diy solar

diy solar

Recent content by Lure

  1. Lure

    LFP and Victron upgrade on 42" sailboat

    I have now finalised the design - high-resolution PDF is here: What has changed: - TBS 300A T-class main fuse - using TBS Battery Protect Relay as main charge/discharge disconnect - TBS positive bus bar for load + chargers - REC ABMS main relay is connected to REC Precharge that does...
  2. Lure

    Some pictures from my boat upgrade

    Sorry for re-opening the old thread, but I have a question regarding the manual disconnect of inverter/charger. Why do you need it (as you already have smart disconnect + override with 7713)? How do you handle pre-charge when manual switch is used?
  3. Lure

    LFP and Victron upgrade on 42" sailboat

    I will first try with current connection of windlass to service battery - with 550Ah and REC BMS I do not expect it to trip the BMS to shutdown the LFP battery. Bowthruster will stay on lead-acid for now, I use it rarely. I might later upgrade to LFP bank also for bow battery and then I could...
  4. Lure

    LFP and Victron upgrade on 42" sailboat

    Bavaria Vision 42, built 2013
  5. Lure

    LFP and Victron upgrade on 42" sailboat

    This project was delayed and updated: - using LiFePo4 cells instead of replacement battery pack - using REC 2Q BMS with precharge and Victron support (CAN) - using Wakespeed WS500 alternator regulator with Victron support (CAN) - using 2x Victron DC-DC 9A chargers for maintenance/charging of...
  6. Lure

    LFP and Victron upgrade on 42" sailboat

    @svagres: I agree regarding windlass. It is hooked to service battery as windlass was basic equipment and bow-thruster was an option that came with own battery. They still hook windlass to service battery. I will probably rewire windlass to bow battery. Solar disconnect: misunderstood it at...
  7. Lure

    LFP and Victron upgrade on 42" sailboat

    Regarding solar disconnect: they are connected with MC4 plugs that can be used as safety disconnect. But will discuss with electrician about standard requirements.
  8. Lure

    SOK battery orientation

    SOK support confirmed that putting on side should be fine also for marine environment.
  9. Lure

    LFP and Victron upgrade on 42" sailboat

    I have a 42" sailboat with 3 lead acid battery banks (starter, bow and house) + 560W solar system. I mainly use the boat without 220V connection (max once a week), with limited engine use (0.5-1 hour / day). Solar currently provides enough charge for my daily use. I currently have temporary...
  10. Lure

    SOK battery orientation

    But I would suspect side mounting could be problematic when a sailboat heels, at least for some time you might get them upside-down (angled).
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