Question: can i charge LiON batteries discontinuously? i use LiON batteries on my phone and laptop..i would like to know if the lifetime of these batteries decreases if u charge sporadically? do we always have to charge when the power goes completely down?

Answer: The battery itself degrades over time, which is probably the most significant cause of the lifetime degeneration.  You can build up memory cells by charging at half-full very time, but those go away once you complete full charge/discharge cycles.
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