• 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

    Pages: 1· 2· 3

  • 07|July

    31st July :: ML V=12.75 :: Y=1.46KWh
    30th July :: ML V=12.79 :: Y=590Wh
    29th July :: ML V=12.55 ??? :: Y=500Wh
    28th July :: ML V=12.74 :: Y=1.06KWh
    27th July :: ML V=12.55 ??? :: Y=770Wh
    26th July :: ML V=12.68 :: Y=1.50KWh
    25th July :: ML V=12.64 :: Y=1.48KWh
    24th July :: ML V=12.74 :: Y=1.36KWh
    23rd July :: ML V=12.59 Left computer, router and camera on all night :: Y=890Wh
    22nd July :: ML V=12.64 :: Y=1.47KWh
    21st July :: ML V=12.68 :: Y=1.03KWh
    20th July :: ML V=12.63 :: Y=1.51KWh
    19th July :: ML V=12.72 :: Y=1.74KWh
    18th July :: ML V=12.73 :: Y=510Wh
    17th July :: ML V=12.71 :: Y=640Wh
    16th July :: ML V=12.70 :: Y=720Wh

    Away from 13th to 15
    15th July :: ML V=12.71 :: Y=320Wh
    14th July :: ML V=12.71 :: Y=320Wh
    13th July :: ML V=12.63 :: Y=470Wh

    12th July :: ML V=12.64 :: Y=1.32KWh
    11th July :: ML V=12.70 :: Y=650Wh
    10th July :: ML V=12.52 :: This low morning voltage may be due to running the fridge all day and the charge never reaches 15.** v :: Y=1.32KWh

    9th July :: ML V=12.69 :: This is a low morning voltage given there was no use last night. Compare to 5th and 2nd July :: Y=1.44KWh

    8th July :: ML V=12.59 :: This lower than usual morning voltage may be due to the more gentle charging and will continue such for a while. :: Y=1.56KWh

    7th July :: ML V=12.69 :: Y=1.35KWh Set ABS to 14.95 with no disturbance from a short heavy load that would reset to BULK as I often do

    6th July :: ML V=12.82 :: Y=1.73KWh
    After 44 days, (6 weeks +) Topped up electrolyte with two cells was just showing the plates. Lowered ABS voltage to 14.95. Although I had taken account of the temperature I had not reduced the charging routine much and was disappointed to find some cells verging on damagingly low levels. Should write a bot about charging routine when voltage drops after FLOAT and then rises to below ABS bit stays at 14.65 if ABS at 14.95 or in winter 15.4 and 15.64

    5th July :: ML V=12.91 Little use last night :: Y=1.40KWh
    4th July :: ML V=12.70 :: Y=760Wh
    3rd July :: ML V=12.74 :: Y=1.22KWh
    2nd July :: ML V=12.91 Away for the night. :: Y=840Wh
    1st July :: ML V=12.85 :: Y=930Wh

  • DeWalt Planer

    Bought D26500K for £199.95 to level and match 100mm joist beams
    From D&M Tools, Twickenham. 02088923813 (Lee)
    Made in Czech Republic

    DeWalt 01753 567055 of Stanley Black and Decker

    Email about
    1. Blade setup
    2. No Allen key and not indication of size so I have to fiddle around to find a fit which may not be the best and damage the hexagonal socket shape
    3. Plastic foot bob gets in the way and should have an option to click it horizontal so as not to use, or removable, like the height adjuster.

    Plymouth Tools and Spares 01752 361474, 111 Victoria Hill to dispose of ELU
  • 06|June

    30th June :: ML V=12.87 :: Y=1.76KWh
    29th June :: ML V=12.91 Will add view on this high value, due to lack of use or more likely charging routine. :: Y=1.74KWh
    28th June :: ML V=12.75 :: Y=1.71KWh
    27th June :: ML V=12.70 :: Y=1.63KWh
    26th June :: ML V=12.73 :: Y=1.64KWh
    25th June :: ML V=12.78 :: Y=1.50KWh
    24th June :: ML V=12.83 :: Y=1.81KWh
    23rd June :: ML V=12.74 :: Y=1.82KWh
    22nd June :: ML V=12.70 :: Y=1.79KWh
    21st June :: ML V=12.81 :: Y=1.57KWh
    20th June :: ML V=12.55 :: Y=550Wh
    19th June :: ML V=12.66 :: Y=610Wh
    18th June :: ML V=12.82 :: Y=570Wh
    17th June :: ML V=12.82 :: Y=500Wh
    16th June :: ML V=12.83 :: Y=500Wh
    15th June :: ML V=12.67 :: Y=540Wh
    14th June :: ML V=12.75 :: Y=1.27KWh
    13th June :: ML V=12.79 :: Y=1.23KWh
    12th June :: ML V=12.67 :: Y=1.09KWh
    11th June :: ML V=12.79 No use after sunset :: Y=1.40KWh
    10th June :: ML V=12.63 :: Y=1.45KWh
    9th June :: ML V=12.65 :: Y=1.73KWh
    8th June :: ML V=12.66 :: Y=1.41KWh
    7th June :: ML V=12.67 :: Y=620Wh
    6th June :: ML V=12.69 :: Y=1.26KWh
    5th June :: ML V=12.75 :: Y=780Wh
    4th June :: ML V=12.56 ??? Why so low? Ah! left the camera on all night :: Y=700Wh
    3rd June :: ML V=12.74 :: Y=1.46KWh
    2nd June :: ML V=12.64 :: Y=1.22KWh
    1st June :: ML V=12.63 :: Y=790Wh

  • Batt 3 Diary

    **Feb 5th**
    On charge for 36hours off before that for two days on before that for two days.
    **Feb 10th** Brought back from Gavin's after two days of charge V=12.63
    **Feb 11th** 09:50 On charge at 15V ±but frequent heavy cloud :: Charged all day 1.03Kw/3
    **Feb 12th** 08:52 On charge Abs 15.62
    **Feb 13th** 00:10 V=12.26 :: 09:47 :: No load V=12.51 :: 09:53 On charge V=13.9
    **Feb 14th** 01:00 V=12.78 :: 10:46 :: No load V=12.73 :: 21:00 V=12.69

    Pages: 1· 2