How to Use Diodes to Have Two Batteries Power a Circuit with No Feedback
Updated 08/24/2016 | Published 08/23/2016
Question:
I would like to run a device off both batteries at all times w/o tying them together for other devices unless my battery switch is in the all position would one rm790 accomplish this as in red drawing or do I need two as in black drawing?
asked by: Josh
Expert Reply:
Your black drawing would be how wire up the # RM-790 so that both batteries would be on the same circuit but with feedback prevented on the circuits back to the batteries or having them tied together.
Basically you would use a diode on each battery line. Using one diode for both batteries would only allow one battery to power the circuit at a time.
Product Page this Question was Asked From
Roadmaster Hy-Power Diode - (Qty 1)
- Accessories and Parts
- Flat Tow Wiring Harness
- Diodes
- Roadmaster
more information >
Continue Researching
- Shop: Vehicle Tow Bar Wiring
- Shop: Roadmaster Single Park Light Diode
- Shop: Roadmaster Hy-Power Diode - (Qty 1)
- Video: Roadmaster Comfort Ride Leaf Spring Suspension Kit Installation - 2020 Grand Design Momentum 5W Toy
- Video: MORryde X-Factor Crossmember Installation - 2020 Grand Design Momentum 5W Toy Hauler
- Search Results: diode
- Q&A: Combining Brake and Turn Signals on 2001 Jeep Cherokee
- Shop: MORryde X-Factor Crossmember Adapter Kit for Drop Down Applications
- Q&A: Does 12 Volt Output Circuit of Trailer Wiring Charge Hydrastar Breakaway Battery
- Search Results: morryde xfactor
- Search Results: roadmaster slipper spring
- Search Results: roadmaster comfort ride
- Search Results: tie plate
- Q&A: Why Do Diodes have Two Input Terminals and Only One Output
- Q&A: Are the Roadmaster Hy-Power Diodes Water Tight
- Shop: U-Bolt Plate for 3-1/2" Diameter, Round Trailer Axles with 1-3/4" or 2" Wide Springs
- Shop: Ribbed U-Bolt Plate - 3" Diameter, Round Trailer Axle - 2" Wide Spring - 9/16" Bolts
- Shop: Spring-Eye Bolt with Locknut for Slipper Springs - 3-1/2" Long
- Shop: MORryde X-Factor Crossmember for Standard Frame Hangers
- Video: Checking Out the Roadmaster Hy-Power Diode
- Q&A: Should Bolt Hole On Leaf Spring Hanger Be Larger Than Shackle Bolt
- Q&A: Do the Input Terminals of Roadmaster Diode RM-790 Touch Each Other
- Q&A: Dimensions for MORryde X-Factor Crossmember Adapter Kit for Drop Down Applications
- Video: Let’s Check Out the Roadmaster Hy-Power Diode
- Video: The Low-Down on the Roadmaster Single Park Light Diode
- Video: Mount: Roadmaster Single Park Light Diode on a 2012 Jeep Grand Cherokee
- Video: Hydrastar Electric Over Hydraulic Actuator Kit Installation Guide - 2023 Grand Design Solitude Fifth
- Search Results: trailer hitch
- Article: Trailer Wiring Diagrams
- Shop: Trailer Hitch
on Accessories and Parts
