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  1. I

    Portable solar charging questions

    I did some research and simulations on this subject, and here's what I found: based on the current size, weight and efficiency of commercial solar panels it quickly becomes impractical to carry more than about 60W worth of solar power. Even if one uses flexibly panels, which weigh about one...
  2. I

    24v controller cutting power at 25km/h

    Hiya, according to google, and subsequently Alibaba, 'Jantel' is a Chinese brand. The place of origin of this controller is possibly: Chongqing, China (Mainland) The wisest thing to do would be to buy a new controller, this time with good documentation and support. The second course of action...
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