Expert Answers about 12V Power Accessories

• What's the Rating of the 12V Accessory Circuit on a 7-way Trailer Connector
• Assuming that the 7-way connector on your Savana van is factory installed, the 12-V circuit to the trailer runs through the power distribution panel in the engine compartment, where it's protected by a 30 or 40A fuse. (The owner's manual doesn't specify the fuse rating). The amount of power that the circuit can deliver will be limited by the alternator output, the relatively small gauge wire used in the circuit and the distance away from the battery/alternator. If you have a trailer mounted...
  view full answer...


• Can Vehicle Wiring Harness Be Connected to 12V Accessory Outlet for Power on 2013 Hyundai Santa Fe
• The Curt Vehicle Wiring Harness, # C56184, has a powered converter which isolates all of the power draw to the black power wire. This power wire must be connected directly to the battery in order to safe guard the vehicle's electrical system. When the wiring harness is wired according to the installation instructions, the vehicle's wiring system will not be exposed or put in jeopardy in the event of a short in the trailer's wiring or lighting. If you were to tie into the 12V accessory plug...
  view full answer...


• Does Hopkins 12V Socket With Utility Light HM55125 Have a Power Switch
• The Hopkins 12V Socket w/ Utility Light # HM55125 does indeed feature an on/off switch on the underside of the unit which will allow you to light up the area as you're attempting to plug in your 12V accessory. I've linked you to a video featuring this item.
  view full answer...


• Is There Universal Maximum Output on 12V Pin of 7-Way
• The 12 volt accessory pin on the 7-way of your 2017 Chevy Silverado 2500 should have constant power, though there isn't truly a universal maximum sustained output. If you are using the 7-Function Digital Multimeter # PT89ZR for example, and are getting a consistent reading that is 12 volts or something close then everything is working as intended. There will, of course, be a bit of fluctuation but you should expect a reading that is constantly in the 12 volt range.
  view full answer...


• Should The 12v Accessory Pin On A Trailer 7-Way Plug Always Be Hot
• If the 12v pin is connected to your trailer batteries and there isn't anything in place to prevent power from back feeding then the pin will remain live. If you install a diode # RM-690 in between the trailer battery and 7-way 12v pin it won't be able to back feed past the diode.
  view full answer...


• Will The Furrion 7-Way Vehicle Power Adapter Help Charge The Trailer Battery
• Newer GM trucks like your 2022 Chevy Silverado have PWM wiring, which is essentially sending a pulse of voltage through the line instead of constant power. The 7-Way Vehicle Power Adapter for Furrion RV Observation Camera # FR87PR just has a jumper wire from the 12v accessory pin to the running light circuit for a constant 12v feed. This was designed because cameras systems weren't able to function with pulsing voltage. For this to charge the trailer battery you would need a line running...
  view full answer...


• Does 12-V Accessory on Motorhomes 7-Way Stay Powered Up With Ignition Off
• The answer to your question is 'maybe'. It'll depend on if your 12-V feed to your trailer connector comes directly through the battery or through an ignition keyed source. You can pretty easily determine this using a circuit tester like # PTW2993. Just check the 7-way pin in the 1:00 position with the motorhome ignition off. If it shows power, it's directly wired to the battery. If not, you'll be fine. If you DO find that the 12-V pin stays powered up with the motorhome shut off, you can...
  view full answer...


• Capacity of Trailer Connector 12-Volt Trailer Accessory Circuit On 2011 GMC Savana Van
• I looked at the fuse diagram for your 2011 GMC Savana, and the fuse capacities weren't listed. Typically, that circuit is protected by a 40A fuse, so it'd be safe to say that the 12-V auxiliary circuit that feeds the 7-way trailer connector would be limited to a 40A capacity. This being said, due to the distance between the alternator and the 7-way and the small gauge of the wire feeding that circuit, using that 12-V accessory circuit to run your DC to DC charger wouldn't be very effective. You...
  view full answer...


• How is Performance Tool Hidden Travel Blanket Powered
• Good catch; the Heated Travel Blanket with Built In Timer - 3 Heat Settings - 12-Volt # PT37ZR is only powered from the DC accessory 12 volt outlet in your vehicle, it is not powered by a USB port, and doesn't have that capability. Once it's plugged in it'll keep you super warm though with three different heat settings so you'll be nice and cozy.
  view full answer...


• How to Use a MaxxAir Fan With a Yetti 500 and Bluetti E3ba
• I am not completely sure what parts the Bluetti uses because it is not a product that we carry. But since both use the 12v outlet port, I would rewire the fan to use the male end of the Accessory Plug and Socket Kit # PE53QV. Since both of your power stations use a 12v cigarette outlet port, this would be the easiest route.
  view full answer...


• Amperage Required for Tekonsha Prodigy RF Brake Controller # 90250
• The Curt # C51180 Echo requires a minimum of 12-volts at 15 amps to operate. The 12-volt accessory circuit off the 7-way puts off up to 40 amps, so it will have no problem powering the Echo. I've linked you to a product description video featuring the Curt Echo.
  view full answer...


• Will Trailer Drain Battery If Left Hooked Up To Tow Vehicle Overnight
• Leaving anything hooked up for power will cause a drain on your towing vehicle battery. The 12V accessory line on your trailer connector is designed to maintain a battery on your trailer. You may want to consider installing a battery on your trailer and use a battery charger like part # CTEK56353 to charge the battery when land power is available. This would make sure your towing vehicle battery stays charged when you need it.
  view full answer...


• Powered Awning Replacement Parts
• The only other part you will need if you don't have it already is the Solera Awning Rail Extrusion - Black - 8' Long # LC715217. That will let you connect the Solera 12V XL Power RV Awning - 13' Wide - Extra-Long 9'8" Projection - Black Fade # LCV000334926-362243 fabric to the RV if you do not already have one. And just in case you need to seal anything up you can use Alpha Systems Butyl Tape for RV Weatherproofing - 20' x 1" x 3/16" # AL28FJ. This will be all you need to install this...
  view full answer...


• Will Wiring Two 12 Volt Batteries in Series to Get 24 Volts Harm 12 Volt Accessories
• Yes, wiring two 12 volt batteries in series to get 24 volts could be damaging to 12 volt accessories. Generally speaking you will want to wire your two 12 volt batteries in parallel, and wiring batteries in series is often associated with 6 volt batteries in order to produce 12 volts. For wire you can use Ring Terminals # DW05741-1 and 10 gauge # 10-1-1, which is sold by the foot, to connect your batteries.
  view full answer...


• Using 7-Way Trailer Connector 12-Volt Accessory Circuit to Maintain Battery on Dump Trailer
• If you have read our previous responses regarding the use of the 12-volt accessory circuit from the 7-way, then you know that the circuit can be used to maintain, but not charge a depleted trailer-mounted battery. We typically recommend using a battery charger like the # CTEK56353 CTEK Universal Battery Charger to recharge a depleted battery. The 12-volt accessory circuit should already be fused (or if the 7-way was installed aftermarket, protected by a 40 amp inline circuit breaker like...
  view full answer...


• Continuous 12V in Aux Pin on 7-Pin Round Connector?
• When using the Pollak Heavy-Duty, 7-Pole, Round Pin, Trailer Wiring Connector - Trailer End # PK11700 the key on 12V power depends on the vehicle. Some vehicles will have a keyed 12V power and others will have a constant 12V that runs even when the key isn't present. That 12V power will be on that center Auxiliary power pin. The running light circuit will also technically have 12V keyed power.
  view full answer...


• Will an Extra Power Source Be Needed on Horse Trailer to Add Camera, 12V Fans, and LED Lights
• To ensure that you will be fine after adding the camera and the 12V fans, you will want to verify the amperage draw on the fuse protecting your vehicle's 12V power wire in the towing package. Then you will want to determine the amp draw of the 12V fans and the camera to make sure that they will not exceed the fuse's amp draw. Typically vehicle's have a 40 amp fuse protecting their trailer wiring 12 V power wire. I think you should be fine adding the camera and the fans, but you can...
  view full answer...


• Stability of 12V Output on Progressive Dynamics RV Power Control Center
• What I think you are asking is if the DC output voltage is stable regardless of the battery charger operation. Yes, it is. When you plug in to shore power and the smart charger on the Progressive Dynamics RV Power Control Center with AC/DC Panel and Converter/Smart Charger, # PD4135K begins to apply a charge to your battery bank, that voltage will fluctuate depending on needs of battery bank. However, that will not effect the 12V outlet power side, providing you have stable input from...
  view full answer...


• Is NightMinder FM-003-W LED RV Night Light Powered by 12V DC
• The # FM-003-W NightMinder LED Night Light powered by household A/C current, which is usually 120V. Although we don't have a 12V version, we do have a battery powered motion detector lamp, part # NM-Motion-011 that could serve that purpose by providing illumination if you need to mover around in the middle of the night.
  view full answer...


• Does Bargman 30-78-524 Porch Light Operate on 110V AC Power
• The Bargman # 30-78-524 operates on 12V DC, and won't operate on household 110V. If you have your RV plugged into shore power, the RV's power converter will both charge the house batteries and provide 12V power for interior/exterior lighting such as a porch light like the # 30-78-524 you'd asked about.
  view full answer...