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iBoost+ running very occasionally at night?

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  • 06-04-2022 3:16pm
    #1
    mustang68
    Registered Users Posts: 1,105 ✭✭✭


    I have a solar set up with battery and iBoost, and a few times I've caught it heating the hot tank by a few watts (2->14w) at night for maybe 5 to 10 seconds. I'm not worried about the power consumption as it is minuscule, my question is why? I works as expected the rest of the time.



Comments

  • Options
    #2
    mswomex
    Registered Users Posts: 10 ✭mswomex


    I have noticed the same also but have been unable to determine why. Any thoughts from other contributors?



  • Options
    #3
    spose
    Registered Users Posts: 297 ✭✭spose


    Have found that it tends to happen just after something drawing a load stops. Think its that when the load ends the battery doesnt stop immediately and the iboost sees the export and ramps up to take it. I increased the threshold that the iboost will kick in and it seems to reduce it a lot. At the 100mA default it would happen very regularly, 150mA reduced it a good bit and haven't noticed it at all now at 250mA.



  • Options
    #4
    E30M3
    Registered Users Posts: 312 ✭✭E30M3


    https://www.boards.ie/discussion/comment/119593417#Comment_119593417

    Where / how do you increase the threshold? On the iboost or elsewhere



  • Options
    #5
    spose
    Registered Users Posts: 297 ✭✭spose


    Info and instructions are here…

    https://www.marlec.co.uk/solar-iboost-user-operating/




  • Options
    #6
    bonoman66
    Registered Users Posts: 617 ✭✭✭bonoman66


    https://www.boards.ie/discussion/comment/119593417#Comment_119593417

    +1

    Only recently had an Eddi installed (have DC batteries as well as panels) & had noticed the same thing on 2 occasions at night. On both occasions the Eddi would indicate heating but I wasn't really exporting much (export limit of 150w set up before Eddi is meant to kick in). The common theme was I had just switched off some high load device - like Cooker with Oven,Grill, Hobs on (that was being fed by battery at the time) or maybe Kettle etc.. What you say matches what I think I've been seeing. Thanks for sharing. Always learning



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