Recent content by Doin it

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  1. Doin it

    16s BMS advise

    Is it ok-easily possible to use the 2 unit model to only monitor, no protection or balancing for now?
  2. Doin it

    16s BMS advise

    With the chargery that is 2 separate units,, can it be used to only monitor cells and not balance? Later as the cells degrades Id want to balance.
  3. Doin it

    Question ... Dual Coil Limiter cable for GTIL

    I own-use 2 of the 2kw gtil2s. Ive used 2 different types of CTs. The cables he sells do work, although expensive.. he calibrates the CTs with an inline resistor, just recently he started adding a trim pot due to variations from one inverter to another.. I made a set of cables and did not use a...
  4. Doin it

    My Powerwall Project

    Nice score grizwald, Im using 3 of the 2nd gen 60v Chevy volt batteries and so far working great.. Id be interested into here about how u hook up a bms to them. Good luck
  5. Doin it

    Electric vehicle battery

    Ive been using 16s2p volt packs for 2 years.. I really like them.. they were low mileage (below 20,000).. the stay perfectly balanced.. there are inverters that work very well with 16s (60v) Ev packs.. outback, manga, victron, reliable, and a few others. No bars need to be cut. The system can...
  6. Doin it

    Outback charge controller not using all of the arrays volts

    I guess I had to say 150v was voc... I figured that was known.. I have read the data sheets-graphs but it seems like others are avoiding what the graphs-data sheets say. By using array voc-Vmp higher than is needed for the battery, therefor losing efficiency and not getting as much power from...
  7. Doin it

    Outback charge controller not using all of the arrays volts

    Ok at this point I figured everyone reading would know Im referring to 48v nominal and 60v nominal... 60v nominal is the max battery the outback can charge and the best array Vmp for that battery to insure the most optimal-most efficient mpp voltage is achieved for that battery is 80-90v.. yes...
  8. Doin it

    Outback charge controller not using all of the arrays volts

    I guess I cant resist... 90v is not a made up number.. 80v is 30% higher than the 60v battery, string sizing tools recommend an array with a 30% higher voltage than the battery voltage so the battery can be charged and so the optimal voltage to charge the battery can be achieved, that will make...
  9. Doin it

    Outback charge controller not using all of the arrays volts

    How is is bogus.. I didnt make it up.. math is what math is...Id strongly assume this is the same for every 150v inverter, the further u get from the battery voltage the less efficient the controller becomes. Read the graphs it shows this.. also do u see in the one pic where it says the optimal...
  10. Doin it

    Outback charge controller not using all of the arrays volts

    Ik there isnt such a thing in the manual etc.. that doesnt mean it doesnt exist.. it cant be denied the the optimal array vmp for the highest voltage battery (60v) is 90v and that happens to equal 150v... this combined voltage is the most efficient voltage for a 60v battery,,, an array over 90v...
  11. Doin it

    Outback charge controller not using all of the arrays volts

    The pic of my controller was at 10:00am, not peak operating time.. I get closer to 3000w. I did at the first post think more of my losses were coming from the issue Ive described. From red showing me what my panels should produce (1000w) less than 3660, Ive realized that not as much of my...
  12. Doin it

    Outback charge controller not using all of the arrays volts

    These graphs shows more efficiency losses the further the input array voltage gets from the battery voltage. This is why only a voltage high enough to charge your battery should optimally be used for best efficiency.. the optimal voltage for the array to mppt at for a 60v battery is 80v (shown...
  13. Doin it

    Outback charge controller not using all of the arrays volts

    Ofcourse higher volt charge controllers have different internal parts-max voltages that make them efficient using the higher voltages u describe,,, What Im saying about the 150v controller wouldnt apply to higher voltage controllers... every controller has optimal voltages the the controller...
  14. Doin it

    Outback charge controller not using all of the arrays volts

    Yes its just as efficient but that depends on how many voltage over battery voltage your array is. Like using a 120v array for a 24v battery is less efficient than using a 70v array for a 24v battery. Due to everything I said in the last post... I controller cannot be expected to be as efficient...
  15. Doin it

    Outback charge controller not using all of the arrays volts

    This 150v total is roughly the best-optimal combined voltage for the 60v battery....maybe 160v but thats pushing it... nobody can argue that.. anything over is making the controller do more work-more losses.. this is not guess work.. due to the incoming voltage being more than the optimal 30%...
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