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Please specify the battery type in your question. Include chemistry (e.g. lead-acid, Li-ion), voltage, capacity (in A·h or W·h), number of cells and how they are connected (series or parallel) .

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How do USB charging and "smart" charging ports (e.g. Anker's PowerIQ) work?

[...] there is actually something more complicated going on. Yes. In short, smart ports use hacks of non-standardized charging mechanisms to achieve optimal currents. The common assumption that a …
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