Battery and talk time for Sanyo SCP 8100

I want to know the about the battery and talk time for Sanyo SCP-8100 ?

Talk: 2.8 hours max. (168 minutes)
Standby: 257 hours max. (10.7 days)
LiIon Battery

These stats are for brand new batteries. Used, it's a toss of the dice. Could be the factory specs, could be an hour.

More info about the phone can be found here
Sanyo SCP-8100 Specs & Features (Phone Scoop)