Outdoor DIY - solar charging panels

[jun]

Outdoor walking, if you take the long-term mobile power run out how to do? Field No power can not stop charging, solar charging panels are generally put in a backpack hanging outside, hikers requirements of the equipment is light and easy to carry, then there is high efficiency.


For the efficiency problem, the solar cell efficiency is for that area, rigid solar panels and flexible solar panels compared to high efficiency rigid, flexible but strong power generation capacity, mainly because of the flexible low-light voltage, good for pressure drop capability strong, physical conditions of its own ultra-light, ultra-thin, surface anti-acid, anti-evil little environment, impact resistance, non-glass material, rolled up or folded placement will not affect its performance and efficiency of these points is not rigid enough to make up for it high vulnerability. However, the drawback is that it can not be used at night or cloudy days, even if the sun is also due to the intensity of light caused by the instability of the output voltage and current, so it is still the middle of the mobile power supply as a more appropriate it is to use solar panels for charging mobile power, and then use the mobile power supply to the electrical equipment. Several solar panels on the following diagram....
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Solar panels

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Solar panels

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Solar panels

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36 flexible combination plate, the output 12V1.6A

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36 flexible combination plate, the output 12V1.6A

Mod note - forget the links

[PNjunction]

Outdoor walking, if you take the long-term mobile power run out how to do? Field No power can not stop charging, solar charging panels are generally put in a backpack hanging outside, hikers requirements of the equipment is light and easy to carry, then there is high efficiency.

TOYS. To actually do something *useful*, those small panels need to be stationary, and moved / aimed frequently directly perpendicular to the sun to accomplish any sort of charge. Kind of defeats the purpose of backpacking and charging-while-walking. Funny how the toy manufacturers never mention the importance of solar-insolation, and how different it is depending on location.

BUT, if the initial disappointment leads one to find out why they aren't working well and come to a reputable solar forum like this to build their own system, then maybe some good has been done.