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Chris Hobson

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Chris Hobson last won the day on December 18 2021

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About Chris Hobson

  • Birthday 09/02/1968

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  • Gender
    Male
  • Location
    Port Elizabeth
  • Interests
    5kVa Mecer/Axpert inverter and 12 250W Yingli panels

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  1. Hi Chris - have an axpert 5kva - have 15x 275w panels with 20x Osaka 102a/h batteries - and just can seem to get the system right. I believe it is the inverter so have ordered another from a different supplier. It seems the inverter I have has the wrong version of firmware. Am running 72.9 and see the latest is 73.0b to stop the inverter switching to grid for no reason. Also what would you recommend for all the battery settings. They are gel and my system is not even 6 months old and with 20 batteries does not even last during the night pulling about max 1000w

    1. Chris Hobson

      Chris Hobson

      You need to be careful. The firmware for the Axpert pf0.8 is different to the Axpert pf1 which is different to the Axpert II.

      Do you have a datasheet for batteries?

      Of greater concern to me than your firmware is how have you wired up 5 strings of batteries so that each string has the same resistance.

    2. Pacmanmb

      Pacmanmb

      Hi Chris, This is where I am running into problems - this is a new installation and seems the installer has no clue what he was doing - all the panels are in series giving me 4125kw power - Batteries are Osaka gel 102ah batteries and have no specs on them at all not even on the battery itself. I have the ICC software from Johan. Maybe some advice on how the batteries are stringed and resistance. Have 5 banks of 4 12v connected to the inverter or your advice would be appreciated. This supplier will not help as he says all is well - but with 20 batteries drawing about 1kw at night - kicks to grid within 6 hours to recharge

    3. Pacmanmb
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