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I'm not an expert on this, but in general, no.
However, the internal resistance of a battery slowly increases over the life of the battery.
One exception might be, for instance, a lead acid battery where a couple of plates (in one cell) short together near the end of the battery life. In this case, the internal resistance will decrease, but you are also dealing with one less cell, so there is a big voltage drop.
However, the plates shorting together could come during charging, discharging, or durin your coffee break.