Renogy smart shunt tv#
Use the 20amp Renogy model and jumper the LC side to limit the output to 10 amps which will result in no more than a 15 amp draw on the TV circuit. So the safe bet for those that want a dedicated LiFeP04 charge profile could do the following without worry in using the 7 way for power. I've ran the 20 amp Renogy through my 7 way where I was privy to the drawings so caution needs to be conveyed where changes to trucks can be made all the time. So your alternator will see this demand on the TV battery and will respond. Where the difference comes in like in your 40amp DCDC with dedicated heavy cable is the Renogy is pulling power from the TV battery (as much as 60 amps in your case) and is pushing power to the trailer battery bank. Voltage can vary based on the state of the TV battery and GM will raise overall voltage if the tow haul switch is active. No truck controls the 7 way circuit to varying load which is why most are unhappy with the capability of charging through the 7 way plug. While all these trucks are underway, all connections between the trailer and TV are the same. However, things can change since newer trucks incorporate trailer security systems. Yes the Ford is different where they use a relay where Ram and GM has not used a relay so on the later two applications, the 7 way should be unplugged once stopped for an extended period. Since you've got your signature line figured out I assume you've already seen and read the Welcome Letter (thank you!).
Jim will be along in due time with an input.įirst-noted that was your first post so welcome to Grand Design's (technical) Owners' Forum. Guest is our resident Renogy 20A guru but he has a GM (I'll restrain myself from the obvious comment I could make!) so his truck might be a bit different. (I use the trailer's running lights as the source for the D+ so I can control when the Renogy is working.) I'm guessing "seeing" the trailer battery will be similar, thus the need to apply the D+ signal.
Once the door is closed, power is applied. For example, if the driver's door is open there's no power. My '17 SuperDuty also has conditions that must be met before power is applied through the 7-pin charge wire. Since you've got your signature line figured out I assume you've already seen and read the Welcome Letter (thank you!).įor your question: I do not have an F-150 and my 40A Renogy is configured differently, but I'd expect that once the D+ signal is applied to the Renogy the truck should "see" the trailer battery and provide the charge power. The truck has to "see" the trailer's batteries "through" the Renogy charger.First-noted that was your first post so welcome to Grand Design's (technical) Owners' Forum. If one had a 7 pin battery that stayed hot when the ignition was off, this method would not be advisable. I simply ran a wire from the input + terminal to the "trigger" input (Renogy calls this the "D+ Ignition pin). BTW - I did not run a separate line from the Renogy to the ignition. In any case, the truck did "see" the TT battery system. It did not work at first.but, I found on a F150 forum that one might need to press the brake once to activate the charge circuit in the 7 pin, and that did activate it in a subsequent test. I completed the electrical modifications to the trailer, and tested the Renogy DC-DC charger. Does anyone have this same truck/charger combination, and does it work? I've thought that if it doesn't, I will add a resistor between the input to output, one of sufficiently high resistance to be irrelevant during charging, but to allow the truck to see the trailer's battery voltage. The truck has to "see" the trailer's batteries "through" the Renogy charger.
Renogy smart shunt free#
The trailer wiring connector is free of.The trailer receives power from the vehicle However, these words are in the 2022 F-150 owner's manual: The F-150's circuit for this is fused at 30 amps, so the 20amp charger seems appropriate. I've ordered the WF-8955LIS-MBA switchable converter, and plan to order the Renogy 20amp DC-DC charger. I hope to get the trailer home (it's 60 miles away) sometime in April, depending on road conditions.Īnyway, I will convert it to lithium batteries, 2 each Renogy 100 amp-hr. There is this little problem of the F-150 not being delivered yet.showing 25FEB22 estimated delivery. While we've purchased a 2022 Imagine 2500RL (with solar and 12v refrigerator), we have not brought it home yet.
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