Is the Lot Code on the battery a date?
#1 : DC130313 HNT3B06945, BAT-47277-003,1ICP5/35/81, MH29634
#2 : DC121206 GOPAB03019, BAT-47277-003,1ICP5/33/81, MH29581
One is the original battery (phone purchased in May 2013)
One is a spare that I bought in 2015.
I'm not sure which is the spare and it would be nice to know.