This guide is good before think about setting up home solar power system. Whole earth is quite serious about solar power. Here is DIY Solar Panel Power Bank building instruction & precautions. Most websites on this kind of DIY projects will not say that you can use this for powering DIY projects but not costly cell phone. Commercial good solar panel power bank costs very high, has passed minimum standards ensuring proper Voltage and Amperage suitable for the mobile phone charging.
DIY Solar Panel Power Bank : Myth of Free Electricity
Actually, the total cost of building one unit of DIY Solar Panel Power Bank is not exactly less, particularly if you use a casing. Be it DIY Solar Panel Power Bank or commercial, charging a sane capacity of battery takes 2-3 days sunlight exposure with 10W solar panel. Additionally, it is practical to use a multimeter to check the output Voltage and Amperage.
Many things on this earth is not even closer to practical, but sells with buzzword. You’ll find these DIY Solar Panel Power Bank more useful for powering LED light panel. One time cost of ownership of solar panel is quite higher and demands bigger surface area. Yes, peoples also has invented DIY solar panel, but many things are not really practical. You always need a battery to store the electricity and few circuits, step up and for AC conversion, a converter. Electricity, to some extent always will get converted to heat. Commercial solar power supply to home is very practical. With this project, you’ll yourself understand the limitations and matter of one time and recurrent costs. Solar panel is most practical for ambient garden, street lights, traffic and driver signs simply because LED sucks very less power. Sunlight is available everywhere for free does not make the physics and economics to go in reverse direction.
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DIY Solar Panel Power Bank
Simply you need 3 components :
- 6v to 12v solar panel – At low end, they costs $2 to $5 per unit.
- 5V 1A Micro USB 18650 Lithium Battery Charging Board Charger Module (with protection function TP4056) – At low end, they costs $3 to $5 per unit.
- 18650 3.7 Volt Rechargeable battery – At low end, 7800mAh costs $5 per unit.
- DC-DC 3.7V to 5V step-up voltage booster – At low end, costs $3 per unit.
Your total cost becoming $2 + $3 + $5 + $3 = $13 per unit. It worths powering DIY electronic projects, lights which occasionally used. Commercial units will cost $20 per unit but will have the warranty of proper Amperage suitable for the mobile phone charging.
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