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  1. tpenfield

    LiFePO Batteries ???

    For all those following along, here is the wiring change I made to the solar controller so that it would 'see' the starter batteries. Before (did not see the starter batteries) . . After (sees the starter batteries)
  2. tpenfield

    LiFePO Batteries ???

    That's a lot of questions. :LOL: The Xantrex shows the over-voltage warning (Fault #49) The relay shuts of solar charging when the engine is running. (not really needed, but I put it in anyway) I'll see about battery temperature compensation. Not sure if there is an 'off' setting. . ...
  3. tpenfield

    LiFePO Batteries ???

    I've had success with the solar charger . . . even though it has a mind of its own :ROFLMAO: . I got the starter battery issue sorted; just needed to move the FET activation wire over to the solar panel input. Then the controller recognized the starter battery bank. At night the FET's will...
  4. tpenfield

    LiFePO Batteries ???

    Yet another update . . . I switched my attention to the solar charger (EPEver) (the sun has not been out for the past 3 days, so solar charging has been challenging. Anyway, I was able to set the battery type (BATT1) to LFP4. The solar panel voltage is pretty decent even in the clouds. I am...
  5. tpenfield

    LiFePO Batteries ???

    Here is the error message and the explanation from the Troubleshooting Guide. . . This is all fine and dandy, but I cannot find anywhere in the manual that speaks of a 'High Battery Cut Out' setting. I did find a 'Low Battery Cut Out' (LBCO) setting. I am beginning to wonder if the solar...
  6. tpenfield

    LiFePO Batteries ???

    The AGM profile was no better . . . same thing . . . ran for a couple of minutes then the LPF's said overcharge and set the voltage to 12.7. I reset the Xantrex to factory settings and will see if that make any difference.
  7. tpenfield

    LiFePO Batteries ???

    Quick Update . . . The LFP batteries were at 13.3 volts this AM. I turned on AC power and watched the charging. It was at 13.8-14.0 volts for a couple of minutes @ 20 amps in 'Bulk' charging phase. Then the voltage went up to 14.9-15.0 all by itself o_O and the batteries went into protected...
  8. tpenfield

    Surprise My electric car is not charged.

    A word of caution to the group . . . keep the government (and the political commentary that it leads to) out of this discussion, else the thread may be closed. :unsure: Yes, the sea level is rising and the shore line is always moving. What is set in motion will remain so until acted upon by...
  9. tpenfield

    LiFePO Batteries ???

    FWIW - Here is the 'as built' wiring diagram. The purple wires are the lithium-powered positive leads on/from the off-grid panel that I made. I'm seeing the over-charge fault on the Xantrex, which I assume is being magically communicated from the LFP's. When it has the fault, the voltage goes...
  10. tpenfield

    LiFePO Batteries ???

    Thanks guys . . . I'll be taking a fresh look at things in the AM. The fact that the Xantrex unit does not have a lithium setting blows my mind. The stupid ProNautic has one, but it was not a good option (design-wise) to have the ProNautic charge the lithiums. @bruceb58 . . . There is a...
  11. tpenfield

    LiFePO Batteries ???

    I got another over voltage fault . . . so something isn't right. Got to figure out the solar controller stuff and then see where the issue lies.
  12. tpenfield

    LiFePO Batteries ???

    Still waiting for the sun to come out so I can configure/test the solar controller. I think the sun might shine here on Monday. :rolleyes: In other news, I got a 'over voltage' warning on the LFP4 batteries . . . not sure why. They went into "don't do that again" mode for a while, but they...
  13. tpenfield

    LiFePO Batteries ???

    I'm not sure why the chargers have all of these adjustable parameters ??? :unsure: Both the ProNautic and the Xantrex just charge at what ever voltage they want regardless of the settings. :rolleyes:
  14. tpenfield

    LiFePO Batteries ???

    I found the 'Advanced Settings' menu . . . no idea how I did that and probably couldn't do it again if I needed to . . . :ROFLMAO: I adjusted the 'custom' charging parameters as shown below. My understanding is that 'equalization' via the power supply is not something you want enabled. Not...
  15. tpenfield

    LiFePO Batteries ???

    OK- I have been reading through the Xantrex manual . . . my head is starting to hurt 🤪 There is the ability to tailor the custom charging (otherwise why would it be called 'custom'). The charger settings are in an 'Advanced Settings' menu . . . BUT . . . the menu does not normally show on the...
  16. tpenfield

    LiFePO Batteries ???

    Yes, coolers of beer. . . or maybe it will be too hot in there?
  17. tpenfield

    LiFePO Batteries ???

    Here is the charging of the LFP4's after about 90 minutes . . . down to 5.5 amps (total of the 2 LFP4's) . . not sure why the inverter is choosing 14.0 volts to charge, but I guess it is OK.
  18. tpenfield

    LiFePO Batteries ???

    Batteries are installed . . . It works (so far). I spent most of the day cutting the 2/0 cables of the old system to length for the new power system and installing lugs. I usually crimp and then solder the lugs. 2/0 cable and lugs take a lot of solder . . . I had to go buy more. Anyway . ...
  19. tpenfield

    LiFePO Batteries ???

    Too late . . . I spent the day re-purposing the old cables and making them the same length. 😀
  20. tpenfield

    LiFePO Batteries ???

    Morning Update . . . It stopped raining !!! :D and the sun is shining !!! :eek: but only 40˚F :cautious: In departure from my usual approach, I read and followed the preparation instructions for the LFP4 batteries. :ROFLMAO: Charge them separately to at least 13.33 volts resting Mate them...
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