• May 9th Initially the controller default programme is the lowest, so I have now set it to option 4. The nominal voltage then is 14.9v and tested at 15.1 probably due to temp compensation, which has to be set.

    page 9 of manual showing pre-programmed options

    Sept 2020 I transferred Victron Direct USB cable to set up the S6 145s workshop batteries way back, probably in May, but I now have a second unit that will be fitted as and when

  • Javascript calculator for voltage drop through copper wiring/cable

    • Cable length is the single distance from source to load not the sum of the pos. and neg. wires.
    • Use a figure for maximum current as this calculates the maximum voltage drop.

    Select the conductor size in mm2 :   Cable length to the load in metres:

    Supply voltage:   Maximum current draw in amps:

    Load voltage =   Drop as a % of supply Voltage =

     Voltage lost in cable =    Wattage lost in cable =

  • AWG # Diameter
    (mm) Diameter
    (inch) Area
    (mm2)
    0000 (4/0) 11.6840 0.4600 107.2193
    000 (3/0) 10.4049 0.4096 85.0288
    00 (2/0) 9.2658 0.3648 67.4309
    0 (1/0) 8.2515 0.3249 53.4751
    1 7.3481 0.2893 42.4077
    2 6.5437 0.2576 33.6308
    3 5.8273 0.2294 26.6705
    4 5.1894 0.2043 21.1506
    5 4.6213 0.1819 16.7732
    6 4.1154 0.1620 13.3018
    7 3.6649 0.1443 10.5488
    8 3.2636 0.1285 8.3656
    9 2.9064 0.1144 6.6342
    10 2.5882 0.1019 5.2612
    11 2.3048 0.0907 4.1723
    12 2.0525 0.0808 3.3088
    13 1.8278 0.0720 2.6240
    14 1.6277 0.0641 2.0809
    15 1.4495 0.0571 1.6502
    16 1.2908 0.0508 1.3087
    17 1.1495 0.0453 1.0378
    18 1.0237 0.0403 0.8230
    19 0.9116 0.0359 0.6527

  • For a simple connection the best option is a ceramic connector, though there are limited options:~ Either a two or three way block and max cable of 4mm^2 (30A)
    https://www.cef.co.uk/catalogue/categories/junction-boxes-porcelain-connector-blocks


  • Fuses between.
    a) Battery and Inverter 100A
    b) MPPT and battery 60A.
    c) General supply box Max 60A to Fuse box (6 x 15A~25A)

    Get cable for a) 35
    Get cable for b) 25

    Get switch to isolate a)
    Get switch to isolate b)
    Get switch to isolate c)

  • Morning Low ::12.63 | < 12.63 | < 12.39 | < 12.03     Yield :: 900 | 540 | 230 | 100 | 90
    Morning Low is the voltage before any use, maybe before sunrise :)
    Yield is the power used including power via the inverter. ~  I  Indicates Inverter Use (Fridge + +)


    31st August : ML V=12.63   Y=780Wh   I 
    30th August : ML V=12.70Y=860Wh   I 
    29th August : ML V=12.63Y=760Wh   I  12.63 Left router on all night
    28th August : ML V=12.67Y=410Wh   I 
    27th August : ML V=12.67Y=250Wh   I 
    26th August : ML V=12.69Y=690Wh   I 
    25th August : ML V=12.74Y=200Wh   I 
    24th August : ML V=12.66Y=220Wh   I 
    23rd August : ML V=12.66Y=360Wh   I 
    22nd August: ML V=12.70Y=600Wh   I 
    21st August : ML V=12.83Y=380Wh   I 
    20th August : ML V=12.63Y=500Wh   I 
    19th August : ML V=12.83Y=200Wh   I 
    18th August : ML V=12.75Y=560Wh   I 
    17th August : ML V=12.67Y=360Wh   I 
    16th August : ML V=12.64Y=210Wh   I 
    15th August : ML V=12.68Y=210Wh   I 
    14th August : ML V=12.81Y=190Wh   I 
    13th August : ML V=12.84Y=810Wh   I 
    12th August : ML V=12.58Y=1.10KWh   I  ML=12.58 Using computer after 01.00
    11th August : ML V=12.75Y=950Wh   I 
    10th August : ML V=12.70Y=580Wh   I 
    9th August ::: ML V=12.67Y=880Wh   I  ML=12.67 Left computer on all night.
    8th August ::: ML V=12.75Y=950Wh   I 
    7th August ::: ML V=12.82Y=810Wh   I 
    6th August ::: ML V=12.83Y=190Wh   I 
    5th August ::: ML V=12.87Y=250Wh   I 
    4th August ::: ML V=12.70Y=230Wh   I  ML=12.70 Left router on until 3am and computer on all night.
    3rd August ::: ML V=12.74Y=420Wh   I 
    2nd August :: ML V=12.70Y=550Wh   I  ML=12.70 Left computer on all night but it didn't charge??
    1st August ::: ML V=13.03Y=400Wh   I  ML V=13.03 ??