### 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**### 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 RepublicDeWalt 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=12.69Pages: 1· 2