I just looked at my battery which was in a Vibrant made in 07/2010 and all of the numbers on the front and back are the same.
Honestly, providing a distinct S/N on a battery seems pointless to me. I think the numbers do refer to batches, so if a recall is needed they can verify the battery qualifies.
I bought the "2300mAh" Andida, and the quotes are there because this battery most definitely does NOT provide 2300mAh. Not to mention it doesn't really fit well and causes my case to not close all the way.
I'm tempted to buy the batteries mentioned in this thread.
What do you mean the numbers on the front and back are the same? The point was to compare your original s/n on your original battery to the serial number that everyone else has on their original battery.
Personally, I think it makes more sense for Samsung to put individual serial numbers on each battery. Why? Because believe it or not these companies do make a lot of money off batteries, just like laptop manufacturers do. They would want to protect themselves from all the china made knockoffs that look identical. It is a lot easier to knock off a product that just has batch numbers, a lot harder to knock off individual serial numbers that can be traced when returned or sent in for warranty replacement.
Why is everyone acting like printing individual serial numbers is such a daunting task.
Easy as pie:
1) printer prints the sticky battery cover with a unique serial number and QR code/bar code.
2) battery goes down automated belt
3) robot puts sticker onto battery
4) laser scans QR code, storing serial number, as finished product goes down automated belt
Job done.
You guys are acting like someone is standing there doing the impossible task of writing each serial number by hand. There is that little bar code or QR code on each battery next to the s/n. Automated scanning, and boom done.