereo System. 500 amp heavy duty battery isolator solenoid & Relay - Handles 500 Amps Continuous And 600 Amp Surges.
BrandSherco-Auto #ad
ManufacturerSherco-Auto #ad
Part NumberIB500



Stinger SGP32 200 AMP Battery Relay Isolator and Relay

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

6. KanSmart


12v Battery Disconnect Relay 500A Relay and Isolator, 500 Amp Battery Isolator for Mobile Audio Relay Continuous Battery Isolator

KanSmart #ad - Powerful function - 12v battery isolator can continuously power handling 500 amps at 12V and handling of 700 amps at surge power | Doesn't create a voltage drop to your second battery unlike common isolators do. Eliminates battery drain - normally, eliminating that negative effect | Reducing the natural consumption of batteries after power off, they are easy to charge and discharge each other | The relay battery isolator stops the battery bank from getting power from each one, when two car batteries are connected in parallel, lengthens the life of the primary battery.

One year service - the mobile audio continuous Relay comes with 1 Year Warranty | Any problem please feel free to contact us for a replacement. Battery isolator 500 amp with a maximum current transfer, power on demand.

Battery disconnect relay is used to isolate the second battery which powers audio, visual navigation, Off-Road, Mobile Audio, or other equipment.500 amp battery isolator - perfect for any application with multiple batteries that need to be isolated including Marine, Power Sports, etc. Feature- battery isolator solenoid is made of high-quality materials, excellent performance, and durability. Easy to install and start up immediately.
BrandKanSmart #ad
ManufacturerKanSmart #ad
Part Number80000920-KI



12V 200 Amp Continuous Battery Relay Isolator and Relay High Current Relay for Mobile Audio

A ABIGAIL #ad - Wrie diagramconnect 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. Our aim is to make you satisfy the parts and the service we provide for you.

Service100% satisfaction guarantee, replacement, parts, simply contact customer service for troubleshooting help, If you have any issues with the part, or refund. Parametervoltage: 12vdc/ dimensions: 2-3/8"w x 2-3/8"d x 3-3/4"h/power Handling: Continuous power handling of 200 amps/ Surge Power Handling: 300 amps. High qualitya abigailcontinuous relay and battery isolator is made of solid and weather resistant steel and powder-coated black surface for great durability, 100% OEM Match and Replacement.

Functionan isolator is used to combine two batteries when an alternator is charging engine running and isolate them when not charging engine off so you can still start your vehicle.
BrandA ABIGAIL #ad
ManufacturerA5308C #ad
Part NumberA ABIGAIL



Stinger SGP35 500-AMP Relay and Isolator , Black

STINGER #ad - Extends battery life. Power on demand. Universal 12 volt applications. 500 amp high current Relay/Isolator. Prevents primary battery discharge.
BrandSTINGER #ad
ManufacturerStinger #ad
Height7 Inches
Length7.5 Inches
Weight1.65 Pounds
Width2 Inches
Part NumberSGP35
Warranty1 year

9. gradora


1114538, 3 Terminal Continuous Duty Solenoid Relay 200A Max 12VDC Replacement for Trombetta Winch Marine 24106 SPST Solenoid 70091714, 97240-X, 1114240, 1114241, 934-1215-010-16, 974-1215-10-16

gradora #ad - Widely used in golf carts, snowblower, winches, truck, garden tractor and hydraulic control units. It is already grounded internally. Note: if it is a powered circuit, a 30 amp automatic circuit breaker is recommended; if it is a high output alternator, typically 16/18 Awg, a 5amp fuse is recommended; if 10 Awg wire, an 8 amp with a 50 amp automatic circuit breaker is recommended AWG wire.

Install tip: one side is connected to the battery, the other side is connected to the starter, the smaller screw on the top is only used for switch or key start. Replaces part #: ‎1114240, 70091714, 1114538, 934-1215-010, 97240-x, 1114241, 974-1215-10-16, 934121501016, 934-1215-010-16, 9341215010. The roll is made of 180°c copper wire, and the environmental cover plate is nickel-plated to avoid rusting and Shining.
Brandgradora #ad
ManufacturerGradora #ad
Part Number934-1215-010

10. Install Bay


Install Bay Relay 500 Amp Each- IB500

Install Bay #ad - Allows for longer battery Life And Control Over Which Battery Is Being Used. Durable Weatherproof Construction. Handles 500 Amps Continuous. A must for multi Battery Systems.
BrandInstall Bay #ad
ManufacturerMetra Electronics Corp #ad
Height4 Inches
Length3 Inches
Weight1.65 Pounds
Width3.5 Inches
Part NumberIB500
WarrantyManufactures Warranty