• 11|November

    30th November :: ML V=12.71 :: Y=950Wh
    29th November :: ML V=12.50 :: Y=290Wh
    28th November :: ML V=12.44 :: Y=40Wh
    27th November :: ML V=12.67 :: Y=80Wh
    26th November :: ML V=12.75 :: Y=990Wh
    25th November :: ML V=12.40 :: Y=490Wh
    24th November :: ML V=12.70 :: Y=80Wh
    23rd November :: ML V=12.82 :: Y=460Wh
    22nd November :: ML V=12.55 :: Y=550Wh
    21st November :: ML V=12.51 :: Y=490Wh
    20th November :: ML V=12.63 :: Y=740Wh
    19th November :: ML V=12.66 :: Y=330Wh
    18th November :: ML V=12.39 :: Y=1.09KWh
    17th November :: ML V=12.52 :: Y=750Wh
    16th November :: ML V=12.71 :: Y=180Wh
    15th November :: ML V=12.64 :: Y=220Wh
    14th November :: ML V=12.66 :: Y=420Wh
    13th November :: ML V=12.79 :: Y=620Wh
    12th November :: ML V=12.79 :: Y=360Wh
    11th November :: ML V=12.83 :: Y=640Wh
    10th November :: ML V=12.26 :: Y=270Wh
    9th November :: ML V=12.86 :: Y==200Wh
    8th November :: ML V=12.66 :: Y=260Wh
    7th November :: ML V=12.66 :: Y=450Wh
    6th November :: ML V=12.87 :: Y=200Wh
    5th November :: ML V=12.85 :: Y=290Wh
    4th November :: ML V=12.87 :: Y=160Wh
    3rd November :: ML V=12.91 :: Y=130Wh
    2nd November :: ML V=12.71 :: Y=410Wh
    1st November :: ML V=12.74 :: Y=1.34KWh

  • Victron MPPT 75|15

    Firmware update: 23rd Nov 2018 Version 1.37
    Serial No. HQ14113V1AZ

    Victron MPPT 75|15
    Victron MPPT 75|15

    Full story »

  • 10|October

    31st October :: ML V=12.77 :: Y=530Wh
    30th October :: ML V=12.67 :: Y=1.25KWh
    29th October :: ML V=12.75 :: Y=1.46KWh
    28th October :: ML V=12.80 :: Y=1.28KWh
    27th October :: ML V=12.83 :: Y=1.24KWh
    26th October :: ML V=12.82 :: Y=1.08KWh
    25th October :: ML V=12.78 :: Y=1.02KWh
    24th October :: ML V=12.47 :: Y=1.26Wh
    23rd October :: ML V=12.67 :: Y=930Wh
    22nd October :: ML V=12.79 :: Y=1.42Wh
    21st October :: ML V=12.67 :: Y=1.03Wh
    20th October :: ML V=12.64 :: Y=1.46KWh

    19th October :: ML V=12.75 :: Y=400Wh
    18th October :: ML V=12.75 :: Y=530Wh
    17th October :: ML V=12.59 :: Y=370Wh

    16th October :: ML V=12.69 :: Y=300Wh
    15th October :: ML V=12.76 :: Y=500Wh
    14th October :: ML V=12.74 :: Y=690Wh
    13th October :: ML V=12.64 :: Y=150Wh
    12th October :: ML V=12.70 :: Y=50Wh
    11th October :: ML V=12.76 :: Y=430Wh
    10th October :: ML V=12.56 :: Y=1.53KWh
    9th October :: ML V=12.73 :: Y=1.26KWh
    8th October :: ML V=12.67 :: Y=310Wh
    7th October :: ML V=12.70 :: Y=1.0KWh
    6th October :: ML V=12.73 :: Y=360Wh
    5th October :: ML V=12.81 :: Y=1.19KWh
    4th October :: ML V=12.57 Router on all night
    3rd October :: ML V=12.73 :: Y=770Wh
    3rd October :: ML V=12.63 :: Y=1.39KWh
    2nd October :: ML V=12.86 :: Y=470Wh
    1st October :: ML V=12.66 :: Y=390Wh

  • 09|September

    30th September :: ML V=12.66 :: Y=480Wh
    29th September :: ML V=12.67 :: Y=1.15KWh
    28th September :: ML V=12.70 :: Y=1.47KWh
    27th September :: ML V=12.83 :: Y=1.30KWh
    26th September :: ML V=12.74 :: Y=1.13KWh
    25th September :: ML V=12.69 :: Y=1.84KWh

    • Was already on Float at 09:30 am GMT so set Float to 15.4v

    24th September :: ML V=12.70 :: Y=1.37KWh

    • 10am GMT Set Float to 16v to equalise but clouds reduced to bulk in 1 min
    • 11:06am GMT Set Float to 16v again
    • 12:45 The max voltage reached was 15.45 which has dropped to 15.38. The drop I can only imagine is due to sulfation being degraded on the basis that sulfation increases the resistance and hence the voltage will be higher with a constant current.
      14:15The max voltage has dropped to 15.2

    23rd September :: ML V=12.51 :: Y=1.29KWh
    22nd September :: ML V=12.58 :: Y=210Wh
    21st September :: ML V=12.58 :: Y=1.44KWh
    20th September :: ML V=12.67 :: Y=110Wh
    19th September :: ML V=12.71 :: Y=440Wh
    18th September :: ML V=12.68 :: Y=430Wh
    17th September :: ML V=12.67 :: Y=420Wh
    16th September :: ML V=12.67 :: Y=200Wh
    15th September :: ML V=12.71 :: Y=410Wh
    14th September :: ML V=12.43 :: Y=630Wh
    13th September :: ML V=12.82 Let router on all night :: Y=1.25KWh
    After 69 days, (10 weeks -) Topped up electrolyte with many cells showing the plates. Maybe this was reason for high morning voltages. Set ABS to 15.14 and Float 13.62

    12th September :: ML V=12.67 Let router on all night :: Y=600Wh
    11th September :: ML V=12.89 :: Y=300Wh
    10th September :: ML V=12.72 :: Y=1.43KWh
    9th September :: ML V=12.91 :: Y=1.41KWh
    8th September :: ML V=12.69 :: Y=560Wh
    7th September :: ML V=12.87 :: Y=1.74KWh
    6th September :: ML V=12.79 :: Y=630Wh
    5th September :: ML V=12.83 :: Y=1.40KWh
    4th September :: ML V=12.85 :: Y=830Wh
    3rd September :: ML V=12.80 After drop to 10.19v when using planer yesterday I thought morning voltage would be low ??? :: Y=1.06KWh
    2nd September :: ML V=12.59 Used planer for 1hr yesterday :: Y=1.21KWh
    1st September :: ML V=12.82 :: Y=510Wh

  • 08|August

    31st August :: ML V=12.83 :: Y=310Wh
    30th August :: ML V=12.83 :: Y=440Wh
    29th August :: ML V=12.83 :: Y=290Wh
    28th August :: ML V=12.85 :: Y=560Wh
    27th August :: ML V=12.86 :: Y=380Wh
    26th August :: ML V=12.88 :: Y=340Wh

    25th August :: ML V=12.62:: Y=1.23KWh
    24th August :: ML V=12.58 :: Y=970Wh
    23rd August :: ML V=12.79 :: Y=1.02KWh

    22nd August :: ML V=12.81 :: Y=540Wh
    21st August :: ML V=12.82 :: Y=440Wh
    20th August :: ML V=12.83 :: Y=480Wh
    19th August :: ML V=12.83 :: Y=460Wh
    18th August :: ML V=12.83 :: Y=350Wh
    17th August :: ML V=12.83 :: Y=360Wh
    16th August :: ML V=12.87 :: Y=340Wh

    15th August :: ML V=12.69 :: Y=760Wh
    14th August :: ML V=12.82 :: Y=780Wh
    13th August :: ML V=12.89 ???? :: Y=1.20KWh
    12th August :: ML V=12.44 On computer at dawn :: Y=770Wh
    11th August :: ML V=12.82 Slept early :: Y=420Wh
    10th August :: ML V=12.87 Away for the night :: Y=1.02KWh
    9th August :: ML V=12.83 Away :: Y=900Wh
    8th August :: ML V=12.79 No load over night as away :: Y=970Wh
    7th August :: ML V=12.79 No load over night as slept early. The diff between 12.79 and 12.82 may be due to being on float at 14.65 rather than Abs at 14.95 meaning 500w less charge?? :: Y=1.17KWh
    6th August :: ML V=12.82 :: Y=1.25KWh
    5th August :: ML V=12.48 Watching movies most of the night :: Y=1.71KWh
    4th August :: ML V=12.75 :: Y=1.71KWh
    3rd August :: ML V=12.75 :: Y=1.50KWh
    2nd August :: ML V=12.81 ??? This high of 12.81 is odd as all load was used the night before. The only other aspect is that the charge was a continuous 14.95 ± due to the consistent but variable cloud :: Y=780Wh See http://unveiled.info/index.php/solect/charging/battery-power-charging?page=3
    1st August :: ML V=12.65 Left computer on all night, screen off :: Y=1.33KWh

  • Battery Power & Charging

    An obvious thought is that a larger battery requires a larger charge. First however it is important to note that apart from common usage applied to AA and AAA batteries, for example, the word means a collection of units working together, as in a battery of guns.

    Battery Cells: Nominal Voltage
    Electrically chargeable cells that are used to form batteries range from a nominal voltage of between 1.2 and 2 volts. AA and AAA are 1.5v, Lithium Ion and Lead Acid are 2v. The common Lead Acid battery, used to start a car, is 12v; comprising six 2 volt cells connected in series (end to end).

    Power Available: Amp Hours x Volts
    Batteries have an amp hour rating which is shown on each battery be it single or a collection of cells. The label may show a value such as [48Ah] in the case of a car battery or [1500mAh](1.5Ah) on a rechargeable Lithium Ion. This figure is a measure of how much charge the battery can release over a given period of time, the most common period is 20 hours called the [20 hour rate]. And unless a battery displays an alternative rate it is assumed it is the 20 hour. So a 48Ah 12v battery has ten times more power than a 48Ah 1.2v.

    The power in a battery is roughly Ah x V and in a 48Ah 12v battery is 576 watts or 0.576Kw. In comparison to mains electricity that is enough power to run a one kilowatt single bar electric fire for just over half an hour or a 50w laptop for just under 12 hours. However power output is not linear to load applied, as the quicker a battery is discharged the less efficient it is, hence the 20 hour rate parameter.

    The 20 hour rate means that it will produce 48Ah at 12v only if the current drawn is constant and by calculation, at a nominal voltage of 12 that would 4 (48/12). It would power a 48 watt (12v x 4a) load for 12 hours and whereas a lighter load of 24w would run for over 24 hours a larger load of 96 watts would not run for 6 hours. The differences in the power obtained from the 20 hour rate in the examples above are not likely to be huge but the rates of discharge can be much greater. For instance some times I may use only 1 watt when running a single LED for reading but 400 watts when using an electric drill.

    The lower the rate of discharge the more efficient the battery is and the less damage that occurs in a complete cycle of charge and discharge thereby extending the number of times that a battery can be recharged, varying from a few hundred to a few thousand.

    Charging > Page 2

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