[MurrayTORONTO]

My first Z30 used the BAT-50136-003 battery. I broke that phone and replaced it with new Z30 which uses the BAT-50136-101 battery. I replaced that battery with a brand new one of the same model (101).

Though, I've noticed the battery life is slightly less on the 101 as compared to the 003.

Is there a difference in battery life between the versions or is this just the placebo effect on me?

PS:
Both phones are STA100-5.
Both phones were restored from the same backup file, so they had identical software/apps.

[thurask]

I doubt there's much of a real difference, maybe a different factory or a change in the production process.

That both of those batteries are manufactured three to four years ago has more to do with any changes in capacity than the label in my opinion.