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All in One Portable Solar Power Unit: 220V + 12V + 5V + Automatic Battery Charge! ;)
It depends on the power of inverter and discharging capacity of batteries...This one was around 80 watts if I remember it correctly...
Great work! :)I found this page while searching for portable 220v socket.I'm actually looking for portable garden tools, like the hedge trimmer.Would this pack be able to power such equipment?
600/300 lumen li-ion camping lamp
Motorbike + Bicycle + Generator Carrier, Retractable!
I'm still using it; about two years, but yes, using li ion batteries in hot environment reduces their lifetime. So, charge capacity is lower than two years before.But it never reaches 80 degree celcius which is higher than "vicat softening point" of plastic case.BTW, case has uv protected formulation and made in Germany...You may put a small fan and extra holes but of course it will also use some of panel's power; or you may put batteries out of the box (under of it as shade) while charging...
I thought about doing myself one like that. I even sort of did, if you take a look in my instructables. But what I didn't liked about the all-in-one case solution is the fact that you have to keep it all in the sun. A lot. Have you tested it? I mean, sure, as a proof of concept it's great, but leave that case out for a full day in a hot sun. You won't be able to touch the solar panels. The case beneath them has no vents and it holds li-ion batteries. Take a look at the chart below. Beyond 40 degrees Celsius, accelerated battery aging sets in. Above 80 degrees you'll get a fire. Even with vents, it will still be too hot. BMS WILL cut down the charging rate, trying to compensate for the high temperature detected. So you'll get undercharged, hot batteries.Also, the black plastic case under the intense UV treatment will get brittle and crack. That's from experience. Things aren't better with aluminium boxes, either. As I said, until batteries evolve to cope with high temperatures, their place is nowhere near the solar panels. I can see something like that working in slightly negative temperature environments where the cold would keep things in normal ranges - but the UV argument remains even stronger.
what are the specification for Voltage Protection diodes
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