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Some friends working in solar panel earned much profits in accessories like charger, batteries, the Tesla powerwall also hotter and hotter, lithium battery may replace lead acid battery in many fields, its many be good business chances. Anyone interested in this business?

With various E-commerce platform shows up, its easier to get products all over the world, but since we are far away from the seller, and difficult to get the ture information about the seller, the prices of same looking and paramter has huge differences, always get consumer confused!