Building your own portable solar generator from discarded electronics is a great way to put old devices to use while learning valuable skills. With some basic electrical knowledge, commonly available components, and scrap parts, you can assemble your own solar generator relatively easily.
Selecting Components for the Solar Generator
The core pieces you'll need are:
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Solar panel(s) to capture sunlight and convert it to electricity. Look for panels in the 50-100W range from broken solar lights or dead solar battery chargers.
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Charge controller to regulate power from the solar panels to the battery. A 10A 12V controller is ideal. Salvage from a solar device or buy inexpensive.
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Deep cycle battery like a trolling motor battery to store power. Look forlead-acid gels or AGM types for portability.
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Power inverter to convert DC current from the battery into standard 120V AC power. Size for your intended devices - 300W is a good starting point.
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Wires and cabling to connect all components securely. Gather from old appliances or electronics.
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A case or box to mount it all. A wheeled tool box, plastic tote or crate works well.
Having spare parts on hand is also useful for attaching panels and making custom brackets.
Constructing the Generator
With the key pieces acquired, you can start your build:
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First, mount the charge controller and wire the battery to it securely using ring terminals and heat shrink tubing.
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Connect the solar panel(s) to the charge controller inputs.
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Link the power inverter to the battery output terminals and ground it.
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Install all the components into your container, using brackets as needed.
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Wire and connect any outlets or device cords to the inverter AC output.
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Add an on/off switch, voltmeter and fuses as desired.
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Seal and reinforce your box to protect from weather and impacts.
With careful planning, you can create a portable solar generator tailored to your specific power needs.
Usage and Care Tips
Your homemade solar generator requires some care and proper usage:
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Position the solar panel(s) in full sun to maximize charging each day.
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Only run devices equal to or below the inverter's rated wattage.
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Avoid completely draining the battery to prolong its lifespan.
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Keep it dry and out of extreme temps. Store indoors when not in use.
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Check voltage levels before and after each use. Recharge the battery regularly.
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Clean the solar panels periodically with a soft cloth to remove dust buildup.
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Check all wires and connections for tightness and corrosion.
With basic maintenance and care, your scrap electronics solar generator can provide free, renewable power anywhere the sun shines! Adjust the build and components to perfectly fit your specific needs.