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Recent content by P.S.N.

  1. 2025 PowerBoost Drawing Power from Trailer Battery

    More interesting 2025 F150 PowerBoost seven-way behavior. As I was moving my trailer around my property today, I decided to record some more power flow numbers between my truck and trailer via my trailer's shunt. My trailer's LFP was pretty full and it looked like my PB was slowly topping it...
  2. 2025 PowerBoost Drawing Power from Trailer Battery

    I'm sorry that happened to your battery. Reading your post makes me glad I am acquiring a battery tender for my PB (I'm learning from yours and others experiences). It was the PB Facebook group that taught me how I could save gas by not always towing in tow/hall. So not using tow/hall all the...
  3. 2025 PowerBoost Drawing Power from Trailer Battery

    Are you still using your original 12V batteries in your PB? It has become very common for new and some old travel trailers to be outfitted with LFP batteries, so towing one with a PB is not "outside of the norm" anymore, in my opinion. How best to protect things and/or take advantage of this is...
  4. 2025 PowerBoost Drawing Power from Trailer Battery

    All, Check my logic on this, please. I think most of my initial power draw tests captured moments when my PowerBoost was not in its 12V charge cycle until my recent test when I saw a small but positive charge coming from my F150 to my trailer's LFP battery. Reviewing it all, would you agree or...
  5. 2025 PowerBoost Drawing Power from Trailer Battery

    Bash me all you want. I had the opportunity to record behavior in "accessory mode" so I did just to see what happens, not to tell you and others that is how one uses a truck and trailer ("accessory mode" was a learning opportunity only). I love the performance of towing in tow/hall for it...
  6. 2025 PowerBoost Drawing Power from Trailer Battery

    I only use tow/hall when towing in the hills for I like being able to tow in electric mode when possible, of course when costing or maintaining a slow speed. Regardless, one of my initial tests was conducted driving down the highway at 55 MPH in normal mode. Yes, this morning's test (test #6)...
  7. 2025 PowerBoost Drawing Power from Trailer Battery

    I just ran the test for a sixth time this morning with very different results. Before I got started, I let my PB idle to charge the high voltage battery until it turned itself off, just like I did in my other tests. Like before, I turned everything off that I could and recorded a 2W draw from...
  8. 2025 PowerBoost Drawing Power from Trailer Battery

    Another good idea, thanks. No, my trailer's 12V frig was off.
  9. 2025 PowerBoost Drawing Power from Trailer Battery

    Thank you all for taking the time to try and help me. You continue to state that the PB's 12V system, with it's standard batteries, have a higher voltage than the LiFePO4 in my trailer. The only time I can think this would be true is during the truck's charge cycle when the hybrid system fills...
  10. 2025 PowerBoost Drawing Power from Trailer Battery

    Thank you for the response and advise. Being that I have a 2025 PB, I don't know how accurate your first paragraph is about the ICE side 12V system, given it lacks the starter/generator you have with your PB. To your last "Edit:' paragraph, backup camera only gets powered when the marker...
  11. 2025 PowerBoost Drawing Power from Trailer Battery

    That makes sense. Would not my trailer's shunt recording of a negative number be the exact indication of a draw from my F150? It goes in the positive direction when my WFCO converter/charger or my solar is working, so that is convincing me that my shunt is answering the directional question, or...
  12. 2025 PowerBoost Drawing Power from Trailer Battery

    I had forgotten about Snakebitten's response on the starter/generator. Thank you for the reminder. I am still stuck with a known and unwanted draw between my trailer's LiFePO4 and truck, which other forum members seam to deny that it happens with or without saying I'm wrong. So would you...
  13. 2025 PowerBoost Drawing Power from Trailer Battery

    It is from a Victron SmartSolar 100/30 MPPT (https://www.victronenergy.com/solar-charge-controllers/smartsolar-100-30-100-50). Your 2023 PB is slightly different than mine, given you have the belt divine starter/generator and my 2025 PB does not. I am concerned there is a difference in how the...
  14. 2025 PowerBoost Drawing Power from Trailer Battery

    That is good to know about the F150's voltage under load. My LFP can go as high as 14.6V for a full charge, but the manufacturer recommends no more than 14.4V for longevity. The manufacturer also recommends a float charge at 13.6V. Here is an example from my solar MPPT of the manufacturer's...




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