### 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

### 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.

**14:15**The 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**