Stinger SGP32 200 AMP Battery Relay Isolator and Relay

Great product

works good so far easy to install

This high current 12V relay was used to add a 2nd battery to my Malibu Response Inboard Skiboat (See attached schematic).A. Wiring and Installation: With the addition of: Heavy Gage Starter Cables, Silicon Diode, White LED, LED Resistor and SPDT Switch; two AGM Sealed LeadAcid 12V Batteries were installed in the battery nook of the boat. The compact LED assembly and Switch was mounted on top of the Relay. The Relay was secured to the battery bulkhead with Stainless Steel screws.B. Operation: The switch provides two operating Modes: 1-Ignition, 2-On.1. The default condition is with the switch set for IGNITION operation. When the boat's ignition is activated via the key, the 12V ignition wire activates the relay and adds the 2nd battery in parallel to the primary. This supplies 12V power when the ignition is turned on for starting and accessories. Both batteries are also in the boat's charging circuit. The LED lights up when the relay is engaged.2. The 'On' switch condition is available to provide power from the 2nd battery continuously. The LED stays active. The 12V source for the Relay Solenoid is the 2nd battery.C. Application Notes:1. The main advantages of using an isolator for the dual battery configuration are:a. A leaky, bad or discharged backup battery cannot drain the primary when the boat is idle.b. On my boat, most of the accessories will drain the battery if the dash switches are left on. If the primary battery is completely discharged, the engine won't start. Switching to the 'On' position will tie in the backup battery and should provide enough power for boat operation.2. I used my older battery as the primary and a new one as the backup (secondary). This ensures that the healthier battery will be available when needed.3. The benefits of this setup are:a. Provides extra starting current for my V8 Chevy Vortec.b. Doubles the number of AmpHours available to run accessories.

Does what it’s supposed to

Everything works great, my initial installation purpose for this install was add a second battery while I fixed a parasitic draw having the second battery isolated from the system to back it up. It will not work that way wired per instructions, it needs too many volts from the ignition source to turn on, it wouldn’t turn on with 10v to allow the charged battery to enter the loop. To be fair this could be remedied with a toggle switch, but now that I’ve fixed the draw I’m changing the application for audio so this won’t be a problem anymore.

I have a couple of deep cycle batteries in my work trailer with a dedicated set of battery cables that travel all the way up to my alternator in my tow vehicle. I wanted to be able to utilize the batteries in the trailer without having to disconnect them from my tow vehicle as leaving them plugged in would run down my starting battery in the tow vehicle. This heavy duty relay did the trick. Wired it so that the relay control circuit is ignition switched, so as soon as I shut down my tow vehicle, this relay automatically disconnects the trailer batteries from my tow vehicle battery. The relay is a bit spendy but well worth the cost for my application. Unit seems well built, hopefully it survives the test of time.

I have had continuous problems with my 2004 Yukon battery dying, as the vehicle sits more than it is used and seems to have a significant power draw from the electronics and aftermarket radio install. GMC and Chevrolet offered a second battery as an option, and the tray is available aftermarket online.I purchased the Stinger SGP32 200 AMP Battery Relay Isolator and Relay, and took it and my backup second battery to Broadway Auto Electric in Lemon Grove for professional installation. Now my Yukon starts very strongly every time, and I don't have to worry about getting stuck at the most inopportune times.The Stinger SGP32 200 AMP Battery Relay Isolator and Relay keeps the second battery out of the phantom draw when the car sits, and uses both batteries to start the car when the ignition switch is turned on.I could have wired it and installed it myself, and if you deal with auto electronics and are familiar with such things this would be a very easy install.I would recommend the Stinger SGP32 200 AMP Battery Relay Isolator and Relay for similar applications.

I was going through Viair PAC 80s about once a month (give or take). Finally decided to give this a try. Been exactly a month, still running great doesn't even get hot at all even after running a normal compressor cycle. PAC 80s would literally melt sometimes. (I use this on a truck with air ride suspension for the compressors.)