[Elecraft] K2 Internal Battery Voltages

[Carl J. Denbow]

I just recently replaced the battery in my K2.  I ordered from Elecraft, 
so this is the "approved" battery.  Last week, after a lengthy QSO, I 
forgot to turn the rig off, and when I noticed it the next day that 
battery was completely depeleted.  I charged it up for 24 hours with a 
14v supply and it would only charge to about 12.1 volts.  Though I don't 
remember for sure, I thought this new battery when I charged it 
originally started out at something like 13.2 volts or so.  Does this 
sound right?  What should this battery registered when fully charged?  
Have I damaged it significantly by letting it rundown to practically 
nothing?  Obviously, I goofed.  I just hope that I haven't significantly 
harmed by battery life. 

Thanks and 73,

Carl
N8VZ