| scope of delivery 85W solar set
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After You have taken out the foldable 20 Watt photovoltaic of the box, You find below: Left top: control unit with 66 W lithium-ion battery, middle top: 12V LED lamp.
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| Charge solar set by a notebook power supply
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The 85W solar set can be charged by any notebook power supply as far as the plug fits and the power supply can deliver 60 W.
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| Solar charger for camera batteries
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Most chargers for batteries from video- and digital cameras can be used with 12V. At the 12 V output of the solar set is a car-socket.
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| Efficiency of AA battery charger
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At calculating the energy usage, it's easy to look over the efficiency of diffeeren processes. Or who would have thought, that this AA battery charger just needs 10 W?
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| Solar set with 19V outlet for notebooks
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The 19V outlet of the photovoltaic set for notebooks increases the efficiency versus a 12V outlet and a car adapter for the notebook.
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| Test with Belkin 40 W 12V DC 100-240 AC power supply
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The Belkin F5L065 is speciall for netbooks and economical notebooks like my mein ASUS UL30A.
Here the conversion loses compared to the direct 19V outlet.
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| Test with Vanson 70W car adapter
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The Vanson SDR-70W is designed for normal notebooks with a higher electric power demand. Compard to the direct 19V outlet of the solar set.
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| 20 W foldable photovoltaic
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It's July 4th 2012, the photovoltaic is full in sunshine, but 13.47 V times 0.86 A are only 11,58 Watt. Not optimal oriented towards the sun, a little bit warmer.
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| 34 W foldable photovoltaic
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The 85 W control unit stands more than a single 20 W modul. Here I connect my foldable 34 W Unisolar from 2005 and the new foldable 20 W foldable from the solar set together.
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| Battery full shows MPPT procedure
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There had been just 13.86 V and 2.27 A. Suddenly, the display changes to 17.49 V and 1.13 A gives 19,67 Watt. This change is the proof for the MPPT procedure.
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| Length of cable is not enough
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The distance between a place in the shadow to work and a sunny place for the photovoltaic to deliver electric power can be larger than thought.
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| Sunshine early in the morning
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6th July 2012. A little bit sunshine through the tree-tops. I have all 3 photovoltaic modules with meh, becuase I want to test using 2 notebooks.
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| First full sunshine in the morning
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41 minutes later, the sun is now above the trees and the solar yield is first times greater than the demand from notebook and cell phone. 1.59 A times 13.8 V gives 22 Watt.
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| 3 photovoltaic modules to compare
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One hour later 8:40 am, it becomes cloudy. Opportunity to compare all3 modules, how much they deliver at cloudy sky and still not so high standing sun.
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| Run several notebooks by the sun
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As long as the notebooks do not charge the internal batteries, 85 Watt are enough for some economic notebools. Here is my ASUS UL30A connected by a car adapter to the 12V outlet.
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| Supply from the sun
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While I make my test with 2 connected notebooks, all 3 photovoltaic modules, deliver together 2.74 A at 14.2 V. 39 Watt are little bit below the demand.
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| Change the battery in a lyceum
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You have 2 batteries for Your notebook, but how do You exchange them, when You sit in a liceum with no plug in reach?
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