Japan's Elecom recently introduced a solar charger for smartphones. This solar charger is mainly composed of a power supply battery and a solar generator. The generator is equipped with a kind of climate change function called "MPPT", which can generate electricity even on a cloudy day. A solar panel, the maximum power generation of 1.8 watts, the power generated by the solar generator will be stored in the power supply battery, simply connect the power supply battery to the phone to charge.
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