### 06|June

**Morning Low ::**≥ 12.63 | < 12.63 | < 12.39**Yield ::**≥ 1.54K | ≥ 1.01K | ≥ 610 || ≤ 600 | ≤ 320 | ≤ 160

**25th June**:: ML V=12.64⇖Y=1.25KWh

**24th June**:: ML V=12.71⇖Y=1.10KWh :: No plates showing and topped up with some .6Lt overall.

**23rd June**:: ML V=12.71⇖Y=570Wh :: Check electrolyte

**22nd June**:: ML V=12.66⇖Y=1.78KWh :: Check electrolyte

**21st June**:: ML V=12.65⇖Y=1.63KWh :: Check electrolyte

**20th June**:: ML V=12.67⇖Y=1.14KWh :: Check electrolyte

**19th June**:: ML V=12.67⇖Y=890Wh :: Check electrolyte

**18th June**:: ML V=12.66⇖Y=600Wh :: Check electrolyte

**17th June**:: ML V=12.71⇖Y=1.18KWh :: Check electrolyte

**16th June**:: ML V=12.75⇖Y=820Wh

**15th June**:: ML V=12.48⇖Y=1.47KWh

**14th June**:: ML V=12.69⇖Y=1.31KWh

**13th June**:: ML V=12.70⇖Y=460Wh

**12th June**:: ML V=12.71⇖Y=370Wh

**11th June**:: ML V=12.67⇖Y=410Wh

**10th June**:: ML V=12.67⇖Y=1.04KWh

**9th June**:: ML V=12.69⇖Y=1.24KWh

**8th June**:: ML V=12.51⇖Y=1.26KWh

**7th June**:: ML V=12.62⇖Y=660Wh

**6th June**:: ML V=12.62⇖Y=1.62KWh

**5th June**:: ML V=12.63⇖Y=1.10KWh

**4th June**:: ML V=12.63⇖Y=510Wh

**3rd June**:: ML V=12.64⇖Y=790Wh

**2nd June**:: ML V=12.67⇖Y=690Wh

**1st June**:: ML V=12.70⇖Y=1.52KWh### 05|May

**Morning Low ::**≥ 12.63 | < 12.63 | < 12.39**Yield ::**≥ 1.54K | ≥ 1.01K | ≥ 610 || ≤ 600 | ≤ 320 | ≤ 160

**31st May**:: ML V=12.77 Y=1.23KWh :: Checked electrolyte no uncovered cells and used less than 2 LT

**30th May**:: ML V=12.7?⇖Y=940Wh :: 12.77 Check electrolyte

**29th May**:: ML V=12.70⇖Y=450Wh :: 12.77 Check electrolyte

**28th May**:: ML V=12.77⇖Y=1.33KWh :: 12.77 Check electrolyte

**27th May**:: ML V=12.71⇖Y=1.20KWh :: 12.77 Check electrolyte

**26th May**:: ML V=12.77⇖Y=580Wh :: 12.77 Check electrolyte

**25th May**:: ML V=12.72⇖Y=1.18KWh

**24th May**:: ML V=12.64⇖Y=1.15KWh

**23rd May**:: ML V=12.75⇖Y=1.26KWh

**22nd May**: ML V=12.75⇖Y=490Wh

**21st May**:: ML V=12.74⇖Y=510Wh

**20th May**:: ML V=12.58⇖Y=1.52KWh

**19th May**:: ML V=12.66⇖Y=1.56KWh

**18th May**:: ML V=12.63⇖Y=820Wh

**17th May**:: ML V=12.66⇖Y=720Wh

**16th May**:: ML V=12.64⇖Y=1.59KWh

**15th May**:: ML V=12.62⇖Y=1.90KWh

**14th May**:: ML V=12.64⇖Y=1.93KWh

**13th May**:: ML V=12.66⇖Y=1.94KWh

**12th May**:: ML V=12.59⇖Y=1.69KWh

**11th May**:: ML V=12.57⇖Y=1.64KWh

**10th May**: ML V=12.64⇖Y=1.71KWh

**9th May**:: ML V=12.59⇖Y=1.34KWh

**8th May**:: ML V=12.59⇖Y=1.09KWh

**7th May**:: ML V=12.58⇖Y=1.26KWh

**6th May**:: ML V=12.58⇖Y=1.52KWh

**5th May**:: ML V=12.66⇖Y=1.56KWh

**4th May**:: ML V=12.43⇖Y=1.70KWh

**3rd May**:: ML V=12.60⇖Y=1.07KWh

**2nd May**: ML V=12.39⇖Y=940Wh

**1st May**:: ML V=12.66⇖Y=570Wh### 04|April

**Morning Low ::**≥ 12.63 | < 12.63 | < 12.39**Yield ::**≥ 1.54K | ≥ 1.01K | ≥ 610 || ≤ 600 | ≤ 320 | ≤ 160

**30th April**:: ML V=12.86 Y=870Wh Given ML @ 12.86 checked electrolyte, just caught a few cells used about 2Lt and turned charge down to 15/14

**29th April**:: ML V=12.79⇖Y=780Wh Given ML @ 12.79 better check electrolyte.

NOTE

27th Y = 1770 Use =160 | 28th ML =12.61

28th Y = 710 Use = 60 | 29th ML = 12.79

29th Y =780 Use =50 | 30th ML =12.86

**28th April**:: ML V=12.61⇖Y=710Wh

**27th April**:: ML V=12.64⇖Y=1.77KWh

**26th April**:: ML V=12.79⇖Y=590Wh Given ML @ 12.79 better check electrolyte

**25th April**:: ML V=12.66⇖Y=1.39KWh

**24th April**:: ML V=12.67⇖Y=790Wh

**23rd April**:: ML V=12.71⇖Y=1.20KWh

**22nd April**: ML V=12.63⇖Y=1.58KWh

**21st April**:: ML V=12.64⇖Y=1.90KWh

**20th April**:: ML V=12.67⇖Y=1.87KWh

**19th April**:: ML V=12.64⇖Y=1.85KWh

**18th April**:: ML V=12.65⇖Y=1.68KWh

**17th April**:: ML V=12.64⇖Y=1.34KWh

**16th April**:: ML V=12.41⇖Y=800Wh

**15th April**:: ML V=12.59⇖Y=880Wh

**14th April**:: ML V=12.63⇖Y=820Wh

**13th April**:: ML V=12.64⇖Y=1.01KWh

**12th April**:: ML V=12.83⇖Y=1.21KWh Battery 3 plates were exposed. Reduce charge voltage

100ml average battery cell top up.

**11th April**:: ML V=12.83⇖Y=2.04KWh Given ML @ 12.83 better check electrolyte

**10th April**:: ML V=12.71⇖Y=1.62KWh

**9th April**:: ML V=12.74⇖Y=740Wh

**8th April**:: ML V=12.59⇖Y=1.55KWh Low ML due to fridge being on yesterday !?

**7th April**:: ML V=12.79⇖Y=1.14KWh

**6th April**:: ML V=12.78⇖Y=1.74KWh

**5th April**:: ML V=12.78⇖Y=540Wh

**4th April**:: ML V=12.62⇖Y=920Wh

**3rd April**:: ML V=12.64⇖Y=1.45KWh

**2nd April**: ML V=12.72⇖Y=1.15KWh Only one solar panel connected until 10am GMT

**1st April**:: ML V=12.60⇖Y=1.39KWh Only one solar panel connected today### 03|March

**Morning Low ::**≥ 12.63 | < 12.63 | < 12.39**Yield ::**≥ 1.54K | ≥ 1.01K | ≥ 610 || ≤ 600 | ≤ 320 | ≤ 160

**31st March**:: ML V=12.60 Y=1.92KWh

**30th March**:: ML V=12.64⇖Y=1.73KWh

**29th March**:: ML V=12.54⇖Y=1.87KWh

**28th March**:: ML V=12.58⇖Y=1.79KWh

**27th March**:: ML V=12.64⇖Y=1.90KWh

**26th March**:: ML V=12.59⇖Y=2.02KWh

**25th March**:: ML V=12.51⇖Y=1.73KWh

**24th March**:: ML V=12.50⇖Y=1.75KWh

**23rd March**:: ML V=12.51⇖Y=360Wh

**22nd March**: ML V=12.51⇖Y=600Wh

**21st March**:: ML V=12.52⇖Y=350Wh

**20th March**:: ML V=12.52⇖Y=460Wh

**19th March**:: ML V=12.69⇖Y=1.27KWh

Checked battery electrolyte level and all plates were covered. Added approx 2.2Lt ≈ 90ml per cell

The ML drops : see https://unveiled.info/solect/specific-gravity-1

**18th March**:: ML V=12.78 :: Y=560Wh Given ML of 12.78 will check battery electrolyte level

**17th March**:: ML V=12.51⇖Y=1.32KWh

**16th March**:: ML V=12.58⇖Y=220Wh

**15th March**:: ML V=12.66⇖Y=280Wh

**14th March**:: ML V=12.51⇖Y=460Wh

**13th March**:: ML V=12.39⇖Y=1.36KWh Incubator lamp all night

**12th March**:: ML V=12.44⇖Y=610Wh Incubator lamp all night

**11th March**:: ML V=12.44⇖Y=1.41KWh Incubator lamp all night and day

**10th March**:: ML V=12.43⇖Y=1.21KWh Incubator lamp all night

**9th March**:: ML V=12.47⇖Y=670Wh Incubator lamp all night

**8th March**:: ML V=12.44⇖Y=440Wh Incubator lamp all night

**7th March**:: ML V=12.47⇖Y=1.35KWh Incubator lamp all night

**6th March**:: ML V=12.36⇖Y=430Wh Incubator lamp all night

**5th March**:: ML V=12.48⇖Y=510Wh Incubator lamp all night

**4th March**:: ML V=12.30⇖Y=840Wh Incubator lamp all night

**3rd March**:: ML V=12.48⇖Y=190Wh

**2nd March**:: ML V=12.62⇖Y=460Wh

**1st March**:: ML V=12.50⇖Y=890Wh### Old ELF setup

**2014****Fri 7th**I connected one panel, via the Steca Controller, to one old battery. Used it as load battery and measure a use of 10Ah total.Could see from the Steca the Asus 900 uses 1 amp

**Sat 8th**Since then I have 2 old 50w panels connected via the Steca to one old battery. The other old battery I have topped up with water, which was a bit iffy as it was a sealed battery. The six cells needed about a litre so hardly surprising it/they were almost unrechargeable.That battery as end of day on the 9th was rated as 52% charged, by the next morning is was 48%

**Switched old battery.**Bat I received 25Ah charge via Steca and was at 80% when disconnected.

Connected two old panels and one new REC max charge rate was 4.4 of 6.8 generated? Will fill with water tomorrow.

Bat 2, filled with water 2 week ago, was at 3% charged at connect. It rose to 12% at sunset, 15% by 2100 hours and 18% now at midnight. 19% at 0100 How ??????

At 0900 theSoC reads 23%??? and now at 1200 the sun is up but it is overcast 0.6A charge, 12.8v Soc 25%

**Tue 2nd Dec 1140**Soc 54%

**2015**

**Jan 1st 2015**Soc 61% however the battery seems to be discharging quite rapidly down from 80% two days ago. I should check there are blocking diodes in the each of the two panels.### Hydrometers Intro

I have ended up buying two hydrometers. I first called Plymouth Battery Centre who informed me they had a glass model at £19 which I thought was a bit expensive so when I went to town I thought I'd look around before I took the mile or more walk to Prince Rock.

The Toolshed could get a glass model for £5 and the car shop next door had the same model for £2.99, which I bought. When I went to the Plymouth Battery Centre to buy some red and black covered multi-core cable I decided to buy the hydrometer they had anyway, which cost £14.50 eventually.

The better model from Plymouth battery Centre is the one on the left, although you cannot see the coloured scale. It is supplied by Gordon Equipments under the name DURITE model 0-070-00 ; range 1.15 to 1.40; accuracy 0.01. All parts are individually replaceable.

The difference in readings is notable.

**Concerns regarding the cheapo**- The float diameter is much smaller than the container diameter so the readings are at an angle.
- On the side of the container the float rests, the surface tension of the acid draws the liquid further up the side of both, giving a distorted view.
- The scale is on the small side so not so easy to read.
- And of course there's the idea that the calibration is off.