Determine Which Batteries Are Oldest

[rjgiorgi]

I have several arlo pro cameras ranging from pro 3, pro 4 and pro 5s. These all use the same batteries. I've had all of these cameras for some time and have swapped the batteries across all of the cameras over time, so I don't know which are the oldest. I'm getting ready to donate the pro 3 cameras and want to make sure I include the oldest batteries that came with the pro3 cameras. How can I tell which batteries are the oldest version?

I notice that the batteries have different variations of numbers stamped on them under the bar code, some start with AA, others start with 001, some have different part numbers also, like 308-50012-03 vs. 308-50001-01.

[BrookeN]

The battery's label or model # at the top portion, it would say  A-4a  which  has 4800mAh and these are the older batteries.