Where is Royal and his long winded explanations when you need him?I cut and pasted some info on one of them here is the bit that covers it ,this is not the cell you have but it shows the normal kind of variations in voltage.
"Internal voltage regulators. Initial cell voltage of 3.6V switches to 3-3.2V within 12ms. "
Tenergy RCR123A 3.0V 900mAh Rechargeable Li-Ion Battery
Features:
Rechargeable CR123A Li-Ion Batteries with 3.0V working voltage and 900mAh capacity.
Tenergy RCR123A can be recharged up to 1000 times.
1 RCR123A Li-ion = 1000 CR123A Primary Cells
Replace the most of CR123A primary Lithium battery for a digital cameras and most flashlights.
Internal voltage regulators. Initial cell voltage of 3.6V switches to 3-3.2V within 12ms.
Full PCB protection against: Over-Discharge, Over-Charge, Short Circuit & Over-Current along with voltage regulation.
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Mike Quinn 
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