Conext ComBox Giving Wrong Battery Output Wattage

a1certifieda1certified Registered Users Posts: 34 ✭✭

Has anyone seen a Conext ComBox give wildly crazy readings for the battery output wattage? All other numbers seem to be reasonable (including wattage INTO the battery when it is being charged), but the output number is ALWAYS crazy. According to this, I would think that it should read 15-16W.


  • mike95490mike95490 Solar Expert Posts: 9,583 ✭✭✭✭✭

    That's a lotta watts !! Hopefully just a display render error

    Powerfab top of pole PV mount | Listeroid 6/1 w/st5 gen head | XW6048 inverter/chgr | Iota 48V/15A charger | Morningstar 60A MPPT | 48V, 800A NiFe Battery (in series)| 15, Evergreen 205w "12V" PV array on pole | Midnight ePanel | Grundfos 10 SO5-9 with 3 wire Franklin Electric motor (1/2hp 240V 1ph ) on a timer for 3 hr noontime run - Runs off PV ||
    || Midnight Classic 200 | 10, Evergreen 200w in a 160VOC array ||
    || VEC1093 12V Charger | Maha C401 aa/aaa Charger | SureSine | Sunsaver MPPT 15A

    gen: ,

  • a1certifieda1certified Registered Users Posts: 34 ✭✭

    In my wildest dreams! The Volts and Amps displayed below the battery graphic seem to be reasonable/correct. But the displayed wattage is obviously way out of the realm of reality. I have put in a support question to Schneider.

  • BB.BB. Super Moderators, Administrators Posts: 32,999 admin

    The first suggestion is to cut all power and do a controlled shutdown of the whole system for five minutes then restart {including disconnect of the data bus and Ethernet cables... If you have power over Ethernet).


    Near San Francisco California: 3.5kWatt Grid Tied Solar power system+small backup genset
  • a1certifieda1certified Registered Users Posts: 34 ✭✭

    I will try this tonight. It's just extremely odd that only one data point is wrong....

  • EstragonEstragon Registered Users Posts: 4,496 ✭✭✭✭✭

    All it takes is one bit in the register in the wrong state. If it's in RAM, a cold reboot may fix.

    Main daytime system ~4kw panels into 2xMNClassic150 370ah 48v bank 2xOutback 3548 inverter 120v + 240v autotransformer
    Night system ~1kw panels into 1xMNClassic150 700ah 12v bank morningstar 300w inverter
  • a1certifieda1certified Registered Users Posts: 34 ✭✭

    Hard reset on the inverter did nothing to the reporting error of the ComBox application. I'm going to see if a firmware update of the inverter will correct this. The ComBox has the latest firmware already (thankfully, I just purchased it!).

    I did discover, however, that I have a faulty charge controller; but that is a subject for another thread! ;-)

  • a1certifieda1certified Registered Users Posts: 34 ✭✭

    Firmware update fixed the reporting issue. Everything looks like it should at this point. Thanks for your thoughts on this.

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