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I have always been interested in solar energy but these are really expensive

Inverters are hellish expensive! Charge controllers too. :-(

You don't need either of those for a minimalist system to charge your laptop - just a 12v panel, a "laptop car charger", some wires, and a "cigarette lighter" socket.

You can also use this system to run things like battery chargers, xenon lamps, fans during a power outage. I'm using something not too different for my laptop right now.

Just a thought.

Don't spend money you don't have, but you could certainly build a minimalist offgrid system for less than the cost of one laptop battery.

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Discussion

Malos10 2y ago

I am definitely intereses can You give me more info? And where i do store the charge from the solar panel?

Malos10 2y ago

It had to read it múltiple times to understand it hahaha , I think I have to start from the basic that is buying the panel... for what i understand you use it direct? You dont use anything in Middle to storage the energy from the solar panel

Low Information Voter 2y ago

Just saw your reply now sorry.

No need to store the power in a minimalist solar setup - your laptop already has a battery!

Now the voltage out of the solar panel varies a lot - the intensity of the sunlight, the temperature, and how much power you're using all affect it. This is a nuisance for most purposes, but laptop chargers designed for cars are designed to take it :)

Yes, buying the "12 volt" panel is the first step and the most expensive. Look up your laptop and find out how many watts it uses. Make sure your panel can produce more than that. Some 12 volt panels end in bare wires, these are easiest for this use.

Then you need an adaptor for the output of the panel, usually clips at one end and a car "cigarette lighter" socket at the other, these are about $2 .

Then the laptop charger. Designed for 12v, but I've used these on systems running at up to 24 volts with no trouble.

This system only works during daytime, of course, but it means you can run your laptop during the day even when the power is out.

Hope this helps you!